UM3510_16 Datasheet, PDF (2/13 Pages) Union Semiconductor, Inc. – 1A, 2.25MHz, Synchronous Step-Down DC-DC Converter

Pin Configurations
Top View
UM3510
SW 1
MODE 2
FB 3
Exposed
Thermal
Pad
6 GND
5 VIN
4 _EN
(Top View)
Ordering Information
Part Number
UM3510S
UM3510DA
Packaging Type
SOT23-6
DFN6 2.0×2.0
Pin Description
AAH
M: Month Code
UM3510DA
DFN6 2.0×2.0
Marking Code
UCB
AAH
Shipping Qty
3000pcs/7Inch
Tape & Reel
Pin Number
1
2
3
4
5
6
Symbol
Function
SW
MODE
FB
EN
Power switch output. It is the switch node connection to the inductor.
This pin connects to the drains of the internal P-CH and N-CH
MOSFET switches.
MODE pin=high forces the device to operate in fixed-frequency
PWM mode. Mode pin=low enables the Power Save Mode with
automatic transition from PFM mode to fixed-frequency PWM
mode.
Feedback input pin. Connect FB to the center point of the external
resistor divider.
Regulator enable control input. Pulling this pin to high enables the
device. Pulling this pin to low forces the device into shutdown
mode. This pin must be terminated.
VIN Input voltage.
GND Ground.
________________________________________________________________________
http://www.union-ic.com Rev.01 Jan.2016
2/13