AAT1341 Datasheet, PDF (1/16 Pages) List of Unclassifed Manufacturers – 2-CHANNEL SWITCHING REGULATOR

Advanced Analog Technology, Inc.
Details are subject to change without notice
AAT1341
2-CHANNEL SWITCHING REGULATOR
FEATURES
z Complete PWM Power Control Circuitry
z Under-Voltage Lockout (UVLO) Protection
z Open Drain Output
z Output Short Circuit Protection
z Low Dissipation Current 1.6mA
z Dead-Time Control 0 % to 100%
z Wide Operating Frequency
10kHz to 800kHz
z V_DD Range 4.0V to 14.0V
PIN CONFIGURATION
TOP VIEW
C_{t 1}
R_{t 2}
16 V_REF
15 SCP
NE1 3
14 NE2
IE1 ₄
13 IE2
OE1 5
12 OE2
DTC1 6
11 _DTC2
OUT1 7
GND ⁸
10 OUT2
9
V_DD
SOP-16PACKAGE
GENERAL DESCRIPTION
The AAT1341 provides an integrated two-channel
pulse-width-modulation (PWM) solution for the
power supply of DC-DC system; this device offers
system engineers the flexibility to tailor-make the
power supply circuitry for specific applications.
Each channel contains its own error amplifier,
PWM comparator, dead–time control (DTC), and
output driver. The under-voltage protection,
oscillator, short circuit protection and voltage
reference circuit are the common features of the two
channels.
Both channels of AAT1341 can be used for DC-DC
converter operations including step-up, step-down,
and inverting. Dead-time control can be set to
provide 0% to 100% dead-time through a resistive
divider network. Soft-start can be implemented by
paralleling the DTC resistor with a capacitor. Two
dead-time control inputs are assigned for CH1 and
CH2 individually, and dead-time control inputs can
be used to control on / off operation.
With a minimal number of external components, the
AAT1341 offers a simple and cost effective
solution.
–
–
– Advanced Analog Technology, Inc. –
Page 1 of 16
V1.0