Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SO-8EP-package-image.png

Back to Inactve Datasheet Archive

AP65352 (NRND)

NRND = Not Recommended for New Design

3A, 18V, 650KHZ ADAPTIVE COT STEP-DOWN CONVERTER

Datasheet

Contact Sales

Description

The AP65352 is an adaptive constant on-time mode synchronous buck converter providing high efficiency, excellent transient response and high DC output accuracy for low-voltage regulation in digital TV and monitor.

The constant-on-time control scheme handles wide input/output voltage ratios and provides low external component count. The internal proprietary circuit enables the device to adopt both low equivalent series resistance (ESR) output capacitors, such as
SP-CAP or POSCAP and ultra-low ESR ceramic capacitors.

The AP65352 features programmable soft-start, UVLO, OTP, high voltage tolerance EN pin and OCP to protect the circuit.

This IC is available in SO-8EP package.

Feature(s)

Fixed Frequency Emulated Constant On-time Control
Good Stability Independent of the Output Capacitor ESR
Fast Load Transient Response
Synchronous Rectification: 90mΩ Internal High-side Switch and 57mΩ Internal Low-side Switch
Wide Input Voltage Range: 4.5V to 18V
Output Voltage Range: 0.76V to 6V
3A Continuous Output Current
650kHz Switching Frequency
Built-in Over Current Limit
High Voltage Tolerance EN Pin
Built-in Thermal Shutdown Protection
Programmable Soft-start
Pre-biased Start-up

Application(s)

Point of Load Power

Product Specifications

Product Parameters

Efficiency (%)	92
Frequency Typ (Hz)	650
HS RDS(ON) (mΩ)	90
LS RDS(ON) (mΩ)	57
MaximumInput Voltage (V)	18
MinimumInput Voltage (V)	4.5
Output Current (mA)	3
Output Voltage (V)	0.76 to 6
Quiescent Current Typ (mA)	0.6
Shutdown Current Typ (µA)	1
Type	Buck

Technical Documents

Recommended Soldering Techniques

TN1.pdf