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參數(shù)資料
| 型號： | XC9502B092AR |
| 廠商： | TOREX SEMICONDUCTOR LTD. |
| 英文描述： | 2ch. Step-up / down DC/DC Controller ICs |
| 中文描述： | 2通道。升壓/降壓DC / DC控制器芯片 |
| 文件頁數(shù)： | 1/40頁 |
| 文件大小： | 631K |
| 代理商： | XC9502B092AR |
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Mar, 14 2003 Ver. 2
!
Applications
#
PDAs
#
Palm Top Computers
#
Portable Audio Systems
#
Various Multi-Function Power Supplies
"
2ch DC/DC Controller (Step-up + Step-down)
"
Input Voltage Range 0.9V ~ 10.0V
"
Output Voltage Externally Set-Up
"
Switching Frequency 180kHz (±15%)
"
Maximum Duty Cycle
Step-up 80% (Typ.)
Step-down 100%
"
PWM, PWM/PFM Switching Control
"
High Efficiency
!
Features
2ch DC/DC Controller
Output 1 : Step-up DC/DC Controller
Output 2 : Step-down DC/DC Controller
Power Supply Voltage Range
: 2.0V ~ 10V
Output Voltage Range
Output 1 (Step-up) : 1.5V ~ 30.0V
Step-up 85% (Typ.)
Step-down 92% (Typ.)
"
Small MSOP-10 package
!
General Description
The XC9502 series are PWM controlled, PWM/PFM automatic
switching controlled, multi-functional, 2 channel step-up and
down DC/DC controller ICs. With 0.9V of standard voltage
supply internal, and using externally connected components,
the output 1 voltage (step-up DC/DC controller) can be set
freely within a range of 1.5V to 30V. Since the output 2 (step-
down DC/DC controller) has a built-in 0.9V reference voltage
(accuracy ±2%), 0.9V to 6.0V can be set using external
components. With a 180kHz frequency, the size of the
external components can be reduced. Switching frequencies
of 300kHz & 500kHz are also available as custom-designed
products.
The control of the XC9502 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.
Output 2 (Step-down) : 0.9V ~ 6.0V
Oscillation Frequency
: 180kHz
(300kHz, 500kHz custom)
: more than 300mA
(V
IN
=1.8V, V
OUT
=3.3V)
±
15%
Output Current
Output 1
Output 2
Stand-By Function
Package
Soft-Start Time
!
Typical Performance Characteristics
: 3.0
μ
A (MAX.)
: MSOP-10
: 10 ms (internally set)
!
Typical Application Circuit
XC9502B092A Input :
2 cell, VOUT
1
: 3.3V, VOUT
2
: 1.8V
: more than 1000mA (VIN=3.3V, VOUT=1.8V)
Noise is easily reduced with PWM control since the frequency
is fixed. The series gives freedom of control selection so that
control suited to the application can be selected. Soft-start
time is internally set to 10msec (Output 1) and offers protection
against in-rush currents when the power is switched. This also
prevents voltage overshoot.
Can be set freely with 0.9V
(
±
2.0%) of reference voltage supply
and external components.
Can be set freely with 0.9V
(
±
2.0%) of reference voltage supply
and external components.
XC9502 Series
2ch. Step-up / down DC/DC Controller ICs
Tr2:Nch
MOSFET
:XP161A1355P
L1:22
μ
H
CDRH5D28
Tr2:Pch
MOSFET
XP162A12A6P
C
IN
:47
μ
F
VIN
=2.0V
~3.0V
SD2
:MA2Q737
SD1
:MA2Q737
RFB11
:200k
CFB1
:62pF
RFB12
:75k
V
OUT
1:3.3V
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
V
PWM1
V
PWM2
V
NE2
V
NE1
L2:22
μ
H
CDRH5D28
V
OUT
2:1.8V
RFB21
:220k
RFB22
:220k
CFB2
:62pF
0
10
20
30
40
50
60
70
80
90
100
0.1
1
10
100
1000
Output Current 1,2 I
OUT1,2
(mA)
E
V
IN
=2.7V
V
OUT2
:1.8V
PWM Control
PWM/PFM Switching Control
L1=15
μ
H,L2=22
μ
H(CDRH5D28),C
L1,
C
L2
=92
μ
F(Tantalum)
SD1,SD2:CMS02, Tr1:XP161A1355P,Tr2:XP162A12A6P
XC9502B093A (300kHz,VOUT1:3.3V,VOUT2:1.8V)
V
OUT1
:3.3V
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XC9503B093A | 2ch Step-down DC/DC Controller ICs |
| XC9503B092 | 2ch Step-down DC/DC Controller ICs |
| XC9503B092A | 2ch Step-down DC/DC Controller ICs |
| XC9503B092AL | 2ch Step-down DC/DC Controller ICs |
| XC9503B092AR | 2ch Step-down DC/DC Controller ICs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XC9502B093AL | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch. Step-up / down DC/DC Controller ICs |
| XC9502B093AR | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch. Step-up / down DC/DC Controller ICs |
| XC9502B095AL | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch. Step-up / down DC/DC Controller ICs |
| XC9502B095AR | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch. Step-up / down DC/DC Controller ICs |
| XC9502B09AL | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:2ch. Step-up / down DC/DC Controller ICs |
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