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.
SOP-8
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 μA 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.
DIP-8
*Pb-free plating product number:
FEATURES
*5V at 200mA from two cells.
UT2306L/UT2306L-3.3V/UT2306L-5.0V
*10μA quiescent current in shutdown.
APPLICATIONS
*Operates with VIN as low as1.5V
*2-,3-,or 4-cell to 5V or 3.3V step-up
*Low battery detector active in shutdown
*Low switch VCESAT:370mV at 1A typical.
*120μA quiescent current in active mode.
*Portable instruments
*Bar code scanners
*Palmtop computers
*Diagnostic medical instrumentation.
*Personal data communicators/computers.
*Switching frequency up to 300kHz
*Programmable peak current with one resistor.
.
PIN CONFIGURATION
LBI
LBO
VIN
1
2
3
4
8
7
6
5
FB(SENSE)*
SHDN
ILI M
GND
SW
UTC UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R103-029,A