Diodes AP2129 User Manual

Data Sheet

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2129

General Description

The AP2129 is a 300mA, positive Voltage regulator
ICs fabricated by CMOS process. The AP2129
provides two kinds of output voltage operation modes
for setting the output voltage. Fixed output voltage
mode senses the output voltage on V

output voltage mode needs two resistors as a voltage
divider

The AP2129 series have features of low dropout
voltage, low noise, high output voltage accuracy, and
low current consumption which
use in various battery-powered devices.

AP2129 has 1.0V, 1.2V, 1.8V, 2.6V, 2.8V, 3.0V and

3.3V fixed voltage version and 0.8V to 4.5V adjustable
voltage version.

The AP2129 series are available in DFN-1.5x2-6
(1.0V, 1.2V, 1.8V, 2.6V, 2.8V, 3.0V, 3.3V) and SOT-23­5 (1.0V, 1.2V, 3.3V, ADJ) packages.

make them ideal for

, adjustable

OUT

Features

· Wide Operating Voltage: 1.8V to 6V

· High Output Voltage Accuracy: ±2%

· High Ripple Rejection:

65dB@ f=1kHz, 45dB@ f=10kHz

· Low Standby Current: 0.1μA

· Low Quiescent Current: 60μA Typical

· Low Output Noise: 60μVrms

· Short Current Limit: 50mA

· Over Temperature Protection

· Compatible with Low ESR Ceramic Capacitor:

1μF for C

· Excellent Line/Load Regulation

Soft Start Time: 50μs

·

· Auto Discharge Resistance: R

and C

IN

OUT

DS(ON)

=60Ω

Applications

· Datacom

· Notebook Computers

· Mother Board

DFN-1.5x2-6

Figure 1. Package Type of AP2129

Sep. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing Limited

1

SOT-23-5

Data Sheet

1

2

34

5

Pin 1 Mark

1

2

34

5

6

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2129

Pin Configuration

DN Package

(DFN-1.5x2-6)

V

IN

GND

Shutdown

Pin Description

Pin Number

DFN-1.5x2-6 SOT-23-5

V

OUT

NC

NC

GND

V

IN

Figure 2. Pin Configuration of AP2129 (Top View)

Pin Name Function

K Package

(SOT-23-5)

ADJ/NCShutdown

V

OUT

13V

IN

Input Voltage

2 2 GND Ground

3 1 Active High Enable Input Pin. Logic high=enable, logic low=shut-

Shutdown

down

4, 5 NC No Connection

5 ADJ/NC Adjust Output for ADJ version/No Connection for Fixed Version

64V

OUT

Regulated Output Voltage

Sep. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing Limited

2

Data Sheet

UVLO &

Shutdown Logic

Thermal

Shutdown

Foldback

Current Limit

V

REF

GND

Shutdown

ADJ

V

OUT

V

IN

3MΩ

UVLO &

Shutdown Logic

Thermal

Shutdown

Foldback

Current Limit

V

REF

GND

Shutdown

NC

V

OUT

V

IN

3MΩ

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2129

Functional Block Diagram

Figure 3. Functional Block Diagram of AP2129

Sep. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing Limited

3

Data Sheet

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2129

Ordering Information

AP2129 -

Circuit Type

G1: Green

TR: Tape and Reel

Package

K: SOT-23-5
DN: DFN-1.5x2-6

ADJ: ADJ Output

1.0: Fixed Output 1.0V

1.2: Fixed Output 1.2V

1.8: Fixed Output 1.8V

2.6: Fixed Output 2.6V

2.8: Fixed Output 2.8V

3.0: Fixed Output 3.0V

3.3: Fixed Output 3.3V

Package Temperature Range Part Number Marking ID Packing Type

AP2129K- ADJTRG1 GEJ Tape & Reel

SOT-23-5

-40 to 85

o

C

AP2129K-1.0TRG1 GEK Tape & Reel

AP2129K-1.2TRG1 GEL Tape & Reel

AP2129K-3.3TRG1 GEM

AP2129DN-1.0TRG1 LA

Tap e & Reel

Tap e & Reel

AP2129DN-1.2TRG1 MA

AP2129DN-1.8TRG1 LB

DFN-1.5x2-6

BCD Semiconductor's products, as designated with "G1" suffix in the part number, are RoHS compliant and Green.

-40 to 85

o

C

AP2129DN-2.6TRG1 MB

AP2129DN-2.8TRG1 LC

AP2129DN-3.0TRG1 MC

AP2129DN-3.3TRG1 LD

Tap e & Reel

Tap e & Reel

Tap e & Reel

Tap e & Reel

Tap e & Reel

Tap e & Reel

Sep. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing Limited

4

Data Sheet

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2129

Absolute Maximum Ratings (Note 1)

Parameter Symbol Value Unit

Input Voltage V

Shutdown Input Voltage V

Output Current I

Junction Temperature T

Storage Temperature Range T

Lead Temperature (Soldering, 10sec) T

Thermal Resistance (Junction to Ambient)

IN

CE

OUT

J

STG

LEAD

θ

JA

DFN-1.5x2-6 100

6.5 V

-0.3 to VIN+0.3 V

450 mA

150

-65 to 150

260

o

C/W

o

C

o

C

o

C

SOT-23-5 250

ESD (Human Body Model) ESD 6000 V

ESD (Machine Model) ESD 200 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 Symbol Min Max Unit

Input Voltage V

Operating Ambient Temperature Range T

IN

A

5

1.8 6 V

-40 85

BCD Semiconductor Manufacturing LimitedSep. 2012 Rev. 1. 6

o

C