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APW7120, APW7120EK-TRL, APW7120-KE

Table of contents:
Info of APW7120
Info of APW7120EK-TRL
Info of APW7120-KE

APW7120, APW7120EK-TRL, APW7120-KE Selling Leads, Datasheet

MFG:APW Package Cooled:SOP-8 D/C:NN/A

APW7120, APW7120EK-TRL, APW7120-KE Picture

APW7120, APW7120EK-TRL, APW7120-KE Datasheet download

Five Points

Part Number: APW7120

MFG: APW

Package Cooled: SOP-8

D/C: NN/A

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APW7120 General Description

The APW7120 is a fixed 300kHz frequency, voltage mode, synchronous PWM controller. The device drives two low cost N-channel MOSFETs and is designed to work with single 5~12V or two supply voltage(s), providing excellent regulation for load transients.

The APW7120 integrates controls, monitoring and protection functions into a single 8-pin package to provide a low cost and perfect power solution.

A power-on-reset (POR) circuit monitors the VCC supply voltage to prevent wrong logic controls. An internal 0.8V reference provides low output voltage down to 0.8V for further applications. An built-in digital soft-start with fixed soft-start interval prevents the output voltage from overshoot as well as limiting the input current. The controller's over-current protection monitors the output current by using the voltage drop across the low-side MOSFET's RDS(ON), eliminating the need of a current sensing resistor. Additional under voltage and over voltage protections monitor the voltage on FB pin for short-circuit and over-voltage protections. The over-current protection cycles the soft-start function until 4 over-current events are counted.

Pulling and holding the voltage on OCSET pin below 0.15V with an open drain device shuts down the controller.

APW7120 Maximum Ratings

Symbol	Parameter	Rating	Unit
V_CC	VCC Supply Voltage (VCC to GND)	-0.3 ~ 16	V
V_BOOT	BOOT Voltage (BOOT to PHASE)	-0.3 ~ 16	V
	UGATE Voltage (UGATE to PHASE) <400nS pulse width >400nS pulse width	-5 ~ VBOOT+0.3 -0.3 ~ VBOOT+0.3	V
	LGATE Voltage (LGATE to GND) <400nS pulse width >400nS pulse width	-5 ~ VBOOT+0.3 -0.3 ~ VBOOT+0.3	V
	PHASE Voltage (PHASE to GND) <400nS pulse width >400nS pulse width	-10 ~ 30 -0.3 ~ 16	V
V_I/O	Input Voltage (OCSET, FB to GND)	-0.3 ~ 7	V
	Maximum Junction Temperature	150	ºC
T_STG	Storage Temperature	-65 ~ 150	ºC
T_SDR	Maximum Soldering Temperature, 10 Seconds	300	ºC
V_ESD	Minimum ESD Rating (Human Body Mode) (Note 2)	±2	KV

Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Note 2: The device is ESD sensitive. Handling precautions are recommen

APW7120 Features

· Operating with Single 5~12V Supply Voltage
or two Supply Voltages
· Drive Dual Low Cost N-Channel MOSFETs
- Adaptive Shoot-Through Protection
· Built-in Feedback Compensation
- Voltage-Mode PWM Control
- 0~100% Duty Ratio
- Fast Transient Response
· ±2% 0.8V Reference
- Over Line, Load Regulation and
Operating Temp.
· Programmable Over-Current Protection
- Using RDS(ON) of Low-Side MOSFET
· Hiccup-Mode Under-Voltage Protection
· 118% Over-Voltage Protection
· Adjustable Output Voltage
· Small Converter Size
- 300kHz Constant Switching Frequency
- Small SOP-8 Package
· Built-In Digital Soft-Start
· Shutdown Control using an External MOSFET
· Lead Free Available (RoHS Compliant)

APW7120 Typical Application

· Motherboard
· Graphics Card
· High Current, up to 20A, DC-DC Converters

APW7120 Connection Diagram

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