參數(shù)資料
型號(hào)： XC9101_1
廠商： TOREX SEMICONDUCTOR LTD.
英文描述： PWM Controlled Step-Up DC/DC Controllers
中文描述： PWM控制升壓型DC / DC控制器
文件頁(yè)數(shù)： 1/22頁(yè)
文件大小： 1058K
代理商： XC9101_1
XC9101
Series
1/22
PWM Controlled Step-Up DC/DC Controllers
■
GENERAL DESCRIPTION
The XC9101 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 1.5A.
With output voltage fixed internally, V
OUT
is selectable in 100mV increments within a 2.5V ~ 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 ~ 600kHz 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 resistor and capacitor.
During shutdown (CE pin=L), consumption current can be reduced to as little as 0.5
μ
A (TYP.) or less.
■
APPLICATIONS
●
Mobile, Cordless phones
●
Palm top computers, PDAs
●
Portable games
●
Cameras, Digital cameras
●
Note book PCs
■
TYPICAL APPLICATION CIRCUIT
■
FEATURES
Stable Operations via Current & Voltage
Multiple Feedback
Unlimited Options for Peripheral Selection
Current Protection Circuit
Ceramic Capacitor Compatible
Input Voltage Range
: 2.5V ~ 20V
Output Voltage Range
: 2.5V ~ 16V
(Fixed Voltage Type)
: 30V + (Adjustable Type)
Oscillation Frequency Range
: 100kHz ~ 600kHz
Output Current
: Up to 1.5A
Package
: MSOP-8A, SOP-8
■
TYPICAL PERFORMANCE
CHARACTERISTICS
V
OUT
: 5.0V, FOSC: 180KHz
ETR0403_003
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