APL5523 Datasheet PDF – Dual Low Dropout Regulator

Part Number : APL5523

Function : Dual-Channel, 3.3V/500mA and 1.8V/300mA Linear Regulator

Package : SOP 8 Pin Type

Manufacturers : Anpec Electronics

Pinouts :

APL5523 datasheet

Pin Description

1. VOUT1 O VOUT1 output Voltage 3.3V. sources up to 500 mA.
2. VIN I Supply Voltage.
3. VIN I Supply Voltage.
4. VOUT2 O VOUT2 output Voltage 1.8V. sources up to 300 mA.
5. GND
.6 GND
7. GND
8. GND

General  Description :

The APL5523 is a dual low dropout regulator with output1 with 3.3V/0.5A and output2 with 1.8V/0.3A
output capability. In order to obtain lower dropout voltage and faster transient response, which is critical for low voltage applications, the APL5223 has been optimized. The dropout voltages are guaranteed at 0.6V at 0.5A for output1 and 0.9V at 0.3A for output 2. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures.


1. Fixed  Output Voltage :
(1)  VOUT1=3.3V/500mA
(2)  VOUT2=1.8V/300mA
2. Low  Dropout Voltage (Defined as the Minimum Input/Output  V oltage difference):
(1) Output  1  Dropout  V oltage : 0.6V  (at 500mA)
(2) Output  2  Dropout  V oltage : 0.9V  (at 300mA)
3. Stable with 4.7mF Output Capacitor(at VOUT1
4. Stable with 2.2mF Output Capacitor(at VOUT2)
5. Built-In Thermal Protection
6. Built-In Current-Limit Protection
7. Fast Transient Response
8. Short Setting Time
9. SOP-8 and SOP-8P Packages Available
10. Lead Free and Green Devices Available(RoHS  Compliant)


1. Desktop Computer
2. Networking Systems
3. Optical Data Storage Systems

Other data sheets within the file : APL5523K, APL5523KA

APL5523 Datasheet PDF Download

APL5523 pdf


APL5537 Datasheet PDF – Dropout Linear Regulator

Part Number : APL5537

Function : Dual Channel 300mA Low Dropout Linear Regulator

Package : TSOT-23-6A, TDFN 1.6×1.6

Manufacturers : Anpec Electronics

Pinouts :

APL5537 datasheet


General  Description :

The APL5537 is a dual channel low dropout linear regulator, which operates from 2.5V to 5.5V input  voltage and delivers up to 300mA output current at each channel. Typical dropout voltage is only 240mV at 300mA. The APL5537 with low quiescent current, high PSRR, and low noise is ideal for battery powered system appliances. Other features include logic-controlled  shutdown mode, over-temperature  protection, short-circuit current-limit, and current-limit protection to ensure specified output current. The APL5537 is available in the TSOT-23-6A and TDFN1.6×1.6-6 packages.


1. Dual Regulator Outputs
2. Low Dropout Voltage: Typical 240mV at 300m
3. Wide Input Voltage Range: 2.5V to 5.5V
4. Low Quiescent Current: Typical 58mA
5. High PSRR: 70dB at 1kHz
6. Low Shutdown Current: <1mA
7. Shutdown Function
8. Output Current-Limit Protection
9. Short-Circuit Current-Limit Protection
10. Over-Temperature Protection
11. Lead Free and Green Devices Available(RoHS Compliant)


1. Mobile Phone
2. GPS Navigation
3. Blue Tooth Headset

Other data sheets within the file : APL5537-7MCTI-TRG

APL5537 Datasheet PDF Download

APL5537 pdf