AP2160KTR-G1 datasheet(7/10 Pages) BCDSEMI

Part #	AP2160KTR-G1

Description	Ultra Low Output Voltage Linear N-FET Controller

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Manufacturer	BCDSEMI [BCD Semiconductor Manufacturing Limited]

Direct Link	http://www.bcdsemi.com

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7 / 10 page

Preliminary Datasheet

Ultra Low Output Voltage Linear N-FET Controller

AP2160

Jan. 2012

Rev. 1. 0

BCD Semiconductor Manufacturing Limited

7

Function Description

1. Power-On-Reset

A Power-On-Reset (POR) circuit monitors input

voltages at VCC pin to prevent wrong logic controls.

The POR function initiates a soft-start process after

the supply voltages exceed input voltage UVLO

threshold during powering on. The POR function also

pulls low the POK pin regardless of the output

voltage when the VCC voltage falls below the input

voltage UVLO threshold minus input voltage UVLO

hysteresis.

2. Output Voltage Regulation

An error amplifier working with a temperature

compensated 0.5V reference and an output NMOS

regulates output to the preset voltage. The error

amplifier designed with high bandwidth and DC gain

provides very fast transient response and excellent

load regulation.

3. Under-Voltage Protection (UVP)

AP2160 monitors the voltage on FB pin after

soft-start process finishing. Therefore the UVP is

disabled during soft-start. When the voltage on FB

pin falls below the output voltage UVLO Threshold,

the UVP circuit shuts down the output immediately.

4. Thermal Shutdown

A thermal shutdown circuit limits the junction

temperature

of

AP2160.

When

the

junction

temperature exceeds 150°C, a thermal sensor turns

off the output NMOS, allowing the device to cool

down. The regulator regulates the output again

through initiation of a new soft-start cycle after the

junction temperature drops by 40°C.

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AP2160KTR-G1 Datasheet(PDF) 7 Page - BCD Semiconductor Manufacturing Limited

AP2160KTR-G1 Datasheet(HTML) 7 Page - BCD Semiconductor Manufacturing Limited

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