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XC9201D09AKR 参数 Datasheet PDF下载

XC9201D09AKR图片预览
型号: XC9201D09AKR
PDF下载: 下载PDF文件 查看货源
内容描述: PWM控制的降压型DC / DC转换器 [PWM Controlled Step-Down DC/DC Converters]
分类和应用: 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
文件页数/大小: 20 页 / 336 K
品牌: TOREX [ TOREX SEMICONDUCTOR ]
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Series
PWM Controlled Step-Down DC/DC Converters
NInput
Voltage Range
NOutput
Voltage Range
: 2.5V ~20V
: 1.2V ~ 16V
600kHz
: up to 3.0A
■Applications
GMobile,
Cordless phones
GPalm
top computers, PDAs
GPortable
games
GCameras,
Digital cameras
GLaptops
NOscillation
Frequency Range : 100kHz ~
NOutput
Current
NMSOP-8A
Package
NCeramic
Capacitor Compatible
■General Description
The XC9201 series are step-up multiple current and voltage feedback
DC/DC controller ICs. Current sense, clock frequencies and amp
feedback gain can all be externally regulated.
A stable power supply is possible with output currents of up to 3.0A.With
output voltage fixed internally, V
OUT
is selectable in 0.1V steps within a
1.2V - 16.0V range (± 2.5%).
For output voltages outside this range, we recommend the FB version
which has a 0.9V internal reference voltage. Using this version, the
required output voltage can be set-up using 2 external resistors.
Switching frequencies can also be set-up externally within a range of
100~600 kHz and therefore frequencies suited to your particular
application can be selected.
With the current sense function, peak currents (which flow through the
driver transistor and the coil) can be controlled. Soft-start time can be
adjusted using external resistors and capacitors.
During shutdown (CE pin =L), consumption current can be reduced to as
little as 0.5µA (TYP.) or less and with U.V.L.O
(Under Voltage Lock Out) built-in, the external transistor will be
automatically shut off below the regulated voltage.
■Features
GStable
Operations via Current & Voltage Multiple Feedback
GUnlimited
Options for Peripheral Selection
GCurrent
Protection Circuit
GCeramic
Capacitor Compatible
5
■Typical Application Circuit
22μH
XP132A11A1SR
■Typical Performance
Characteristic
V
OUT
:5.0V FOSC:330kHz
100
1 EXT
2 Isen
U3FWJ44N
33mΩ
3 V
IN
240kΩ
4 CE/SS
94μF
0.33
μF
1μF
Vss 8
V
OUT
7
GAIN 6
CLK 5
10KΩ
470pF
220pF
Efficiency:EFFI (%)
80
60
40
20
0
0.1
1
10
100
1000
10000
V
IN
=5.4V
7.2V
10.0V
12.0V
15.0V
40μF+220μF
Output Current:I
OUT
(mA)
535