LC-32SH130K (serv.man8). Circuit Descriptions - Sharp TV Service Manual (repair manual). Page 38

The MP2012 is a fully integrated, internally compensated 1.2MHz fixed frequency PWM step-down 

converter. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) Battery, 
with an input range from 2.7V to 6V. The MP2012 can provide up to 1.5A of load current with output voltage 

as low as 0.8V. It can also operate at 100% duty cycle for low dropout applications. With peak current mode 

control and internal compensation, the MP2012 is stable with ceramic capacitors and small inductors. Fault 
condition protection includes cycle-by-cycle current limiting and thermal shutdown.



2.7-6V Input Operation Range



Output Adjustable from 0.8V to VIN



1μA Max Shutdown Current.



Up to 95% Efficiency



100% Duty Cycle for Low Dropout



Applications



1.2MHz Fixed Switching Frequency



Stable with Low ESR Output Ceramic



Capacitors



Thermal Shutdown



Cycle-by-Cycle Over Current Protection



Short Circuit Protection



Available in 6-pin 3x3mm QFN

1

FB

Feedback input. An external resistor divider from the output 
to GND, tapped to the FB pin sets the output voltage.

2

GND, Exposed 

Pad

Ground pin. Connect exposed pad to ground plane for 

proper thermal performance.

3

SW

Switch node to the inductor.

4

PVIN

Input supply pin for power FET.

5

VIN

Input Supply pin for controller. Put small decoupling 

ceramic near this pin.

6

EN

Enable input, “High” enables MP2012. EN is pulled to GND 
with 1Meg internal resistor.

17.1

17.2

17.3