SM6702-27HB Datasheet (Nippon Precision Circuits Inc)

SM6702-27HB, PFM Step-up DC/DC Converter

Number S M 6 7 0 2 *××H A 1 2 3 S M 6 7 0 2 *××H B 1 3 2 Name VSS LX OUT Ground Switching pin Output (device supply pin) Description PACKAGE DIMENSIONS (Unit : mm) SM6702 *××HA(SOT23 *3) SM6702 *××HB(SOT89 *3) 4.5 ± 0.1 1.5 ± 0.1 0.4 ± 0.1 (5 ) 4.0 ±

SM6702 series NIPPON PRECISION CIRCUITS INC.

PFM Step-up DC/DC Converter OVERVIEW The SM6702 series are step-up DC/DC converter ICs, fabricated using NPC’s Molybdenum-gate CMOS process.

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

SM6702-27HB Features

* I I I I I I Power dissipation : 24 µW at VIN = 1.5 V, VOUT = 3.0 V, IOUT = 100 µA Start-up input voltage : 0.9 V (max) at RL = 30 kΩ Output voltage : 2.2 V to 3.3 V, available in 0.1 Vstep High efﬁciency : 85% at VIN = 1.5 V, VOUT = 3.0 V, IOUT = 1 mA Low ripple voltage Package : SOT23-3, SOT89-3