AIC1595 Datasheet, PDF (1/5 Pages) Analog Intergrations Corporation – 2A STEP-DOWN PWM REGULATOR

ADVANCED INFORMATION
AIC1595
2A STEP-DOWN PWM REGULATOR
SPEC NO: DS-1595-P1 03/23/00
! ^FEATURES
" Operating Input Voltage From 4.5V to 36V
" 2.5V, 3.3V, 5V , 12V and Adjustable Output Ver-
sion
" Adjustable Version Output Voltage Range , 1.25V
to 30V ± 4% max Over Line and Load Regulation
" Available in TO220-5 and TO263-5 Package
" Requires Only 4 External Components.
" 150KHz/300KHz Fixed Constant Frequency
" Low Power Standby Mode, IQ Typically 80µA
" TTL Shutdown Capability.
" Output Overvoltage Protection
" Current Limit and Thermal Shutdown Protection.
" 2A Guaranteed Output Current
! ^DESCRIPTION
The AIC1595 series are step-down monolithic
PWM regulators delivering 2A at fixed voltages of
2.5V , 3.3V, 5.0V , 12V and using a external di-
vider to adjust output voltage from 1.25V to 30V
with excellent line and load regulation.
Switching frequency up to 150KHz/300KHz are
achievable thus allowing smaller sized filter com-
ponents. Internal current limit and thermal shut-
down circuits provide protection from overloads. It
also provides output overvoltage and short pro-
tection under fault conditions.
! ^APPLICATIONS
" Simple High Efficiency Step-down regulator
" On-Card Switching regulators
" Fixed Voltage power supply for LCD Monitor
The internal precious reference combined with
voltage feedback loop provides optimum output
voltage accuracy and fast load transient response.
Packages available are in standard TO220-5 for
standard assembly and TO263-5 for SMD.
! ^{TYPICAL APPLICATION CIRCUIT}
V_IN
+
C1
1
IN
2
OUT
C2

^AIC1595 4
D1
SHDN ^FB
 GND
L1
+
C3
V_OUT
R1
R2
R1 short and R2 open for fixed
switching output version
2A Precision PWM DC/DC Regulator
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: [phone] FAX:[phone]
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