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參數(shù)資料
| 型號(hào)： | XC9505B095A |
| 廠商： | TOREX SEMICONDUCTOR LTD. |
| 英文描述： | 2ch. Step-Down / Inverting DC/DC Controller ICs |
| 中文描述： | 2通道。降壓/反向DC / DC控制器芯片 |
| 文件頁(yè)數(shù)： | 1/47頁(yè) |
| 文件大?。?/td> | 705K |
| 代理商： | XC9505B095A |
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May 29, 2003 Ver 4
!
Applications
#
PDAs
#
Palm Top Computers
#
Portable Audio Systems
#
Various Multi-function Power Supplies
"
2ch DC/DC Controller (Step-Down + Inverting)
"
Input Voltage Range 2.0V ~ 10.0V
"
Output Voltage Externally Set-Up
"
Oscillation Frequency 180kHz (±15%)
"
Max Duty Ratio
Step-Down : 100%
Inverting : 80% (Typ.)
"
PWM, PWM/PFM Switching Control
"
MSOP-10 Package
!
Features
2ch. DC/DC Controllers
Output 1: Step-Down DC/DC Controller
Output 2: Inverting DC/DC Controller
Power Supply Voltage Range
2.0V ~ 10V
Output Voltage Range
Output 1:
(Step-Down DC/DC Controller)
!
General Description
The XC9505 series are PWM control, PWM/PFM switching, 2
channel (step-down and inverting) DC/DC controller ICs.
With 0.9V of standard voltage supply internal, and using
externally connected components, the output 1 voltage (step-
down DC/DC controller) can be set freely within a range of 0.9V
~ 6.0V. Since output 2 (inverting DC/DC controller) has a
built-in 0.9V reference voltage (accuracy
±
2), a negative voltage
can be set with the external components.
With a 180kHz frequency, the size of the external components
can be reduced. Switching frequencies of 300kHz and 500kHz
are also available as custom-designed products.
The control of the XC9505 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. 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)
0.9V ~ 6.0V
Can be set freely with 0.9V(±
2.0%) of reference voltage
supply & external components
Output 2:
(Inverting DC/DC Controller)
-30V ~ 0V
Can be set freely with 0.9V(±
2.0%) of reference voltage &
external components
Oscillation Frequency
180kHz ±15%
300kHz & 500kHz are available as custom
Output Current
Output 1 :
Output 2 :
Soft-Start Internally Set-Up (Output 1)
Stand-By Current
3.0
μ
A (MAX)
!
Typical Perfomance Characteristics
!
Typical Application
( XC9505B092A Input: 2 Cell, Output
1
: 3.3V, Output
2
: -7.5V )
XC9505 Series
2ch. Step-Down / Inverting DC/DC Controller ICs
more than 1000mA (VIN=5.0V,VOUT=3.3V)
more than - 100mA (VIN=5.0V,VOUT=- 7.5V)
which offers protection against rush currents and voltage
overshoot when the power is switched on .
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
PWM Control
PWM/PFM Switching Control
XC9505B092A (180kHz,V
OUT1
:3.3V,V
OUT2
:-7.5V)
V
IN
=5.0V
V
OUT1
:3.3V
V
OUT2
:-7.5V
Tr1,Tr2:XP162A12A6P, CL1, CL2=92uF(Tantalum),SD1:CMS02
SD2:MA2Q737,L1=47uH(CDRH6D28),L2=22uH(CDRH5D28)
L1:22uH
CDRH5D28
Tr2:Pch
XP162A12A6P
MOSFET
CIN
:47uF
VIN
=5.0V
Tr1:Pch
XP162A12A6P
MOSFET
SD2
:MA2Q737
SD1
:MA2Q737
RF B11
:2 00k
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
CL1:47uF
CL2:47uF
VPWM 1
VPWM 2
VEN 2
VEN 1
L2:22uH
CDRH5D28
VOUT2 :-7.5V
CF B1
:88pF
RF B21
:150 k
RF B22
:43 k
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XC9508_1 | Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Series Plus Voltage Detector |
| XC9509A033AL | Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Parallel Plus Voltage Detector |
| XC9509A033AR | Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Parallel Plus Voltage Detector |
| XC9509A033DL | Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Parallel Plus Voltage Detector |
| XC9509A033DR | Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Parallel Plus Voltage Detector |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XC9508 | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator plus Voltage Detector |
| XC9508_1 | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator in Series Plus Voltage Detector |
| XC9508AXXXXX | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator plus Voltage Detector |
| XC9508CXXXXX | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator plus Voltage Detector |
| XC9508X15XXX | 制造商:TOREX 制造商全稱:Torex Semiconductor 功能描述:Synchronous Step-Down DC/DC Converter with Built-In LDO Regulator plus Voltage Detector |
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