GM2576HV Datasheet, PDF (1/8 Pages) Gamma Microelectronics Inc. – Standard ESOP8 package is available

GM2576HV
60V/3A STEP DOWN VOLTAGE
SWITCHING REGULATORS
Description
Features
GM2576HV series is designed to provide all the 
active function for a step-down (buck) switching
regulator, and drives a maximum load current as

high as 3A line and load regulations.

GM2576HV is available in fixed output voltages
of 3.3V, 5V, and a versatile Adjustable output
version.

These regulators are simple to use and require ^
minimum number of external components. The
features include internal frequency compensation 
and a fixed-frequency oscillator.
Standard ESOP8 package is available
3.3V, 5V, and Adjustable output versions
Adjustable version output voltage range
1.23V to 57V
Input voltage range up to 60V
Requires only 4 external components with
High efficiency
TTL shutdown capability, low power
standby mode
The GM2576HV is high-efficiency replacements 
for popular three-terminal linear regulators, and is
requiring a smaller heat sink or even no need
heat sink.

GM2576HV performs well with standard

inductors from most of manufacturers, and
simplifying the design of switch-mode power
supplies. External shutdown is included with 80
µA (typical) standby current. The output switch
has cycle-by-cycle current limiting as well as
thermal shutdown for full protection under fault
conditions.
Built-in thermal shutdown, current limit
protection
Uses standard inductors
52 kHz fixed frequency internal oscillator
GM2576HV operates at a switching frequency of
52 kHz which allowing smaller size filter
components than what would be needed with
lower frequency switching regulators.
GM2576HV series are available in a standard 8
lead SO package with heat sink
Application
Pre-regulator for linear regulators
High-efficiency step-down buck regulator
On-card/board switching regulators
Positive to negative converter (buck-boost)
Typical Application Circuits
7V – 60V
Unregulated
DC Input
CIN
100μF
GM2576HV-5.0
1 _VIN
FB ³
Output 2
ON/OFF GND
4
5, 6, 7, 8
L1
100μH
5V
regulated
output,
D1
MBR360
COUT
680μF
1