XC9103/XC9104/XC9105
Series
■PIN
CONFIGURATION
EXT
GND
FB 6
1 EXT
2 VDD
3 GND
NC 5
CE 4
FB
VDD
CE
The dissipation pad for the USP-6B
package should be solder-plated in
recommended mount pattern and metal
masking so as to enhance mounting
strength and heat release.
If the pad needs to be connected to other
pins, it should be connected to the V
DD
(No.2) pin.
(TOP VIEW)
■PIN
ASSIGNMENT
PIN NUMBER
SOT-25
1
2
3
4
5
-
USP-6B
6
2
4
3
1
5
PIN NAME
FB
V
DD
CE
CE (/PWM)
GND
EXT
NC
FUNCTION
Output Resistor Connection
Supply Voltage
Chip Enable
Serves as both PWM/PFM switching pin and CE pin for XC9105
Ground
External Transistor Connection
No Connection
■
PRODUCT CLASSIFICATION
●Ordering
Information
XC9103①②③④⑤⑥: PWM Control
XC9104①②③④⑤⑥: PWM/PFM Automatic Switching Control
XC9105①②③④⑤⑥: PWM/PFM Manual Switching Control
DESIGNATOR
①
② ③
DESCRIPTION
Type of DC/DC Controller
Output Voltage
SYMBOL
B
D
09
3
④
Oscillation Frequency
1
2
5
⑤
⑥
Package
Device Orientation
M
D
R
L
DESCRIPTION
: With current limiter (180kHz, 300kHz only)
: Without current limiter
: FB voltage (e.g. FB Voltage=0.9V→②=0,
③=9)
: 300kHz
: 100kHz
: 180kHz
: 500kHz
: SOT-25 (SOT-23-5)
: USP-6B
: Embossed tape, standard feed
: Embossed tape, reverse feed
2/23
TOREX [ TOREX SEMICONDUCTOR ]
