Data
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heet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2127
General Description
The AP2127 Series are positive voltage regulator ICs
fabricated by CMOS process.
The AP2127 Series have features of low dropout
voltage, low noise, high output voltage accuracy, and
low current consumption which make them ideal for
use in various battery-powered devices.
AP2127 has 1.0V, 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V,
3.3V, 4.2V, 4.75V, 5.2V fixed voltage versions and
0.8V to 5.5V adjustable voltage versions.
AP2127 series are available in SOT-23-5 Package.
Features
·
·
·
·
·
·
·
·
·
·
·
·
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Wide Operating Voltage: 2.5V to 6V
High Output Voltage Accuracy:
±2%
High Ripple Rejection:
68dB@ f=1kHz, 54dB@ f=10kHz
Low Standby Current: 0.1µA
Low Dropout Voltage: 170mV@300mA for
V
OUT
=3.3V, 140mV@300mA for V
OUT
=5.2V
Low Quiescent Current: 60µA Typical
Low Output Noise: 60µVrms@V
OUT
=0.8V
Short Current Limit: 50mA
Over Temperature Protection
Compatible with Low ESR Ceramic Capacitor:
1µF for C
IN
and C
OUT
Excellent Line/Load Regulation
Soft Start Time: 50µs
Auto Discharge Resistance: R
DS(ON)
=60Ω
Applications
·
·
·
Datacom
Notebook Computers
Mother Board
SOT-23-5
Figure 1. Package Type of AP2127
Oct. 2009 Rev. 1.3
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BCD Semiconductor Manufacturing Limited
Data
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300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2127
Pin Configuration
K Package
(SOT-23-5)
V
IN
GND
Shutdown
1
2
3
5
V
OUT
4
NC/ADJ
Figure 2. Pin Configuration of AP2127 (Top View)
Functional Block Diagram
SHUTDOWN
Shutdown
and
Logic Control
VIN
V
REF
MOS Driver
Current Limint
And
Thermal
Protection
VOUT
GND
Figure 3. Functional Block Diagram of AP2127 for Fixed Version
Oct. 2009 Rev. 1.3
2
BCD Semiconductor Manufacturing Limited
Data
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Preliminary Datasheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2127
Functional Block Diagram (Continued)
SHUTDOWN
Shutdown
and
Logic Control
VIN
V
REF
MOS Driver
Current Limint
And
Thermal
Protection
VOUT
ADJ
GND
Figure 4. Functional Block Diagram of AP2127 for Adjustable Version
Oct. 2009 Rev. 1. 3
3
BCD Semiconductor Manufacturing Limited
Data
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300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2127
Ordering Information
AP2127
Circuit Type
-
G1: Green
TR: Tape and Reel
Package
K: SOT-23-5
ADJ: ADJ Output
1.0: Fixed Output 1.0V
1.2: Fixed Output 1.2V
1.5: Fixed Output 1.5V
1.8: Fixed Output 1.8V
2.5: Fixed Output 2.5V
2.8: Fixed Output 2.8V
3.0: Fixed Output 3.0V
3.3: Fixed Output 3.3V
4.2: Fixed Output 4.2V
4.75: Fixed Output 4.75V
5.2: Fixed Output 5.2V
Package
Temperature Range
Part Number
AP2127K-ADJTRG1
AP2127K-1.0TRG1
AP2127K-1.2TRG1
AP2127K-1.5TRG1
AP2127K-1.8TRG1
GEH
GEG
GE1
GEP
GEQ
GER
GES
GHF
GET
GEU
GEZ
GEW
Marking ID
Packing Type
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
SOT-23-5
-40 to 85
o
C
AP2127K-2.5TRG1
AP2127K-2.8TRG1
AP2127K-3.0TRG1
AP2127K-3.3TRG1
AP2127K-4.2TRG1
AP2127K-4.75TRG1
AP2127K-5.2TRG1
BCD Semiconductor's products, as designated with "G1" suffix in the part number, are RoHS compliant and Green.
Oct. 2009 Rev. 1.3
4
BCD Semiconductor Manufacturing Limited
Data
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Preliminary Datasheet
300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2127
Absolute Maximum Ratings (Note 1)
Parameter
Input Voltage
Shutdown Input Voltage
Output Current
Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10sec)
Thermal Resistance
ESD (Human Body Model)
ESD (Machine Model)
Symbol
V
IN
V
CE
I
OUT
T
A
T
STG
T
LEAD
θ
JA
ESD
ESD
Value
6.5
-0.3 to V
IN
+0.3
450
150
-65 to 150
260
250
6000
250
Unit
V
V
mA
o
C
o
C
o
C
o
C/W
V
V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated
under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods
may affect device reliability.
Recommended Operating Conditions
Parameter
Input Voltage
Operating Junction Temperature Range
Symbol
V
IN
T
A
Min
2.5
-40
Max
6
85
Unit
V
o
C
Oct. 2009 Rev. 1. 3
5
BCD Semiconductor Manufacturing Limited
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