A7596
DC-DC CONVERTER/ BUCK (STEP-DOWN)
150KHz, 3A PWM BUCK DC-DC CONVERTER
AiT Semiconductor Inc.
www.ait-ic.com
DESCRIPTION
FEATURES
The A7596 series of regulators are monolithic
integrated circuits that provide all the active functions
for a step-down (buck) switching regulator, capable of
driving a 3A load with excellent line and load
regulation. These devices are available in fixed output
voltage of 5V and adjustable output version.
5V and adjustable output versions
Adjustable version output voltage range 1.23V
to 37V
Input voltage range up to 40V
Guaranteed 3A output current
150KHz fixed frequency internal oscillator
Built-in thermal shutdown and current limit
protection
The A7596 operates at a switching frequency of
150KHz thus allowing smaller sized filter components
than what would be needed with lower frequency
switching regulators.
Available in TO-263-5 Package
APPLICATION
Fixed voltage power supply for LCD monitor
Other features include a guaranteed ±3% tolerance
on output voltage under specified input voltage and
output load conditions, and ±15% on the oscillator
frequency. External shutdown is included, featuring
typically 100μA standby current.
and LCD TV
On-Card switching regulation
Simple high efficiency Step-down regulator
TYPICAL APPLICATION
The A7596 is available in TO-263-5 package.
ORDERING INFORMATION
Package Type
Part Number
A7596S5R-XXX
VOUT= 1.23V x (1+ R1/R2), CIN = 100μF, Aluminum Electrolytic;
COUT = 220μF, 25V, Aluminum Electrolytic; D1 = Schottky, 5A/40V;
L1 = 33μH
A7596S5VR-XXX
A7596S5U-XXX
A7596S5VU-XXX
TO-263-5
S5
Figure 1 Adjustable Output Voltage
XXX: Output Voltage
050=5.0V; ADJ=Adjustable
U = Tube
Note
R: Tape & Reel
CIN = 100μF, Aluminum Electrolytic; COUT = 220μF, 25V,
Aluminum Electrolytic; D1 = Schottky, 5A/40V; L1 = 33μH
V: Halogen free Package
Figure 2 Fixed Voltage Regulator:
AiT provides all RoHS products
Suffix ꢀ V ꢀ means Halogen free Package
REV1.2
- MAY 2009 RELEASED, MAR 2015 UPDATE -
- 1 -
AITSEMI [ AiT Semiconductor ]
