UT2306-3.3V Просмотр технического описания (PDF) - Unisonic Technologies

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UT2306-3.3V

MICROPOWER DC/DC CONVERTERS WITH LOW-BATTERY DETECTOR ACTIVE IN SHUTDOWN

Unisonic Technologies 

UTC UT2306/UT2306-3.3V/UT2306-5.0V

LINEAR INTEGRATED CIRCUIT

MICROPOWER DC/DC

CONVERTERS WITH

LOW-BATTERY DETECTOR

ACTIVE IN SHUTDOWN

DESCRIPTION

The UTC UT2306 is a micropower step-up DC/DC

converter ideal for use in small, low voltage,

battery-operated systems. The devices operate from a

wide input supply range of 1.5V to 8V.

The UTC UT2306-3.3 and UT2306-5.0 generate

regulated outputs of 3.3V and 5V and the adjustable

UT2306 can deliver output voltages up to

25V.Quiescent current,120 μ A in active mode,

decreases to just 10 μ A in shutdown with the

low-battery detector still active. Peak switch current,

internally set at 1A,can be reduced by adding a single

resistor from the ILIM pin to ground. The high speed

operation of the UTC UT2306 allows the use of small,

surface-mountable inductors and capacitors.

FEATURES

*5V at 200mA from two cells.

*10μA quiescent current in shutdown.

*Operates with VIN as low as1.5V

*Low battery detector active in shutdown

*Low switch VCESAT:370mV at 1A typical.

*120μA quiescent current in active mode.

*Switching frequency up to 300kHz

*Programmable peak current with one resistor.

.

SOP-8

DIP-8

*Pb-free plating product number:

UT2306L/UT2306L-3.3V/UT2306L-5.0V

APPLICATIONS

*2-,3-,or 4-cell to 5V or 3.3V step-up

*Portable instruments

*Bar code scanners

*Palmtop computers

*Diagnostic medical instrumentation.

*Personal data communicators/computers.

PIN CONFIGURATION

LBI 1

LBO 2

VIN 3

SW 4

8 FB(SENSE)*

7 SHDN

6 IL I M

5 GND

UTC UNISONIC TECHNOLOGIES CO., LTD. 1

QW-R103-029,A

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