SC5205-3.6CSKTRT [SEMTECH]
Fixed Positive LDO Regulator, 3.6V, 0.3V Dropout, CMOS, PDSO5, ROHS COMPLIANT, SOT-23, 5 PIN;型号: | SC5205-3.6CSKTRT |
厂家: | SEMTECH CORPORATION |
描述: | Fixed Positive LDO Regulator, 3.6V, 0.3V Dropout, CMOS, PDSO5, ROHS COMPLIANT, SOT-23, 5 PIN 光电二极管 输出元件 调节器 |
文件: | 总5页 (文件大小:149K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
SC5205
150mA Ultra Low Dropout, Low
Noise Micropower Linear Regulator
POWER MANAGEMENT
Description
Features
The SC5205 is a 150mA ultra low dropout linear
regulator with a built in CMOS/TTL logic level enable
switch. It is designed specifically for battery powered
applications where low quiescent current and low
dropout are critical for battery longevity.
Ultra low dropout voltage - 165mV @ 150mA
Guaranteed 150mA output current
Low ground pin current at all loads
<5µA quiescent current in shutdown
Wide input supply voltage range 2.5V to 16V in
Wide output voltage range
Excellent line regulation
Industrial temperature range
Surface mount packaging (5 pin SOT-23)
Lead-free packaging available, fully WEEE and
RoHS compliant
The SC5205 uses a Semtech proprietary internal PNP
device for the pass element, providing a low dropout
voltage of 165mV at a load of 150mA, while maintaining
a ground pin current of 2750µA.
The output noise is reduced by placing a 10nF capacitor
on pin 4 (bypass).
Applications
Each device contains a bandgap reference, error
amplifier, PNP pass element, thermal and current
limiting circuitry and resistor divider network for setting
output voltage.
Battery Powered Systems
Cellular Telephones
Cordless Telephones
Pagers
Personal Digital Assistants
Portable Instrumentation
Cameras
Portable Consumer Equipment
PCMCIA cards
The SC5205 is packaged in a 5 pin SOT-23 surface mount
package for a very small footprint and it requires only a
1µF capacitor on the output and a 0.01µF on the bypass
pin for a minimum amount of external components.
Typical Application Circuit
U1 SC5205
1
5
4
VIN
VO
VIN
VO
2
GND
3
EN
BYP
EN
C1
C3
+
+
1uF
1uF
C2
10nF
Notes:
(1) CIN (C1) is needed if the device is far from the supply’s filter capacitors, or for operation from a battery. A value
of 1.0µF or greater should be used. CIN may be tantalum or aluminum electrolytic.
(2) CO (C3) should be a 1µF or greater tantalum or aluminum electrolytic capacitor. Larger value capacitors will
improve the overall transient response.
(3) CBYP (C2 - required) should be placed as close as possible to pin 4 and ground. A 10nF ceramic capacitor is
recommended.
(4) EN may be tied to VIN if the shutdown feature is not required. Maximum EN voltage = VIN.
Revision: March 8, 2006
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SC5205
POWER MANAGEMENT
Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions for extended periods of time may
affect device reliability.
Parameter
Symbol
VIN
PD
Limits
-0.3 to +20
Internally Limited
256
Units
V
Input Supply Voltage
Power Dissipation
W
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Case
Operating Ambient Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 sec
ESD Rating (Human Body Model)
°C/W
°C/W
°C
θJA
81
θJC
TA
-40 to +85
-40 to +125
-65 to +150
300
TJ
°C
TSTG
TLEAD
VESD
°C
°C
2
kV
Electrical Characteristics
Unless specified: VIN = VO(NOM) + 1V, IO = 100µA, CBYP = 10nF, CO = 1µF, VENABLE ≥ 1.8V. Values in bold apply over the full operating temperature range.
Parameter
Symbol
VIN
Test Conditions
Min
2.5
Typ
Max
16
Units
Supply Voltage Range
Output Voltage
V
V
VO
-1%
-3%
VO
+1%
+3%
Output Voltage
TC
40
ppm/°C
%/V
Temperature Coefficient
Line Regulation
Load Regulation
Dropout Voltage(1)
REG(LINE)
VIN = (VO(NOM) + 1V) to 16V
IO = 0.1mA to 150mA
IO = 100µA
0.06
0.12
0.15
REG(LOAD)
0.001 0.004 %/mA
0.007
VD
5
10
25
mV
mV
mV
mV
IO = 50mA
100
140
165
150
200
200
250
250
300
IO = 100mA
IO = 150mA
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SC5205
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless specified: VIN = VO(NOM) + 1V, IO = 100µA, CBYP = 10nF, CO = 1µF, VENABLE ≥ 1.8V. Values in bold apply over the full operating temperature range.
Parameter
Symbol
Test Conditions
Min
Typ
Max
125
Units
Ground Pin Current
IGND
IO = 100µA
80
µA
150
IO = 50mA
IO = 100mA
IO = 150mA
600
1000
1500
µA
µA
µA
1600 2100
2600
2750 3300
4000
VEN < 0.4V (shutdown)
VO > (VO(NOM) - 5%)
IO = 100µA, f = 100Hz
0.01
300
50
5
µA
mA
dB
Current Limit(2)
ILIM
500
Ripple Rejection Ratio
Thermal Regulation
PSRR
0.05
%/W
∆VO
PD
RMS Output Noise
en
IO = 50mA, C = 10nF, CO = 2.2µF,
BW =B1YP0Hz to 99kHz
210
nV
Hz
V
Enable Input Voltage
VEN
Low = O/P OFF
High = O/P ON
0.4
2.0
Enable Input Current
IEN
V
V
EN ≤ 0.4V
EN ≥ 1.8V
-0.01
5
-1
10
20
µA
µA
Notes:
(1) Defined as the input to output differential at which the output voltage drops to 2% below the value measured at
a differential of 1V.
(2) As the load resistance further decreases, the SC5205 folds back the output current to approximately 150mA at
VO = 0V.
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SC5205
POWER MANAGEMENT
Pin Configuration
Ordering Information
(1)(2)
Top View
Device
Package
SC5205-X.XCSKTR
SC5205-X.XCSKTRT(3)
5 pin SOT-23
Notes:
(1) Where -X.X denotes voltage options. Available
voltages are: 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 3.6V, 3.8V,
4.0V and 5.0V.
(2) Only available in tape and reel packaging. A reel
contains 3000 devices.
SOT-23-5
(3) Lead free packaging. This product is fully WEEE and
RoHS compliant.
Block Diagram
Pin Descriptions
Pin
Pin Name Pin Function
1
2
3
4
VIN
GND
EN
Supply voltage input.
Ground.
Active high enable input. Connect to VIN if not being used.
BYP
Reference bypass. Connect a 10nF capacitor (required) between this pin and GND to reduce
output noise
5
VO
Voltage output.
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SC5205
POWER MANAGEMENT
Outline Drawing - SOT-23-5
DIMENSIONS
INCHES MILLIMETERS
A
DIM
A
MIN NOM MAX MIN NOM MAX
e1
D
E
-
-
-
-
.035
.057 0.90
.006 0.00
1.45
0.15
A1 .000
A2 .035 .045 .051
.90
.020 0.25
.009 0.08
1.15 1.30
N
-
-
-
-
b
.010
.003
0.50
0.22
2X
E/2
c
EI
D
.110 .114 .118 2.80 2.90 3.00
E1 .060 .063 .069 1.50 1.60 1.75
1
2
E
.110 BSC
.037 BSC
.075 BSC
2.80 BSC
0.95 BSC
1.90 BSC
ccc C
2X N/2 TIPS
e
e1
L
e
.012 .018 .024 0.30 0.45 0.60
(.024)
(0.60)
L1
N
B
5
5
-
-
01
0°
10°
0°
10°
aaa
.004
.008
.008
0.10
0.20
0.20
D
bbb
ccc
aaa C
A2
A
SEATING PLANE
A1
bxN
bbb
H
C
c
GAGE
C
A-B D
PLANE
0.25
L
01
(L1)
DETAIL A
SEE DETAIL A
SIDE VIEW
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2. DATUMS -A- AND -B- TO BE DETERMINED AT DATUM PLANE -H-
3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
Land Pattern - SOT-23-5
X
DIMENSIONS
DIM
INCHES
(.098)
.055
MILLIMETERS
(2.50)
1.40
0.95
0.60
1.10
3.60
C
G
P
X
Y
Z
(C)
G
Z
.037
.024
Y
.043
.141
P
NOTES:
1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET.
Contact Information for Semtech International AG
Taiwan Branch
Korea Branch
Shanghai Office
Tel: 886-2-2748-3380
Fax: 886-2-2748-3390
Semtech Switzerland GmbH
Japan Branch
Tel: 81-3-6408-0950
Fax: 81-3-6408-0951
Tel: 82-2-527-4377
Fax: 82-2-527-4376
Semtech Limited (U.K.)
Semtech France SARL
Semtech Germany GmbH
Tel: 44-1794-527-600
Fax: 44-1794-527-601
Tel: 86-21-6391-0830
Fax: 86-21-6391-0831
Tel: 33-(0)169-28-22-00
Fax: 33-(0)169-28-12-98
Semtech International AG is a wholly-owned subsidiary of
Semtech Corporation, which has its headquarters in the U.S.A.
Tel: 49-(0)8161-140-123
Fax: 49-(0)8161-140-124
2006 Semtech Corp.
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