UTC BA9741
LINEAR INTEGRATED CIRCUIT
TWO-CHANNEL SWITCHING
REGULATOR CONTORLLER
DESCRIPTION
The UTC BA9741 is a two-channel switching
regulator controllers that use the PWM method.
It can be used for DC to DC conversion for step-up,
step-down, and inverting. The IC comes in a compact
package, making it ideal for use in portable equipment.
SOP-16
FEATURES
*High-accuracy reference voltage circuit (±1%).
*Time-latch, short-circuit protection circuit.
*Miss-operation prevention circuit for low-voltage input
*Reference voltage with output (2.5V)
*Rest period adjustment is possible over the entire duty
*range.
TSSOP-16
APPLICATION
*DC/DC converters for video cameras and notebook
computers etc.
DIP-16
PIN CONFIGURATIONS
CT
RT
1
2
16
15
VREF
SCP
ERROR
AMPLIFIER 2
NON1
3
ERROR
AMPLIFIER 1
INV1
4
FB1
DT1
OUT1
GND
14
NON2
13
INV2
12
11
10
9
FB2
DT2
OUT2
Vcc
5
6
7
8
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R103-017,B