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MP2158GQH Datasheet(PDF) 7 Page - Monolithic Power Systems

Part # MP2158GQH
Description  1A, 6V, 1.5MHz, 17A IQ, COT Synchronous Step Down Switcher In Ultra-small 2x1.5mm QFN
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2158GQH Datasheet(HTML) 7 Page - Monolithic Power Systems

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MP2158 – 1A, 6V, 1.5MHz SYNCHRONOUS STEP-DOWN SWITCHER
MP2158 Rev. 1.0
www.MonolithicPower.com
7
10/10/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
PIN FUNCTIONS
Pin #
Name Description
8
PG
Power Good Indicator. The output of this pin is an open drain with internal pull up resistor
to IN. PGOOD is pulled up to IN when the FB voltage is within 10% of the regulation
level, if FB voltage is out of that regulation range, it is LOW.
7
VIN
Supply Voltage. The MP2158 operates from a +2.5V to +6V unregulated input. C1 is
needed to prevent large voltage spikes from appearing at the input.
6
SW
Switch Output
5
PGND Power ground
4
OUT
Input sense pin for output voltage
3
AGND Analogy ground for internal control circuit
2
FB
Feedback pin. An external resistor divider from the output to GND, tapped to the FB pin,
sets the output voltage.
1
EN
On/Off Control


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