Datasheet

LXDC55KAAA-205
Micro DC-DC converter
2
Dec 2014
4. Mechanical Details
4-1 Outline
Unit:mm
Mark Dimension Mark Dimension
L 5.0 +/- 0.2 e 1.1
W 5.7 +/- 0.2 f 0.6
T 2.1 MAX g 0.35
a 0.25 h 0.6
b 0.7 i 0.35
c 0.4 j 1.0
d 0.8
4-2. Pin Function
Pin No. Symbol I/O Description
1 EN Input
This is the ON/OFF control pin of the device. The device is in
shutdown when the voltage to this pin is below 0.4V. Pulling this pin
above 1.0V enables the device with soft start. This pin should not be
left floating. This pin is pulled down to GND with 400kohm resistor.
EN=H: Device ON, EN=L: Device OFF
4,5 Vin Input Vin pin supplies current to the LXDC55K internal regulator.
6,12 GND - Ground pin
7,8 Vout Output
Regulated voltage output pin.
Apply output load between this pin and GND
10 PG Output
Power good voltage output pin (Open drain). This is to indicate
whether the output voltage has reached its appropriate level or not.
11 FB Input External resistor connection pin for output voltage setting
2,3,9,13,14 NC -
No connection
This pin can be connected to any other pins