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參數(shù)資料
| 型號(hào)： | CD54-470L |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開(kāi)關(guān)穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大?。?/td> | 158K |
| 代理商： | CD54-470L |
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Semiconductor Components Industries, LLC, 2003
November, 2003 Rev. 5
1
Publication Order Number:
NCP1402/D
NCP1402
200 mA, PFM StepUp
Micropower Switching
Regulator
The NCP1402 series are monolithic micropower stepup DC to DC
converter that are specially designed for powering portable equipment
from one or two cell battery packs.These devices are designed to
startup with a cell voltage of 0.8 V and operate down to less than
0.3 V. With only three external components, this series allow a simple
means to implement highly efficient converters that are capable of up
to 200 mA of output current at V
in
= 2.0 V, V
OUT
= 3.0 V.
Each device consists of an onchip PFM (Pulse Frequency
Modulation) oscillator, PFM controller, PFM comparator, softstart,
voltage reference, feedback resistors, driver, and power MOSFET
switch with current limit protection. Additionally, a chip enable
feature is provided to power down the converter for extended battery
life.
The NCP1402 device series are available in the Thin SOT235
package with five standard regulated output voltages. Additional
voltages that range from 1.8 V to 5.0 V in 100 mV steps can be
manufactured.
Features
Extremely Low StartUp Voltage of 0.8 V
Operation Down to Less than 0.3 V
High Efficiency 85% (V
in
= 2.0 V, V
OUT
= 3.0 V, 70 mA)
Low Operating Current of 30 A (V
OUT
= 1.9 V)
Output Voltage Accuracy
±
2.5%
Low Converter Ripple with Typical 30 mV
Only Three External Components Are Required
Chip Enable Power Down Capability for Extended Battery Life
Micro Miniature Thin SOT235 Packages
Typical Applications
Cellular Telephones
Pagers
Personal Digital Assistants (PDA)
Electronic Games
Portable Audio (MP3)
Camcorders
Digital Cameras
Handheld Instruments
ORDERING INFORMATION
SOT235
(TSOP5, SC595)
SN SUFFIX
CASE 483
1
5
PIN CONNECTIONS AND
MARKING DIAGRAM
1
3
GND
CE
2
OUT
NC
4
LX
5
x
(Top View)
xxx = Marking
Y
= Year
W
= Work Week
See detailed ordering and shipping information in the ordering
information section on page 3 of this data sheet.
http://onsemi.com
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