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T491C106K016AS Datasheet

  • T491C106K016AS

  • 200 mA, PFM Step-Up Micropower Switching Regulator

  • 161.72KB

  • 18頁

  • ONSEMI

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NCP1402
200 mA, PFM Step鈭扷p
Micropower Switching
Regulator
The NCP1402 series are monolithic micropower step鈭抲p DC to DC
converter that are specially designed for powering portable equipment
from one or two cell battery packs.These devices are designed to
start鈭抲p 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 on鈭抍hip PFM (Pulse Frequency
Modulation) oscillator, PFM controller, PFM comparator, soft鈭抯tart,
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 SOT鈭?3鈭?
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
http://onsemi.com
5
1
SOT23鈭?
(TSOP鈭?, SC59鈭?)
SN SUFFIX
CASE 483
PIN CONNECTIONS AND
MARKING DIAGRAM
CE
OUT
NC
1
xxxYW
2
3
5
LX
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Extremely Low Start鈭扷p 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
mA
(V
OUT
= 1.9 V)
Output Voltage Accuracy
鹵
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 SOT鈭?3鈭? Packages
Cellular Telephones
Pagers
Personal Digital Assistants (PDA)
Electronic Games
Portable Audio (MP3)
Camcorders
Digital Cameras
Handheld Instruments
4
GND
xxx = Marking
Y
= Year
W = Work Week
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the ordering
information section on page 3 of this data sheet.
Typical Applications
漏
Semiconductor Components Industries, LLC, 2003
1
November, 2003 鈭?Rev. 5
Publication Order Number:
NCP1402/D

T491C106K016AS 產品屬性

  • Kemet

  • 鉭質電容器-固體SMD

  • 10 uF

  • 16 Volts

  • 10 %

  • 2312 (6032 metric)

  • C Case

  • 3.2 mm W x 6 mm L

  • 2.8 mm

  • - 55 C to + 125 C

  • T491

  • Tantalum Solid Standard Grade - Other Various

  • Reel

  • 500

  • SMD/SMT

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