150KHz震荡频率，2A电流，40V耐压，输入电压范围1.25-37V，输出电压Adj方式，拥有SO8、SOP8小封装，适用于汽车电子、消费电子等狭小的使用空间，并具有更好的性价比。

Description
GM7109 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 2A line and load regulations. GM7109 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.
The GM7109 is high-efficiency replacements for
popular three-terminal linear regulators, and is
requiring a smaller heat sink or even no need
heat sink.
GM7109 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.
GM7109 operates at a switching frequency of
150 kHz which allowing smaller size filter
components than what would be needed with
lower frequency switching regulators.
GM7109 series are available in a standard 8-lead
SO package or 8 lead SO package with heat
sink.
Features
Standard SOP8 & PSOP8 package
3.3V, 5V, and Adjustable output versions
Adjustable version output voltage range
1.23V to 37V
VOUT uracy is to ±2% under specified
input voltage the output load conditions
Input voltage range up to 40V
Requires only 4 external components with
High efficiency
TTL shutdown capability, low power
standby mode
Built-in thermal shutdown, current limit
protection
Uses standard inductors
150 kHz fixed frequency internal oscillator