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PS7516 升压模块规格说明书

PS7516

The PS7516 is a high efficiency, fixed frequency 1MHz, current mode PWM boost DC/DC converter The converter is based on a fixed frequency, current When converter operation into discontinuous mode, The PS7516 is ava ●Fixed 1MHz Switching Frequency

● Low-Power Mode for Light Load Conditions ● ±2.0% Voltage Reference Accuracy

● PMOS Current Limit for Short Circuit Protection ● Low Quiescent Current

● Output Ripple under 200mV. (Scope Full Bandwidth)

● Fast Transient Response ● Built-In Soft Start Function

● Over-Temperature Protection with Auto Recovery ● Output Overvoltage Protection ●

Space-Saving SOT-23-6 Package

Applications

● Portable Power Bank ● Wireless Equipment ● Handheld Instrument ●

GPS Receiver

IN

1

.

Description

which could operate battery such as input voltage down to 2.5V. The converter output voltage can be adjusted to a maximum of 5.25V by an external resistor divider. Besides the converter includes a 0.08Ω N -channel MOSFET switch and 0.12Ω P-channel synchronous rectifier. So no external Schottky diode is required and could get better efficiency near 93%.

mode, pulse-width-modulation PWM controller that goes automatically into PSM mode at light load. the internal anti-ringing switch will reduce interference and radiated electromagnetic energy. ilable in a space-saving SOT-23-6 package for portable application.

Features

High Efficiency up to 96% (When Vin = 4.2V) ● Low R DS (ON) Integrated Power MOSFET ● NMOS 80mΩ / PMOS120mΩ

● Wide Input Voltage Range: 2.5V to 5.5V ● Pin Assignments

SOT -23-6

2

1

3

645LX IN GND OUT EN

FB

Fig ure 1. Pin Assignment of PS7516

Functional Pin Description

Pin Name Pin No. Pin Function

EN 4 Logic Controlled Shutdown Input. GND 2 Ground Pin.

LX 1 Power Switching Connection. Connect LX to the inductor and output rectifier. IN

6

Power Supply Input Pin.

OUT 5 Output of the Synchronous Rectifier. FB 3 Voltage Feedback Input Pin. High Efficiency up to 96%

深圳市百盛电子

189********

郑生

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