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XC9508 Datasheet(PDF) 2 Page - Torex Semiconductor

No. de Pieza. XC9508
Descripción  Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator plus Voltage Detector
Descarga  36 Pages
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Fabricante  TOREX [Torex Semiconductor]
Página de inicio  http://www.torex.co.jp
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XC9508 Datasheet(HTML) 2 Page - Torex Semiconductor

 
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2
XC9508 Series
Data Sheet
ud200541
DESIGNATOR
DESCRIPTION
SYMBOL
DESCRIPTION
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
DC/DC Oscillation Frequency
C
: 1.2MHz
A
: MSOP-10, Current limiter: 1.1A (TYP.)
Package &
DC/DC Current limit
D
: USP-10, Current limiter: 0.7A (TYP.)
R
: Embossed Tape, standard feed
Device Orientation
L
: Embossed Tape, reverse feed
SERIES
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
*Please use the circuit without connecting the
heat dissipation pad. 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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