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XC9502B092AL

更新时间： 2024-11-10 22:27:07
品牌 Logo 应用领域
特瑞仕 - TOREX 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
40页 628K
描述
2ch. Step-up / down DC/DC Controller ICs

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XC9502B092AL 技术参数

是否Rohs认证： 符合生命周期：Active
包装说明：,Reach Compliance Code：compliant
风险等级：5.77Is Samacsys：N
湿度敏感等级：1Base Number Matches：1

XC9502B092AL 数据手册

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2ch. Step-up / down DC/DC Controller ICs  
XC9502 Series  
Mar, 14 2003 Ver. 2  
! Applications  
" 2ch DC/DC Controller (Step-up + Step-down)  
" Input Voltage Range 0.9V ~ 10.0V  
" Output Voltage Externally Set-Up  
# PDAs  
# Palm Top Computers  
# Portable Audio Systems  
# Various Multi-Function Power Supplies  
" Switching Frequency 180kHz (±15%)  
" Maximum Duty Cycle Step-up  
80% (Typ.)  
Step-down 100%  
" PWM, PWM/PFM Switching Control  
! Features  
" High Efficiency  
Step-up  
85% (Typ.)  
2ch DC/DC Controller  
Step-down 92% (Typ.)  
Output 1 : Step-up DC/DC Controller  
Output 2 : Step-down DC/DC Controller  
Power Supply Voltage Range : 2.0V ~ 10V  
Output Voltage Range  
" Small MSOP-10 package  
Output 1 (Step-up) : 1.5V ~ 30.0V  
Can be set freely with 0.9V  
(±2.0%) of reference voltage supply  
and external components.  
! 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.  
Output 2 (Step-down) : 0.9V ~ 6.0V  
Can be set freely with 0.9V  
(±2.0%) of reference voltage supply  
and external components.  
Oscillation Frequency  
: 180kHz  
±15%  
(300kHz, 500kHz custom)  
: more than 300mA (VIN=1.8V, VOUT=3.3V)  
Output Current  
Output 1  
Output 2  
: more than 1000mA (VIN=3.3V, VOUT=1.8V)  
: 3.0µA (MAX.)  
Stand-By Function  
Package  
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.  
: MSOP-10  
Soft-Start Time  
: 10 ms (internally set)  
! Typical Performance Characteristics  
XC9502B093A (300kHz,VOUT1:3.3V,VOUT2:1.8V)  
L1=15µH,L2=22µH(CDRH5D28),CL1,CL2=92µF(Tantalum)  
SD1,SD2:CMS02, Tr1:XP161A1355P,Tr2:XP162A12A6P  
100  
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.  
PWM/PFM Switching Control  
90  
80  
70  
60  
VOUT1:3.3V  
50  
VOUT2:1.8V  
40  
30  
20  
PWM Control  
10  
VIN=2.7V  
0
! Typical Application Circuit  
XC9502B092A Input :  
0.1  
1
10  
100  
1000  
Output Current 1,2 IOUT1,2 (mA)  
2 cell, VOUT1 : 3.3V, VOUT2 : 1.8V  
Tr2:Pch  
MOSFET  
XP162A12A6P  
L1:22µH  
CDRH5D28  
L2:22µH  
CDRH5D28  
SD1  
:MA2Q737  
VOUT1:3.3V  
VOUT2:1.8V  
SD2  
:MA2Q737  
C
IN  
VIN  
=2.0V  
~3.0V  
Tr2:Nch  
MOSFET  
:XP161A1355P  
:47µF  
RFB11  
:200kΩ  
CFB1  
:62pF  
RFB21  
:220kΩ  
CFB2  
:62pF  
CL1  
:47µFX2  
CL2  
:47µFX2  
1 EXT1 EXT2/ 10  
2 VDD  
3 FB1  
GND  
FB2  
9
8
PWM2 7  
EN2 6  
4 PWM1  
5 EN1  
V
PWM1  
V
PWM2  
RFB12  
:75kΩ  
RFB22  
:220kΩ  
VNE2  
VNE1  
1
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