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參數(shù)資料
| 型號： | Xc9302 |
| 廠商： | TOREX SEMICONDUCTOR LTD. |
| 英文描述： | PWM, PWM/PFM Switching Step-Up & Down DC/DC Converter Controller ICs |
| 中文描述： | 的PWM，PWM / PFM切換開關升壓 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 524K |
| 代理商： | XC9302 |
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The XC9301/02 series are step-up/down DC/DC converter controller ICs
with fast, low ON resistance drivers built-in. A versatile, large output
current, step-up/down DC/DC converter can be realised using only 4
basic external components - transistors, coils, diodes and capacitors.
Output voltage is selectable in 0.1V steps within a 2.4V ~ 6.0V ( ± 2.5%
accuracy) range and switching frequency is set at 180kHz or 300KHz.
The XC9302 series switches from PWM to PFM control during light loads
and the series offers high efficiencies from light loads through to large
output currents.
Soft-start time is internally set to 10 msec which offers protection against
rush currents when the power is switched on and also against voltage
overshoot.
During shutdown (CE pin = L), consumption current can be reduced to
as little as 0.5
μ
A or less.
Input Voltage Range
Output Voltage Range
: 2.4V ~ 6.0V ( ± 2.5% accuracy)
(selectable in 0.1V steps)
Oscillation Frequency
: 180KHz, 300KHz ( ± 15% accuracy)
Output Current
: more than 250mA (V
IN
=2.4V,
V
OUT
=3.3V)
Efficiency
: 81% (typ) at 5.0V, 78% (typ) at 3.3V
Stand-By
: ISTB = 0.5
μ
A (max)
Output Voltage Internal Set-Up
SOT-25 Package
: 2.0V ~ 10V
G
Mobile phones
G
PDAs
G
Palmtop computers
G
Portable audio equipment
G
Various power supplies
N
Input Voltage Range
N
Output Voltage Range : 2.4V ~ 6.0V (±2.5% accuracy)
N
Oscillation Frequency Range
: 180kHz, 300kHz (±15% accuracy)
N
Maximum Duty Ratio : 85% (typ)
N
PWM/PFM Switching Step-Up & Down Control (XC9302)
N
Efficiency
: 81% (typ) 5.0V , 78% (typ) 3.3V
N
SOT-25 Package
: 2.0V ~10.0V
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| XC9302252MR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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