參數(shù)資料
型號(hào)： XC9503B092A
廠商： TOREX SEMICONDUCTOR LTD.
英文描述： 2ch Step-down DC/DC Controller ICs
中文描述： 2通道降壓DC / DC控制器芯片
文件頁(yè)數(shù)： 1/30頁(yè)
文件大小： 405K
代理商： XC9503B092A
Mar. 14, 2003 Ver. 2
Applications
z
PDAs
z
Palm Top Computers
z
Digital Cameras
z
Various Multi-Function Power Supplies
2ch DC/DC Controller (Step-down + Step-down)
Input Voltage Range 2.0V ~ 10.0V
Output Voltage Externally Set-Up
Switching Frequency 300kHz (±15%)
Maximum Duty Cycle
PWM, PWM/PFM Switching Control
High Efficiency
Small MSOP-10 package
100%
Features
Input Voltage Range
Power Supply Voltage Range
: 2.0V ~ 10V
Output Voltage Range
Step-down 92% (Typ.)
: 2.0V ~ 10V
: 0.9V ~ 6.0V
Can be set freely with 0.9V
(±2.0%) of reference
voltage supply and
external components.
General Description
The XC9503 series are PWM controlled, PWM/PFM automatic
switching controlled, multi-functional, 2 channel step-down
DC/DC controller ICs. Since the series has a built-in 0.9V
reference voltage (accuracy ±2%), 0.9V to 6.0V can be set
using external components. With a 300kHz frequency, the size
of the external components can be reduced. Switching
frequencies of 180kHz & 500kHz are also available as custom-
designed products.
The control of the XC9503 series can be switched between
PWM control and PWM/PFM automatic switching control using
external signals. Control switches from PWM to PFM during
light loads when automatic switching is selected and the series
is highly efficient from light loads through to large output
currents.
Oscillation Frequency
: 300kHz
(180kHz, 500kHz custom)
±
15%
Output Current
Stand-By Function
Package
Soft-Start Time
: 3.0
μ
A (MAX.)
: MSOP-10
: 10 ms (internally set)
Typical Performance Characteristics
Typical Application Circuit
XC9503B093A Input :
VOUT
1
: 3.3V, VOUT
2
: 1.8V
: more than 1000mA (VIN=5.0V, VOUT=3.3V)
Noise is easily reduced with PWM control since the frequency
is fixed. The series gives freedom to select control suited to
the application. Soft-start time is internally set to 10msec and
offers protection against in-rush currents when the power is
switched on and also protects against voltage overshoot.
XC9503 Series
2ch. Step-down DC/DC Controller ICs
XC9503B093A (300kHz,VOUT1:3.3V)
0
10
20
30
40
50
60
70
80
90
100
0.1
1
Output Current 1 I
OUT1
(mA)
10
100
1000
E
VIN=5.0V
PWM
PWM/PFM Switching
L1=22
μ
H(CDRH5D28), C
L1
=47
μ
F(Tantalum)
SD1:MA2Q737, Tr1:XP162A1355P
L1:22
μ
H
CDRH5D28
Tr2:Pch MOSFET
XP162A12A6P
CIN
:47
μ
F
VIN
=5.0V
Tr1:Pch MOSFET
XP162A12A6P
SD2
:MA2Q737
SD1
:MA2Q737
RFB11
:200k
CFB1
:62pF
RFB12
:75k
VOUT1:3.3V
1 EXT1/
2 VDD
3 FB1
FB2 8
GND 9
EXT2/ 10
4 PWM1
PWM2 7
5 EN1
EN2 6
CL1:
47
μ
FX2
CL2:
47
μ
FX2
VPWM1
VPWM2
VEN2
VEN1
L2:22
μ
H
CDRH5D28
VOUT2:1.8V
RFB21
:220k
RFB22
:220k
CFB2
:62pF
1
相關(guān)PDF資料
PDF描述
XC9503B092AL 2ch Step-down DC/DC Controller ICs
XC9503B092AR 2ch Step-down DC/DC Controller ICs
XC9503B093 2ch Step-down DC/DC Controller ICs
XC9503B093AL 2ch Step-down DC/DC Controller ICs
XC9503B093AR 2ch Step-down DC/DC Controller ICs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XC9503B092AL 制造商:TOREX 制造商全稱(chēng):Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs
XC9503B092AR 制造商:TOREX 制造商全稱(chēng):Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs
XC9503B093 制造商:TOREX 制造商全稱(chēng):Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs
XC9503B093A 制造商:TOREX 制造商全稱(chēng):Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs
XC9503B093AL 制造商:TOREX 制造商全稱(chēng):Torex Semiconductor 功能描述:2ch Step-down DC/DC Controller ICs
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