AP133-SN [DIODES]
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR; 300mA，低静态电流，快速暂态低压差线性稳压器
| 型号： | AP133-SN |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | 300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR |
| 文件： | 总14页 (文件大小：965K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Description
Features
The AP133 is a 300mA, adjustable output voltage, low dropout
linear regulator. The device included pass element, error
amplifier, band-gap, current limit and thermal shutdown circuitry.
The device is turned on when EN pin is set to logic high level.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
300mA Low Dropout Regulator with EN
Very low IQ: 40µA
Wide input voltage range: 2V – 6V
Adjustable output: 1V – 5V
High PSRR: 65dB at 1kHz
The characteristics of low dropout voltage and less quiescent
current make it good for low power applications, for example,
battery powered devices. The typical quiescent current is
approximately 40μA from zero to maximum load.
Ultra-fast start-up time: 25µs
Stable with low ESR, 1µF ceramic output capacitor
Excellent Load/Line Transient Response
Low dropout: 350mV at 300mA
Current limit protection
Built-in current-limit and thermal-shutdown functions prevent IC
from damage in fault conditions.
Short circuit protection
The AP133 is available in SOT25 and DFN2020-6 (preview)
package.
Thermal shutdown protection
Ambient temperature range: -40ºC to 85°C
SOT25 and DFN2020-6 (Preview): Available in
“Green” Molding Compound (No Br, Sb)
Applications
•
•
•
•
•
Cellular Phones
Smart Phones, PDAs
MP3/MP4
Bluetooth head set
Low power application
Ordering Information
A P 1 3 3 - X X X
Packing
Package
Lead Free
G : Green
-7 : Taping
W : SOT25
SN : DFN2020-6
Note:
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Packaging
(Note 2)
SOT25
7” Tape and Reel
Device
Package Code
Quantity
Part Number Suffix
AP133-W
AP133-SN
W
SN
3000/Tape & Reel
3000/Tape & Reel
-7
-7
DFN2020-6
Note:
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP133 Rev. 2
1 of 14
MAY 2007
www.diodes.com
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Pin Assignment
(Top View)
(Top View)
IN
5
4
1
2
3
OUT
ADJ
1
6
5
4
EN
ADJ
NC
GND 2
GND
EN
3
OUT
IN
DFN2020-6 (Preview)
SOT25
Pin Descriptions
Pin Number
SOT25 DFN2020-6
Name
Description
IN
GND
EN
ADJ
NC
OUT
1
2
3
4
3
2
1
6
5
4
Voltage input pin. Bypass to ground through at least 0.1µF capacitor
Ground
Enable input, active high
Output feedback pin
No connection
5
Voltage output pin. Bypass to ground through 1µF ceramic capacitor
Functional Block Diagram
IN
OUT
Current Limit
and Thermal
Shutdown
Gate
Driver
EN
FB
0.8V
GND
AP133 Rev. 2
2 of 14
MAY 2007
www.diodes.com
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Typical Application Circuit
VIN
VOUT
IN
OUT
ADJ
AP133
GND
R1
R2
1uF
1uF
Enable
EN
⎛
⎞
R1
R2
⎜
⎟
⎟
VOUT = VREF 1+
⎜
⎝
⎠
Absolute Maximum Ratings
Symbol
Parameter
Ratings
Units
VIN
Input Voltage
OUT, ADJ, EN Voltage
Continuous Load Current
Operating Junction Temperature Range
Storage Temperature Range
7
VIN + 0.3
Internal Limited
-40 ~ 125
-65 ~150
610
V
V
T
T
°C
°C
mW
mW
°C
SOT25
DFN2020-6
PD
TJ
Power Dissipation (Note 3)
880
150
Maximum Junction Temperature
Note:
3. Ratings apply to ambient temperature at 25°C.
Recommended Operating Conditions
Symbol
Parameter
Min
2
0
Max
6
300
85
Unit
V
mA
°C
Input voltage
Output Current
VIN
IOUT
TA
Operating Ambient Temperature
-40
AP133 Rev. 2
3 of 14
www.diodes.com
MAY 2007
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Electrical Characteristics
(TA = 25oC, VIN = VOUT +1V, CIN = 1uF, COUT = 1uF, VEN = 2V, unless otherwise stated)
Symbol
IQ
ISHDN
ILEAK
VDropout
VREF
IADJ
Parameter
Input Quiescent Current
Input Shutdown Current
Input Leakage Current
Dropout Voltage
ADJ reference voltage
ADJ leakage
Output Voltage Accuracy
Test Conditions
IOUT = 0~300mA
VEN = 0V, IOUT = 0
VEN = 0V, OUT grounded
VOUT ≥ 1.5V, IOUT = 300mA
IOUT= 0
Min Typ Max Unit
40
60
1
1
⎯
⎯
⎯
μA
μA
μA
350 450 mV
0.8
V
μA
%
1
2
⎯
-2
VOUT
VIN = VOUT +1V to 5.5V,
Line Regulation
0.05
%/V
ΔVOUT /ΔVIN/V
IOUT = 1mA
Load Regulation
Start-up Time
PSRR
Short-circuit Current
Current limit
EN Input Logic Low Voltage
EN Input Logic High Voltage
EN Input leakage
Thermal shutdown threshold
Thermal shutdown hysteresis
IOUT from 1mA to 300mA
VEN = 0V to 2.0V, IOUT = 300mA
1kHz, IOUT = 0mA
-1
1
%
μs
dB
mA
mA
V
ΔVOUT /VOUT
tST
25
65
120
PSRR
ISHORT
ILIMIT
VIL
VIH
IEN
TSHDN
THYS
VIN = 5.0V, VOUT < 0.2V
400 600
VOUT = 3V, ROUT = 3Ω
0.4
1
1.4
-1
V
VEN = 0V or 5.5V
μA
°C
°C
145
20
Thermal
SOT25
197
Resistance
Junction-to-
Ambient
Thermal
Resistance
Junction-to-Case
oC/W
θJA
Device mounted on FR-4
substrate, 1"x1" 1oz copper,
single-sided PCB board
DFN2020-6
136
SOT25
45
oC/W
θJC
DFN2020-6
102
AP133 Rev. 2
4 of 14
www.diodes.com
MAY 2007
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Typical Performance Characteristics
Output Voltage vs. Temperature
Output Voltage vs. Temperature
3.3100
3.3050
3.3000
3.2950
3.2900
1.8200
1.8150
1.8100
1.8050
1.8000
VIN=5V, Vout=3.3V
VIN=3.3V, Vout=1.8V
-50.0
-25.0
0.0
25.0
50.0
75.0
100.0
125.0
-50.0
-25.0
0.0
25.0
50.0
75.0
100.0
125.0
Temperature (°C)
Temperature (°C)
Output Voltage vs. Input Voltage
Quiescent Current vs. Input Voltage
V
OUT=1.2V
2.0
60
55
50
45
40
35
30
IOUT=0mA
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
IOUT=300mA
IOUT=0mA
IOUT=150mA
2.0
3.0
4.0
5.0
6.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
Input Voltage (V)
Input Voltage (V)
Quiescent Current vs. IOUT
VOUT=2.8V
Quiescent Current vs. Temperature
60.00
55.00
50.00
45.00
40.00
35.00
30.00
50
45
40
35
30
Vin=3.3V
Vin=5V
VOUT=1.2V VIN=3.3V
VOUT=3.3V VIN=5.0V
0.00
50.00
100.00
150.00
200.00
250.00
300.00
-50.0
-25.0
0.0
25.0
50.0
75.0
100.0
125.0
IOUT (mA)
Temperature (°C)
AP133 Rev. 2
5 of 14
MAY 2007
www.diodes.com
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Typical Performance Characteristics (Continued)
Dropout Voltage vs. IOUT
VOUT=3.3V
ADJ Pin Voltage vs. Input Voltage
450
400
350
300
250
200
150
100
50
0.8020
0.8015
0.8010
0.8005
0.8000
0.7995
0.7990
25°C
90°C
-45°C
0
0.0
50.0
100.0
150.0
200.0
250.0
300.0
2.0
3.0
4.0
5.0
6.0
IOUT (mA)
Input Voltage (V)
Current Limit Protection
Current Limit vs. Temperature
800
750
700
650
600
550
500
Vin=3.3V, Vout=1.2V
Vin=5.0V, Vout=3.3V
-50
-30
-10
10
30
50
70
90
Temperature (°C)
Time (50us/div)
Short Circuit Protection
Short Circuit Protection
Time (1ms/div)
Time (2ms/div)
AP133 Rev. 1
6 of 14
APRIL 2007
www.diodes.com
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Typical Performance Characteristics (Continued)
Short Circuit Current vs. Input Voltage
Short Circuit Current vs. Temperature
150
Vin=3.3V, Vout=1.2V
Vin=3.3V, Vout=1.8V
Vin=5.0V, Vout=3.3V
150
140
130
120
110
100
90
140
130
120
110
100
90
80
70
2.0
3.0
4.0
5.0
6.0
80
-50
-30
-10
10
30
50
70
90
Input Voltage (V)
Temperature (°C)
Thermal Shutdown Protection
PSRR
-20.00
-30.00
-40.00
-50.00
-60.00
-70.00
-80.00
-90.00
100
1000
10000
100000
Frequency (Hz)
Time (20ms/div)
Line Transient Response
Line Transient Response
Time (20us/div)
Time (20us/div)
AP133 Rev. 2
7 of 14
MAY 2007
www.diodes.com
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Typical Performance Characteristics (Continued)
Line Transient Response
Line Transient Response
Time (20us/div)
Time (20us/div)
Load Transient Response
Load Transient Response
Time (100us/div)
Time (100us/div)
Load Transient Response
Load Transient Response
Time (20us/div)
Time (100us/div)
AP133 Rev. 2
8 of 14
MAY 2007
www.diodes.com
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Typical Performance Characteristics (Continued)
Start-up Time
Start-up Time
Time (5us/div)
Time (5us/div)
Start-up Time
Start-up Time
Time (5us/div)
Time (5us/div)
AP133 Rev. 2
9 of 14
MAY 2007
www.diodes.com
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Application Note
Input Capacitor
ON/OFF Input Operation
A1μF ceramic capacitor is recommended to connect between
VIN and GND pins to decouple input power supply glitch and
noise. The amount of the capacitance may be increased
without limit. This input capacitor must be located as close as
possible to the device to assure input stability and less noise.
For PCB layout, a wide copper trace is required for both VIN and
The AP133 is turned on by setting the EN pin high, and is
turned off by pulling it low. If this feature is not used, the EN pin
should be tied to IN pin to keep the regulator output on at all
time. To ensure proper operation, the signal source used to
drive the EN pin must be able to swing above and below the
specified turn-on/off voltage thresholds listed in the Electrical
Characteristics section under VIL and VIH.
GND.
A lower ESR capacitor allows the use of less
capacitance, while higher ESR type require more capacitance.
Current Limit Protection
Output Capacitor
When output current at OUT pin is higher than current limit
threshold, the current limit protection will be triggered and
clamp the output current to approximately 600mA to prevent
over-current and to protect the regulator from damage due to
overheating.
The output capacitor is required to stabilize and help transient
response for LDO. The AP133 is stable with very small ceramic
output capacitors. The recommended capacitance is from 1μF
to 4.7μF, Equivalent Series Resistance (ESR) is from 10mΩ to
100mΩ, and temperature characteristics is X7R or X5R. Higher
capacitance values help to improve load/line transient
response. The output capacitance may be increased to keep
low undershoot/overshoot. Place output capacitor as close as
possible to OUT and GND pins, and keep the leads as short as
possible.
Short Circuit Protection
When OUT pin is short-circuit to GND or OUT pin voltage is
less than 200mV, short circuit protection will be triggered and
clamp the output current to approximately 120mA. This feature
protects the regulator from over-current and damage due to
overheating.
Adjustable Operation
The AP133 provides output voltage from 1.0V to 5.0V through
external resistor divider as shown below.
Thermal Shutdown Protection
Thermal protection disables the output when the junction
temperature rises to approximately +145°C, allowing the device
to cool down. When the junction temperature reduces to
approximately +125°C the output circuitry is enabled again.
Depending on power dissipation, thermal resistance, and
ambient temperature, the thermal protection circuit may cycle
on and off. This cycling limits the heat dissipation of the
regulator, protecting it from damage due to overheating.
VIN
AP133
VOUT
IN
OUT
ADJ
COUT
CIN
R1
R2
Enable
EN
GN
D
Ultra Fast Start-up
After enabled, the AP133 is able to provide full power in as little
as tens of microseconds, typically 25µs, without sacrificing low
ground current. This feature will help load circuitry move in and
out of standby mode in real time, eventually extend battery life
for mobile phones and other portable devices.
The output voltage is calculated by:
⎛
⎞
R
1
Fast Transient Response
⎜
⎟
⎟
VOUT =VREF 1+
⎜
R2
Fast transient response LDOs can also extend battery life.
TDMA-based cell phone protocols such as Global System for
Mobile Communications (GSM) have a transmit/receive duty
factor of only 12.5 percent, enabling power savings by putting
much of the baseband circuitry into standby mode in between
transmit cycles. In baseband circuits, the load often transitions
virtually instantaneously from 100µA to 100mA. To meet this
load requirement, the LDO must react very quickly without a
large voltage droop or overshoot — a requirement that cannot
be met with conventional, general-purpose LDOs.
⎝
⎠
Where VREF=0.8V (the internal reference voltage)
Rearranging the equation will give the following that is used for
adjusting the output to a particular voltage:
⎛
⎞
VOUT
VREF
⎜
⎜
⎟
⎟
R = R2
−1
1
⎝
⎠
To maintain the stability of the internal reference voltage, R2
need to be kept smaller than 250kΩ.
The AP133’s fast transient response from 0 to 300mA provides
stable voltage supply for fast DSP and GSM chipset with fast
changing load.
No Load Stability
Small Overshoot and Undershoot
Other than external resistor divider, no minimum load is
required to keep the device stable. The device will remain
stable and regulated in no load condition.
The AP133 has small and controlled overshoot and undershoot
in load and line transitions. This helps to protect supplied circuit
from damage and operation error caused by glitches. This
feather also permits the usage of small value output decoupling
capacitor with AP133.
AP133 Rev. 2
10 of 14
www.diodes.com
MAY 2007
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Low Quiescent Current
Cellular phone baseband internal digital circuits typically
operate from 1.8V to 2.6V. When the Li+ battery voltage falls to
3.2-3.3V, most phones shut off, giving at least 500-600mV of
headroom for the baseband digital LDO, so dropout is not
critical. Output noise and the PSRR are not critical specs for
the digital circuits. Nonetheless, this supply requires low
quiescent current at light loads because this LDO stays on at
all times. Figure below shows how the digital supply current of
a representative GSM chipset core varies as a function of time.
In the standby mode, the microprocessor consumes only
around 200µA. Since the phone stays in standby for the
longest percentage of time, using a 40µA quiescent current
LDO, instead of 140µA, saves 100µA and extends the standby
time by 340µA/240µA, or 1.417 times.
The baseband internal analog circuit is typically 2.4V-3.0V, and
it requires 200-600mV dropout. This LDO is on all the time, so it
requires low quiescent current as well. The cellular phone
real-time clock LDO needs a very low quiescent current, since
this LDO is on all the time even though the handset is powered
off.
The AP133, consuming only around 40µA for all input range
and output loading, provides great power saving in portable
and low power applications.
Wide Output Range
The AP133, with a wide output range of 1.0V to 5.0V, provides
a versatile LDO solution for many portable applications.
High PSRR
The RF circuit consists of receive and transmit sections, which
typically require 2.6V-3.0V supply voltage. The RF circuits such
as LNA (low-noise amplifier), up/down-converter, mixer, PLL,
VCO, and IF stage, require low noise and high PSRR LDOs.
The temperature-compensated crystal oscillator circuit requires
very high PSRR at RF power amplifier burst frequency. For
instance, minimum 65dB PSRR at 217Hz is recommended for
the GSM handsets.
In order to provide good audio quality, the audio power supply
for hand-free, game, MP3, and multimedia applications in
cellular phones, require low-noise and high PSRR at audio
frequency range (20Hz-20kHz).
The AP133, with PSRR of 70dB at 1kHz in best case, is
suitable for some of these applications that require high PSRR.
AP133 Rev. 2
11 of 14
www.diodes.com
MAY 2007
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Marking Information
(1) SOT25
(Top View)
5
1
4
Y : Year: 0~9
M :Month A~L
M X
XX Y
NB:AP133
X: G : Green
2
3
(2) DFN2020-6 (Preview)
(Top View)
XX : NB : AP133
XX
Y : Year 0~9
M : Month A~L
YM X
.
X : Internal code A~Z: Green
AP133 Rev. 2
12 of 14
MAY 2007
www.diodes.com
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Package Information (All Dimensions in mm)
(1) Package Type: SOT25
(2) Package Type: DFN2020-6 (Preview)
Marking
0.05 C
0.08 C
(Active area depth)
Seating plane
C
1.95/2.075
A
B
1.45/1.65
0.15 C
2x-
0.65nom.
0.2/0.3
0.05
M C A B
Pin#1 ID
Bottom View
AP133 Rev. 2
13 of 14
www.diodes.com
MAY 2007
© Diodes Incorporated
AP133
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agreeto hold DiodesIncorporatedand all the companieswhose productsare represented onour website, harmlessagainst all damages.
LIFE SUPPORT
Diodes Incorporated productsare notauthorizedfor use ascriticalcomponentsin lifesupportdevices or systemswithout theexpressed written approval ofthe
PresidentofDiodesIncorporated.
AP133 Rev. 2
14 of 14
MAY 2007
www.diodes.com
© Diodes Incorporated
相关型号：
©2020 ICPDF网 联系我们和版权申明