SGM2036S_技术文档

SGM2036S

300mA, Low Power

and Low Dropout RF Linear Regulator

GENERAL DESCRIPTION

FEATURES

The SGM2036S is a low input voltage, low noise and

low dropout voltage linear regulator. It is capable of

supplying 300mA output current with typical dropout

voltage of only 190mV. The operating input voltage

range is from 1.6V to 5.5V. The output voltage range is

from 0.75V to 5.0V in fixed output version. For

adjustable output version, the output voltage can be

adjusted from 0.8V to 5.0V by using external resistors.

 Operating Input Voltage Range: 1.6V to 5.5V

 Fixed Outputs of 0.75V, 0.8V, 0.9V, 1.0V, 1.05V,

1.1V, 1.2V, 1.3V, 1.35V, 1.5V, 1.6V, 1.8V, 1.85V,

2.1V, 2.5V, 2.8V, 2.9V, 3.0V, 3.3V, 3.6V, 4.4V and

5.0V

 Adjustable Output from 0.8V to 5.0V

 300mA Output Current

 Low Supply Pin Current: 30μA (TYP)

 Low Dropout Voltage:

Other features include logic-controlled shutdown mode,

short-circuit current limit and thermal shutdown

protection. The SGM2036S has automatic discharge

function to quickly discharge V_OUTin the disabled status.

190mV (TYP) at 300mA, V_OUT= 3.0V

 Current Limiting and Thermal Protection

 Excellent Load and Line Transient Responses

 With Output Automatic Discharge

 Stable with Small Case Size Ceramic Capacitors

 Short Start-Up Time

The SGM2036S is available in Green XTDFN-1×1-4L,

SOT-23-5 and SC70-5 packages. It operates over an

operating temperature range of -40℃ to +125℃.

 Shutdown Supply Current: 0.05μA (TYP)

 -40℃ to +125℃ Operating Temperature Range

 Available in Green XTDFN-1×1-4L, SOT-23-5 and

SC70-5 Packages

APPLICATIONS

Modems

Cellular Telephones

PCMCIA Cards

Palmtop Computers

Portable Electronics

SG Micro Corp

MAY 2023 – REV. A. 2

www.sg-micro.com

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

PACKAGE/ORDERING INFORMATION

SPECIFIED

TEMPERATURE

RANGE

PACKAGE

ORDERING

NUMBER

PACKAGE

MARKING

PACKING

OPTION

MODEL

DESCRIPTION

SOT-23-5

SGM2036S-0.75

SGM2036S-0.8

SGM2036S-0.9

SGM2036S-1.0

SGM2036S-1.05

SGM2036S-1.1

SGM2036S-1.2

SGM2036S-1.3

SGM2036S-1.5

SGM2036S-1.8

SGM2036S-1.85

SGM2036S-2.1

SGM2036S-2.5

SGM2036S-2.8

SGM2036S-2.9

SGM2036S-3.0

SGM2036S-3.3

SGM2036S-3.6

SGM2036S-4.4

SGM2036S-5.0

SGM2036S-ADJ

-40℃ to +125℃

SGM2036S-0.75XN5G/TR

SGM2036S-0.8XN5G/TR

SGM2036S-0.9XN5G/TR

SGM2036S-1.0XN5G/TR

SGM2036S-1.05XN5G/TR

SGM2036S-1.1XN5G/TR

SGM2036S-1.2XN5G/TR

SGM2036S-1.3XN5G/TR

SGM2036S-1.5XN5G/TR

SGM2036S-1.8XN5G/TR

SGM2036S-1.85XN5G/TR

SGM2036S-2.1XN5G/TR

SGM2036S-2.5XN5G/TR

SGM2036S-2.8XN5G/TR

SGM2036S-2.9XN5G/TR

SGM2036S-3.0XN5G/TR

SGM2036S-3.3XN5G/TR

SGM2036S-3.6XN5G/TR

SGM2036S-4.4XN5G/TR

SGM2036S-5.0XN5G/TR

SGM2036S-ADJXN5G/TR

04EXX

G6ZXX

G78XX

G7GXX

G7HXX

G7IXX

Tape and Reel, 3000

SOT-23-5

G7JXX

G7KXX

G7LXX

G7MXX

G7NXX

G7PXX

G7SXX

G7VXX

G7XXX

G7YXX

G8EXX

G8GXX

G8IXX

G8JXX

G5QXX

SG Micro Corp

www.sg-micro.com

MAY 2023

2

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

PACKAGE/ORDERING INFORMATION (continued)

SPECIFIED

TEMPERATURE

RANGE

PACKAGE

DESCRIPTION

ORDERING

NUMBER

PACKAGE

MARKING

PACKING

OPTION

MODEL

SGM2036S-0.8

SGM2036S-0.9

SGM2036S-1.0

SGM2036S-1.05

SGM2036S-1.1

SGM2036S-1.2

SGM2036S-1.3

SGM2036S-1.5

SGM2036S-1.8

SGM2036S-1.85

SGM2036S-2.1

SGM2036S-2.5

SGM2036S-2.8

SGM2036S-2.9

SGM2036S-3.0

SGM2036S-3.3

SGM2036S-3.6

SGM2036S-4.4

SGM2036S-5.0

SGM2036S-ADJ

SC70-5

-40℃ to +125℃

SGM2036S-0.8XC5G/TR

SGM2036S-0.9XC5G/TR

SGM2036S-1.0XC5G/TR

SGM2036S-1.05XC5G/TR

SGM2036S-1.1XC5G/TR

SGM2036S-1.2XC5G/TR

SGM2036S-1.3XC5G/TR

SGM2036S-1.5XC5G/TR

SGM2036S-1.8XC5G/TR

SGM2036S-1.85XC5G/TR

SGM2036S-2.1XC5G/TR

SGM2036S-2.5XC5G/TR

SGM2036S-2.8XC5G/TR

SGM2036S-2.9XC5G/TR

SGM2036S-3.0XC5G/TR

SGM2036S-3.3XC5G/TR

SGM2036S-3.6XC5G/TR

SGM2036S-4.4XC5G/TR

SGM2036S-5.0XC5G/TR

SGM2036S-ADJXC5G/TR

G8KXX

G8LXX

G8MXX

G8NXX

G8PXX

G8QXX

G8RXX

G8SXX

G8TXX

G8UXX

G8VXX

G8YXX

G9HXX

G9JXX

G9KXX

G9MXX

G9NXX

G9QXX

G9RXX

G5PXX

Tape and Reel, 3000

SG Micro Corp

www.sg-micro.com

MAY 2023

3

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

PACKAGE/ORDERING INFORMATION (continued)

SPECIFIED

TEMPERATURE

RANGE

PACKAGE

DESCRIPTION

ORDERING

NUMBER

PACKAGE

MARKING

PACKING

OPTION

MODEL

SGM2036S-0.75 XTDFN-1×1-4L -40℃ to +125℃ SGM2036S-0.75XXDH4G/TR

0D

1Y

3K

3L

3M

3N

3P

3Q

3R

3S

24

3T

3U

3V

3Y

4D

4H

4I

Tape and Reel, 10000

SGM2036S-0.8 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-0.9 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-1.0 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-0.8XXDH4G/TR

SGM2036S-0.9XXDH4G/TR

SGM2036S-1.0XXDH4G/TR

SGM2036S-1.05 XTDFN-1×1-4L -40℃ to +125℃ SGM2036S-1.05XXDH4G/TR

SGM2036S-1.1 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-1.2 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-1.3 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-1.1XXDH4G/TR

SGM2036S-1.2XXDH4G/TR

SGM2036S-1.3XXDH4G/TR

SGM2036S-1.35 XTDFN-1×1-4L -40℃ to +125℃ SGM2036S-1.35XXDH4G/TR

SGM2036S-1.5 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-1.6 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-1.8 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-1.5XXDH4G/TR

SGM2036S-1.6XXDH4G/TR

SGM2036S-1.8XXDH4G/TR

SGM2036S-1.85 XTDFN-1×1-4L -40℃ to +125℃ SGM2036S-1.85XXDH4G/TR

SGM2036S-2.1 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-2.5 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-2.8 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-2.9 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-3.0 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-3.3 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-3.6 XTDFN-1×1-4L -40℃ to +125℃

SGM2036S-2.1XXDH4G/TR

SGM2036S-2.5XXDH4G/TR

SGM2036S-2.8XXDH4G/TR

SGM2036S-2.9XXDH4G/TR

SGM2036S-3.0XXDH4G/TR

SGM2036S-3.3XXDH4G/TR

SGM2036S-3.6XXDH4G/TR

4J

2D

MARKING INFORMATION

NOTE: XX = Date Code.

SOT-23-5/SC70-5

XTDFN-1×1-4L

YYY X X

YY

Date Code - Week

Date Code - Year

Serial Number

Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If

you have additional comments or questions, please contact your SGMICRO representative directly.

SG Micro Corp

www.sg-micro.com

MAY 2023

4

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

ABSOLUTE MAXIMUM RATINGS

OVERSTRESS CAUTION

IN, EN to GND ..................................................... -0.3V to 6V

OUT, BP/FB to GND ...............-0.3V to MIN((V_IN+ 0.3V), 6V)

Power Dissipation, P_D@ T_A= +25℃

XTDFN-1×1-4L ..........................................................539mW

SOT-23-5...................................................................355mW

SC70-5.......................................................................417mW

Package Thermal Resistance

Stresses beyond those listed in Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to

absolute maximum rating conditions for extended periods

may affect reliability. Functional operation of the device at any

conditions beyond those indicated in the Recommended

Operating Conditions section is not implied.

XTDFN-1×1-4L, θ_JA.................................................. 232℃/W

XTDFN-1×1-4L, θ_JB.................................................. 103℃/W

XTDFN-1×1-4L, θ_JC................................................. 194℃/W

SOT-23-5, θ_JA.......................................................... 352℃/W

SOT-23-5, θ_JB.......................................................... 199℃/W

SOT-23-5, θ_JC.......................................................... 247℃/W

SC70-5, θ_JA.............................................................. 300℃/W

SC70-5, θ_JB.............................................................. 148℃/W

SC70-5, θ_JC.............................................................. 176℃/W

Junction Temperature .................................................+150℃

Storage Temperature Range.........................-65℃ to +150℃

Lead Temperature (Soldering, 10s) ............................+260℃

ESD Susceptibility

ESD SENSITIVITY CAUTION

This integrated circuit can be damaged if ESD protections are

not considered carefully. SGMICRO recommends that all

integrated circuits be handled with appropriate precautions.

Failureto observe proper handlingand installation procedures

can cause damage. ESD damage can range from subtle

performance degradation tocomplete device failure. Precision

integrated circuits may be more susceptible to damage

because even small parametric changes could cause the

device not to meet the published specifications.

DISCLAIMER

SG Micro Corp reserves the right to make any change in

HBM.............................................................................5000V

CDM ............................................................................1000V

circuit design, or specifications without prior notice.

RECOMMENDED OPERATING CONDITIONS

Operating Input Voltage Range ..........................1.6V to 5.5V

Enable Input Voltage Range..................................0V to 5.5V

Input Effective Capacitance, C_IN......................... 0.5μF (MIN)

Output Effective Capacitance, C_OUT.................0.5μF to 10μF

Operating Junction Temperature Range.......-40℃ to +125℃

SG Micro Corp

www.sg-micro.com

MAY 2023

5

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

PIN CONFIGURATIONS

(TOP VIEW)

IN

EN

4

3

OUT

1

2

3

5

4

IN

GND

EN

EP

BP/FB

1

2

OUT

GND

XTDFN-1×1-4L

SOT-23-5/SC70-5

PIN DESCRIPTION

XTDFN-1×1-4L

NAME

FUNCTION

SOT-23-5/

SC70-5

Regulator Output Pin. It is recommended to use a ceramic capacitor with

effective capacitance in the range of 0.5μF to 10μF to ensure stability. This

ceramic capacitor should be placed as close as possible to OUT pin.

1

2

3

5

2

3

OUT

GND

EN

Ground.

Enable Pin. Drive EN high to turn on the regulator. Drive EN low to turn off the

regulator. This pin must be pulled high by an external resistor connected to IN

pin if EN pin is not used.

Input Voltage Supply Pin. It is recommended to use a 1μF or larger ceramic

capacitor from IN pin to ground to get good power supply decoupling. This

ceramic capacitor should be placed as close as possible to IN pin.

Reference-Noise Bypass Pin (fixed voltage version only). Bypass with an

external capacitor C_BPcan reduce output noise. The capacitor is recommended

to be placed very close to the pin for high PSRR. This pin can also be floating.

Feedback Voltage Input Pin (adjustable voltage version only). Connect this pin

to the midpoint of an external resistor divider to adjust the output voltage.

Place the resistors as close as possible to this pin.

4

1

IN

BP

‒

4

FB

Exposed Pad. Connect it to a large ground plane to maximize thermal

performance. This pad is not an electrical connection point.

Exposed Pad

‒

SG Micro Corp

www.sg-micro.com

MAY 2023

6

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

FUNCTIONAL BLOCK DIAGRAMS

IN

OUT

Current Limit

R₂

&

Sub-Regulator

Thermal Protection

R₃

GND

R_DIS

R₁

Voltage

Reference

C₁

EN

Shutdown

SGM2036S-Fixed Output

Figure 1. Internal Block Diagram of Fixed Output Voltage (XTDFN-1×1-4L Version)

IN

OUT

Current Limit

&

Thermal Protection

R₂

R₃

Sub-Regulator

GND

R_DIS

R₁

Voltage

Reference

BP

C₁

EN

Shutdown

SGM2036S-Fixed Output

Figure 2. Internal Block Diagram of Fixed Output Voltage (SOT-23-5 and SC70-5 Versions)

IN

OUT

FB

Current Limit

&

Thermal Protection

Sub-Regulator

GND

R_DIS

R₁

Voltage

Reference

C₁

EN

Shutdown

SGM2036S-ADJ

Figure 3. Internal Block Diagram of Adjustable Output Voltage (SOT-23-5 and SC70-5 Versions)

SG Micro Corp

www.sg-micro.com

MAY 2023

7

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

ELECTRICAL CHARACTERISTICS

(V_IN= (V_OUT(NOM)+ 0.5V) or 2.5V (whichever is greater), V_EN= V_IN, T_J= -40℃ to +125℃, typical values are at T_J= +25℃, unless

otherwise noted.)

PARAMETER

SYMBOL

V_IN

CONDITIONS

MIN

1.6

TYP

MAX

5.5

UNITS

Input Voltage Range

V

%

V

Output Voltage Accuracy

Feedback Voltage

V_OUT

V_FB

I_OUT= 0.1mA, T_J= +25℃

-2.5

0.78

2.5

I_OUT= 0.1mA, SGM2036S-ADJ, T_J= +25℃

0.8

1

0.82

100

1.6

FB Pin Leakage Current

I_FB

V_FB= 0.9V

V_INrising

V_INfalling

nA

1.5

1.3

Under-Voltage Lockout Thresholds

Line Regulation

V_UVLO

V

∆V_OUT

∆V_IN× V_OUT

V_IN= 1.6V or (V_OUT(NOM)+ 0.5V) to 5.5V,

I_OUT= 0.1mA, T_J= +25℃

0.04

0.1

%/V

mV

I

_OUT= 0.1mA to 300mA, T_J= +25℃

I_OUT= 0.1mA to 300mA, SGM2036S-ADJ, T_J= +25℃

_OUT(NOM)= 0.8V

30

3

45

10

Load Regulation

ΔV_OUT

V

880

780

690

640

560

390

320

260

215

190

800

380

30

1200

1100

1000

900

800

550

420

340

280

250

V_OUT(NOM)= 0.9V

1.0V ≤ V_OUT(NOM)< 1.1V

1.1V ≤ V_OUT(NOM)< 1.2V

1.2V ≤ V_OUT(NOM)< 1.5V

1.5V ≤ V_OUT(NOM)< 1.8V

1.8V ≤ V_OUT(NOM)< 2.1V

2.1V ≤ V_OUT(NOM)< 2.5V

2.5V ≤ V_OUT(NOM)< 3.0V

3.0V ≤ V_OUT(NOM)≤ 5.0V

V_OUT= V_OUT(NOM)- 100mV,

I_OUT= 300mA, T_J= +25℃

Dropout Voltage

V_DROP

mV

Output Current Limit

Short-Circuit Current

Supply Pin Current

I_LIMIT

I_SHORT

I_Q

350

1.5

mA

µA

V_OUT= 0V

No load, T_J= +25℃

V_EN= 0V

45

1

Shutdown Supply Current

I_SHDN

V_IH

0.05

µA

EN Input Thresholds

EN Input Bias Current

V

_IN= 1.6V to 5.5V

V

V_IL

0.4

1.5

1

I_BH

V_EN= 5.5V

V_EN= 0V

0.8

0.01

75

µA

I_BL

Output Discharge Resistance

Start-Up Time

R_DIS

V_EN= 0V, V_IN= 4V, V_OUT= 0.3V

Ω

C_OUT= 1μF, I_OUT= 1mA, V_OUT(NOM)= 1.8V,

from assertion of V_ENto V_OUT= 90% × V_OUT(NOM)

t_STR

100

µs

C_BP= 0nF, C_OUT= 1μF, I_OUT= 30mA,

V_IN= 2.8V, V_OUT(NOM)= 1.8V,

∆V_RIPPLE= 0.2V_P-P

C_BP= 10nF, C_OUT= 1μF, I_OUT= 30mA,

V_IN= 2.8V, V_OUT(NOM)= 1.8V,

∆V_RIPPLE= 0.2V_P-P

f = 217Hz

f = 1kHz

82

76

Power Supply Rejection Ratio

Output Voltage Noise

PSRR

dB

f = 217Hz

f = 1kHz

92

86

I_OUT= 0mA

I_OUT= 30mA

I_OUT= 0mA

I_OUT= 30mA

18

C_BP= 0nF, C_OUT= 1µF, V_OUT(NOM)= 1.8V,

f = 10Hz to 100kHz

100

13

e_n

µV_RMS

C_BP= 10nF, C_OUT= 1µF, V_OUT(NOM)= 1.8V,

f = 10Hz to 100kHz

60

Thermal Shutdown Temperature

Thermal Shutdown Hysteresis

T_SHDN

160

20

℃

ΔT_SHDN

SG Micro Corp

www.sg-micro.com

MAY 2023

8

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

TYPICAL PERFORMANCE CHARACTERISTICS

T_J= +25℃, V_IN= (V_OUT(NOM)+ 0.5V) or 2.5V (whichever is greater), V_EN= V_IN, C_IN= C_OUT= 1μF, C_BP= 0nF, unless otherwise noted.

Turn On Speed with EN Pin

V_EN

V_OUT

I_IN

V_OUT= 3.3V, I_OUT= 0mA, V_IN= 4.3V

V_OUT= 1.8V, I_OUT= 0mA, V_IN= 2.8V

Time (20μs/div)

Turn Off Speed with EN Pin

V_EN

V_OUT

I_IN

V_EN

V_OUT

I_IN

V_OUT= 3.3V, I_OUT= 0mA, V_IN= 4.3V

V_OUT= 1.8V, I_OUT= 0mA, V_IN= 2.8V

Time (40μs/div)

Line Transient Response

V_IN

V_OUT

V_OUT= 1.8V, I_OUT= 30mA, V_IN= 2.8V to 3.8V

V_OUT= 3.3V, I_OUT= 30mA, V_IN= 4.3V to 5.3V

Time (40μs/div)

SG Micro Corp

www.sg-micro.com

MAY 2023

9

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

TYPICAL PERFORMANCE CHARACTERISTICS (continued)

T_J= +25℃, V_IN= (V_OUT(NOM)+ 0.5V) or 2.5V (whichever is greater), V_EN= V_IN, C_IN= C_OUT= 1μF, C_BP= 0nF, unless otherwise noted.

Load Transient Response

I_OUT

V_OUT

V_OUT= 1.8V, V_IN= 2.8V, I_OUT= 1mA to 300mA

V_OUT= 3.3V, V_IN= 4.3V, I_OUT= 1mA to 300mA

Time (100μs/div)

Load Transient Response

I_OUT

V_OUT

V_OUT= 3.3V, V_IN= 4.3V, I_OUT= 50mA to 100mA

V_OUT= 1.8V, V_IN= 2.8V, I_OUT= 50mA to 100mA

Time (100μs/div)

Power Supply Rejection Ratio vs. Frequency

C_BP= 10nF

Power Supply Rejection Ratio vs. Frequency

120

100

80

60

40

20

0

120

100

80

60

40

20

0

C_BP= 10nF

C_BP= 0nF

V_OUT= 1.8V, V_IN= 2.8V,

V_OUT= 3.3V, V_IN= 4.3V,

I

_OUT= 30mA, C_IN= 0μF

10 100 1000 10000

Frequency (kHz)

I

_OUT= 30mA, C_IN= 0μF

10 100 1000 10000

Frequency (kHz)

0.01

0.1

1

0.01

0.1

1

SG Micro Corp

www.sg-micro.com

MAY 2023

10

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

TYPICAL PERFORMANCE CHARACTERISTICS (continued)

T_J= +25℃, V_IN= (V_OUT(NOM)+ 0.5V) or 2.5V (whichever is greater), V_EN= V_IN, C_IN= C_OUT= 1μF, C_BP= 0nF, unless otherwise noted.

Dropout Voltage vs. Temperature

400

350

300

250

200

150

100

50

300

250

200

150

100

50

I_OUT= 300mA

I_OUT= 100mA

V_OUT= 3.3V

V_OUT= 1.8V

0

-40 -25 -10

5

20 35 50 65 80 95 110 125

-40 -25 -10

5

20 35 50 65 80 95 110 125

Temperature (℃)

Output Voltage vs. Temperature

1.802

1.801

1.8

3.309

3.306

3.303

3.3

1.799

1.798

1.797

1.796

1.795

3.297

3.294

3.291

3.288

V_OUT= 1.8V, I_OUT= 1mA

V_OUT= 3.3V, I_OUT= 1mA

-40 -25 -10

5

20 35 50 65 80 95 110 125

-40 -25 -10

5

20 35 50 65 80 95 110 125

Temperature (℃)

Supply Pin Current vs. Temperature

45

40

35

30

25

20

15

45

40

35

30

25

20

15

V_OUT= 1.8V, I_OUT= 0mA

V_OUT= 3.3V, I_OUT= 0mA

-40 -25 -10

5

20 35 50 65 80 95 110 125

-40 -25 -10

5

20 35 50 65 80 95 110 125

Temperature (℃)

SG Micro Corp

www.sg-micro.com

MAY 2023

11

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

TYPICAL PERFORMANCE CHARACTERISTICS (continued)

T_J= +25℃, V_IN= (V_OUT(NOM)+ 0.5V) or 2.5V (whichever is greater), V_EN= V_IN, C_IN= C_OUT= 1μF, C_BP= 0nF, unless otherwise noted.

Dropout Voltage vs. Output Current

400

350

300

250

200

150

100

50

300

250

200

150

100

50

T_J= -40℃

T_J= +25℃

T_J= +125℃

V_OUT= 1.8V

250 300

V_OUT= 3.3V

200 250 300

0

50

100

150

200

0

50

100

150

Output Current (mA)

Ground Pin Current vs. Output Current

800

700

600

500

400

300

200

100

0

800

700

600

500

400

300

200

100

0

V_OUT= 1.8V

250

V_OUT= 3.3V

200 250 300

0

50

100

150

200

300

50

100

150

Output Current (mA)

Output Voltage vs. Input Voltage

3.5

3

3.5

3

2.5

2

2.5

2

1.5

1

1.5

1

0.5

0

0.5

0

V_OUT= 1.8V

4.4 5.5

V_OUT= 3.3V

0.0

1.1

2.2

3.3

1.1

2.2

3.3

4.4

5.5

Input Voltage (V)

SG Micro Corp

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MAY 2023

12

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

TYPICAL APPLICATION CIRCUITS

V

_IN= 1.6V to 5.5V

V_OUT

4

1

IN

OUT

C_OUT

C_IN

SGM2036S-FIX

1μF

3

ON

EN

OFF

GND

2

Figure 4. Fixed Output Version (XTDFN-1×1-4L)

V_IN= 1.6V to 5.5V

V_OUT

1

3

5

4

IN

OUT

C_IN

1μF

C_OUT

1μF

SGM2036S-FIX

ON

EN

BP

GND

2

OFF

C_BP

10nF

Figure 5. Fixed Output Version (SOT-23-5/SC70-5)

V_IN= 1.6V to 5.5V

V_OUT

1

3

5

4

IN

OUT

C_IN

1μF

C_OUT

1μF

C_FF

1nF

R₁

R₂

SGM2036S-ADJ

FB

ON

EN

OFF

GND

2

V





OUT

R₁= R₂×

-1







0.8V



Figure 6. Adjustable Output Version (SOT-23-5/SC70-5)

SG Micro Corp

www.sg-micro.com

MAY 2023

13

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

APPLICATION INFORMATION

The SGM2036S is a low input voltage, low noise and

low dropout LDO and provides 300mA output current.

These features make the device a reliable solution to

solve many challenging problems in the generation of

clean and accurate power supply. The high

performance also makes the SGM2036S useful in a

variety of applications. The SGM2036S provides the

protection functions for output overload, output

short-circuit condition and overheating.

the output voltage is determined by the following

equation:





R

V_OUT= V^FB× 1+

(1)



¹

R₂





where:

V_OUTis output voltage and V_FBis the internal voltage

reference, V_FB= 0.8V.

One parallel capacitor (C_FF) with R₁can be used to

improve the feedback loop stability and PSRR,

increase the transient response and reduce the output

noise. Use R₂= 160kΩ to maintain a 5μA minimum

load.

The SGM2036S provides an EN pin as an external chip

enable control to enable/disable the device. When the

regulator is in shutdown state, the shutdown current

consumes as low as 0.05μA (TYP).

V_IN= 1.6V to 5.5V

V_OUT

1

5

Input Capacitor Selection (C_IN)

IN

OUT

C_IN

1μF

The input decoupling capacitor should be placed as

close as possible to the IN pin to ensure the device

stability. 1μF or larger X7R or X5R ceramic capacitor is

selected to get good dynamic performance.

C_OUT

1μF

C_FF

1nF

R₁

R₂

SGM2036S-ADJ

4

FB

3

ON

EN

OFF

GND

2

When V_INis required to provide large current

instantaneously, a large effective input capacitor is

required. Multiple input capacitors can limit the input

tracking inductance. Adding more input capacitors is

available to restrict the ringing and to keep it below the

device absolute maximum ratings.

Figure 7. Adjustable Output Voltage Application

Enable Operation

The EN pin of the SGM2036S is used to enable/disable

its device and to deactivate/activate the output

automatic discharge function.

Output Capacitor Selection (C_OUT

)

When the EN pin voltage is lower than 0.4V, the device

is in shutdown state. There is no current flowing from IN

to OUT pins. In this state, the automatic discharge

transistor is active to discharge the output voltage

through a 75Ω (TYP) resistor.

The output capacitor should be placed as close as

possible to the OUT pin. 1μF or larger X7R or X5R

ceramic capacitor is selected to get good dynamic

performance. The minimum effective capacitance of

C_OUTthat SGM2036S can remain stable is 0.5μF. For

ceramic capacitor, temperature, DC bias and package

size will change the effective capacitance, so enough

margin of C_OUTmust be considered in design.

Additionally, C_OUTwith larger capacitance and lower

ESR will help increase the high frequency PSRR and

improve the load transient response.

When the EN pin voltage is higher than 1.5V, the device

is in active state. The output voltage is regulated to the

expected value and the automatic discharge transistor

is turned off.

The EN pin is pulled down by an internal pull-down

resistor when the EN pin is floated. This current source

will ensure the SGM2036S in shutdown state and

reduce the power dissipation in system.

Adjustable Regulator

The output voltage of the SGM2036S-ADJ can be

adjusted from 0.8V to 5.0V. The FB pin will be

connected to two external resistors as shown in Figure 7,

SG Micro Corp

www.sg-micro.com

MAY 2023

14

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

APPLICATION INFORMATION (continued)

Reverse Current Protection

Output Current Limit and Short-Circuit

The PMOS power transistor has an inherent body

diode. This body diode will be forward biased when

V_OUT> V_IN. When V_OUT> V_IN, the reverse current

flowing from the OUT pin to the IN pin will damage the

SGM2036S. If V_OUT> V_INevent would happen in

system, one external diode will be added between OUT

pin and IN pin in circuit design to protect the

SGM2036S.

Protection

When overload events happen, the output current is

internally limited to 800mA (TYP). When the OUT pin is

shorted to ground, the short-circuit protection will limit

the output current to 380mA (TYP).

Thermal Shutdown

The SGM2036S can detect the temperature of die.

When the die temperature exceeds the threshold value

of thermal shutdown, the SGM2036S will be in

shutdown state and it will remain in this state until the

die temperature decreases to +140℃.

External Diode

4

3

1

IN

V_OUT

V_IN

OUT

SGM2036S

C_IN

1μF

C_OUT

1μF

Power Dissipation (P_D)

Thermal protection limits power dissipation in the

SGM2036S. When power dissipation on pass element

(P_D= (V_IN- V_OUT) × I_OUT) is too much and the operating

junction temperature exceeds +160℃, the OTP circuit

starts the thermal shutdown function and turns the pass

element off.

ON

EN

OFF

GND

2

Figure 8. Reverse Protection Reference Design

Negatively Biased Output

Therefore, thermal analysis for the chosen application is

important to guarantee reliable performance over all

conditions. To guarantee reliable operation, the junction

temperature of the SGM2036S must not exceed +125℃.

When the output voltage is negative, the chip may not

start up due to parasitic effects. Ensure that the output

is greater than -0.3V under all conditions. If negatively

biased output is excessive and expected in the

application, a Schottky diode can be added between

the OUT pin and GND pin.

The maximum allowable power dissipation depends on

the thermal resistance of the IC package, the PCB

layout, the rate of surrounding airflow, and the

difference between the junction temperature and

ambient temperature. The maximum power dissipation

can be approximated using the following equation:

4

1

V_IN

IN

V_OUT

OUT

SGM2036S

C_IN

1μF

C_OUT

1μF

Schottky

Diode

3

ON

P_D(MAX)= (T_J(MAX)- T_A)/θ_JA

(2)

EN

OFF

GND

2

where T_J(MAX)is the maximum junction temperature, T_A

is the ambient temperature, and θ_JAis the junction

-to-ambient thermal resistance.

Figure 9. Negatively Biased Output Application

SG Micro Corp

www.sg-micro.com

MAY 2023

15

300mA, Low Power

SGM2036S

and Low Dropout RF Linear Regulator

REVISION HISTORY

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

MAY 2023 ‒ REV.A.1 to REV.A.2

Page

Updated Pin Description......................................................................................................................................................................................6

APRIL 2023 ‒ REV.A to REV.A.1

Page

Added SGM2036S-3.6XN5G/TR to Package/Ordering Information section..........................................................................................................2

Added SGM2036S-3.6XC5G/TR to Package/Ordering Information section..........................................................................................................3

Added SGM2036S-3.6XXDH4G/TR to Package/Ordering Information section.....................................................................................................4

Added SGM2036S-1.6XXDH4G/TR to Package/Ordering Information section.....................................................................................................4

Changes from Original (NOVEMBER 2022) to REV.A

Page

Changed from product preview to production data.............................................................................................................................................All

SG Micro Corp

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MAY 2023

16


型号：	SGM2036S
厂家：	Shengbang Microelectronics Co, Ltd
描述：	300mA, Low Power and Low Dropout RF Linear Regulator
文件：	总21页 (文件大小：1259K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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