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XC9508 Datasheet(PDF) 2 Page - Torex Semiconductor

Part # XC9508
Description  Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Series Plus Voltage Detector
PDF  38 Pages
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Manufacturer  TOREX [Torex Semiconductor]
Direct Link  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XC9508 Datasheet(HTML) 2 Page - Torex Semiconductor

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XC9508 Series
DESIGNATOR
DESCRIPTION
SYMBOL
DESCRIPTION
①
Control Methods and
the VD Sense Pin
As chart below : -
②③
Setting Voltage &
Specifications
Internal
standard
: Setting voltage and specifications of each DC/DC,
VR, and VD (Based on the internal standard)
3
: 300kHz
6
: 600kHz
④
DC/DC Oscillation
Frequency
C
: 1.2MHz
A
: MSOP-10, Current limiter: 1.1A (TYP.)
⑤
Package &
DC/DC Current limit
D
: USP-10, Current limiter: 0.7A (TYP.)
R
: Embossed Tape, standard feed
⑥
Device Orientation
L
: Embossed Tape, reverse feed
SERIES
①
DC/DC CONTROL METHODS
MODE PINS (H LEVEL)
MODE PINS (L LEVEL)
A
PWM Control
VR: OFF
VR: ON
XC9508
C
PWM, PFM/PWM Manual Switch
PFM / PWM Switch
PWM Control
PIN NUMBER
PIN NAME
FUNCTION
1
PGND
Power Ground
2
CE
Chip Enable
3
VDD
Power Supply
4
VDOUT
VD Output
5
VDIN
VD Input
6
AGND
Analog Ground
7
MODE
Mode Switch
8
VROUT
VR Output
9
DCOUT
DC/DC Output Sense
10
LX
Switch
■
PIN CONFIGURATION
■
PIN ASSIGNMENT
■
PRODUCT CLASSIFICATION
●
Ordering Information
XC9508①②③④⑤⑥
The input for the voltage regulator block comes from the DC/DC.
PGND 1
CE 2
VDD 3
VDOUT 4
VDIN 5
10 LX
9 DCOUT
8 VROUT
7 MODE
6 AGND
*The dissipation pad for the USP-10 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
AGND pin.
USP-10 (BOTTOM VIEW)
●
Control Methods and MODE Pin
* The XC9508A series' MODE pin switches the regulator to the stand-by mode.
When the CE mode is off, every function except for the VD function enters into the stand-by mode.
(The MODE pin does not operate independently.)
MSOP-10 (TOP VIEW)



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