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XC9503 Datasheet(PDF) 3 Page - Torex Semiconductor

Part # XC9503
Description  2ch Step-down DC/DC Controller ICs
Download  30 Pages
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Manufacturer  TOREX [Torex Semiconductor]
Direct Link  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XC9503 Datasheet(HTML) 3 Page - Torex Semiconductor

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Block Diagram
Absolute Maximum Ratings
Ta=25
OC
* Voltage goes to Ground.
150
OC
mW
- 0.3 ~ 12
- 0.3 ~ VDD + 0.3
PARAMETER
FB1, 2 Pin Voltage
EN1, 2 Pin Voltage
PWM1,2 Pin Voltage
IEXT
±100
mA
Pd
Operating Ambient Temperature
Storage Temperature
EXT1, 2 Pin Voltage
VPWM
VEXT
Topr
V
EXT1, 2 Pin Current
Power Dissipation
V
VEN
- 0.3 ~ 12
V
- 0.3 ~ 12
V
SYMBOL
RATINGS
UNITS
2ch. Step-down DC/DC Controller ICs
XC9503 Series
V
Tstg
OC
- 55 ~ +125
- 40 ~ + 85
VDD Pin Voltage
VFB
VDD
- 0.3 ~ 12
PWM1
+
-
FB1
VDD
EXT1
Vref1 = 0.9V
with Soft Start1,
EN1
+
-
PWM/PFM
Controller 1
Vref2 = 0.9V
with Soft Start 1,
EN2
+
-
PWM/PFM
Controller 2
FB2
GND
EXT2
OSC
Generator
Ramp Wave
Generator 1
Ramp Wave
Generator 2
Error Amp2
Error Amp1
PWM
Comparator2
PWM
Comparator1
EN1
PWM2
EN2
EN1 to
internal circuit
EN2 to
internal circuit
-
+
3


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