SM6702 查看數據表（PDF） - Nippon Precision Circuits

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SM6702

PFM Step-up DC/DC Converter

Nippon Precision Circuits  

NIPPON PRECISION CIRCUITS INC.

SM6702 series

PFM Step-up DC/DC Converter

OVERVIEW

The SM6702 series are step-up DC/DC converter ICs, fabricated using NPC’s Molybdenum-gate CMOS pro-

cess. They incorporate reference voltage source, error amplifier, oscillator, start-up circuit, PFM (Pulse Fre-

quency Modulation) control circuit into a single chip. The only external components required are a Coil, Diode

and output smoothing capacitors to form a step-up DC/DC converter. They employ PFM voltage control cir-

cuits to achieve high efficiency, stable constant-voltage output.

FEATURES

I Power dissipation : 24 µW at VIN = 1.5 V, VOUT = 3.0 V, IOUT = 100 µA

I Start-up input voltage : 0.9 V (max) at RL = 30 kΩ

I Output voltage : 2.2 V to 3.3 V, available in 0.1 Vstep

I High efficiency : 85% at VIN = 1.5 V, VOUT = 3.0 V, IOUT = 1 mA

I Low ripple voltage

I Package : SOT23-3, SOT89-3

APPLICATIONS

I PDA, Mobile IT equipment

I Digital Stil Camera

I Pager

I Constant-voltage sources for battery-operated equipment

I Local voltage sources

ORDERING INFORMATION

Device

Output voltage1

SM6702-33HB

3.3 V

SM6702-30HA

3.0 V

SM6702-30HB

3.0 V

SM6702-27HA

2.7 V

SM6702-27HB

2.7 V

SM6702-24HA

2.4 V

1. Stepwise setting with a step of 0.1V in the range of 2.2V to 3.3V is available.

Package

SOT89-3

SOT23-3

SOT89-3

SOT23-3

SOT89-3

SOT23-3

NIPPON PRECISION CIRCUITS—1

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