GM7230HV Datasheet, PDF (1/9 Pages) Gamma Microelectronics Inc. – Input voltage range up to 60V

GM7230HV
150KHz, 60V/3A STEP DOWN VOLTAGE
SWITCHING REGULATORS
Description
Features
GM7230HV series is designed to provide all the  3.3V, 5V, 12Vand Adjustable output
active function for a step-down (buck) switching
versions
regulator, and drives a maximum load current as
high as 3A line and load regulations.
GM7230HV is available in fixed output voltages

Adjustable version output voltage range
1.23V to 57V
of 3.3V, 5V, and a versatile Adjustable output
version.
 V_OUT accuracy is to ±2% under specified
input voltage the output load conditions
These regulators are simple to use and require 
minimum number of external components. The
features include internal frequency compensation

and a fixed-frequency oscillator.
The GM7230HV is high-efficiency replacements ^
for popular three-terminal linear regulators, and is
requiring a smaller heat sink or even no need

heat sink.
Input voltage range up to 60V
Requires only 4 external components with
High efficiency
TTL shutdown capability, low power
standby mode
Built-in thermal shutdown, current limit
protection
GM7230HV 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.
 Uses standard inductors
 150 kHz fixed frequency internal oscillator
GM7230HV operates at a switching frequency of
150 kHz which allowing smaller size filter
components than what would be needed with
lower frequency switching regulators.
GM7230HV series are available in a standard 5-
lead TO-220, and TO263 packages.
Application
Pre-regulator for linear regulators
High-efficiency step-down buck regulator
On-card/board switching regulators
Positive to negative converter (buck-boost)
LCD Monitors
Typical Application Circuits
Unregulated
DC Input
CIN
470μF
GM7230HV-5.0
1 V_IN
Feedback ⁴
Output 2
GND
3
ON/OFF
5
L1
68μH
D1
1N5824
5V
regulated
output,
COUT
470μF
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