MP1530 – TRIPLE OUTPUT STEP-UP PLUS LINEAR REGULATORS FOR TFT BIAS
PIN FUNCTIONS (continued)
QFN TSSOP
Name Description
Pin #
Pin #
Positive Linear Regulator Output. GH is the output of the positive linear regulator. GH
14
12
GH
can supply as much as 20mA to the load. Bypass GH to GND with a 1μF or greater,
low-ESR, ceramic capacitor.
Positive Linear Regulator Input. IN3 is the input to the positive linear regulator. Drive
IN3 with a doubling, tripling, or quadrupling charge pump from SW. IN3 voltage can go
as high as 38V.
Power Ground. PGND is the source of the internal 250mΩ N-Channel MOSFET
switch. Connect PGND to GND as close to the MP1530 as possible.
15
13
14
IN3
16
PGND
Exposed No internal electrical connections. Solder it to the lowest potential (IN2 pin) plane
pad to reduce thermal resistance.
Pad
MP1530 Rev. 1.41
5/25/2011
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