BD1603NUV
● Pin Descriptions
Datasheet
Pin number
1
2
3
4
5
6
7
8
9
10
-
Pin name
VOUT
CF1+
VIN
FSEL
VSEL
EN
CF2-
GND
CF1-
CF2+
Thermal
PAD
In/Out
Out
In/Out
In
In
In
In
In/Out
-
In/Out
In/Out
-
Function
Output pin
Connection pin for flying capacitor 1
Input voltage
Frequency switch pin(L : 238kHz, H : 642kHz)
Output voltage switch pin(L : 4.5V, H : 5.0V)
ON/OFF control pin
Connection pin for flying capacitor 2
Ground pin
Connection pin for flying capacitor 1
Connection pin for flying capacitor 2
Heat radiation PAD of back side
Connect to GND
● Block Diagram
Figure 1. Block Diagram
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
3/12
TSZ02201-0G3G0C200040-1-2
17.Dec.2012 Rev.001
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