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NCP1729/D Datasheet

  • NCP1729/D

  • Switched Capacitor Voltage Inverter

  • 24頁

  • ETC

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NCP1729
Switched Capacitor
Voltage Inverter
The NCP1729 is a CMOS charge pump voltage inverter that is
designed for operation over an input voltage range of 1.15 V to 5.5 V
with an output current capability in excess of 50 mA. The operating
current consumption is only 122
mA,
and a power saving shutdown
input is provided to further reduce the current to a mere 0.4
mA.
The
device contains a 35 kHz oscillator that drives four low resistance
MOSFET switches, yielding a low output resistance of 26
W
and a
voltage conversion efficiency of 99%. This device requires only two
external 3.3
mF
capacitors for a complete inverter making it an ideal
solution for numerous battery powered and board level applications.
The NCP1729 is available in the space saving TSOP鈥? (SOT鈥?3鈥?)
package.
Features
http://onsemi.com
MARKING
DIAGRAM
6
6
1
TSOP鈥?
SN SUFFIX
CASE 318G
1
EAD = Device Code
Y
= Year
W
= Work Week
EADYW
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Operating Voltage Range of 1.15 V to 5.5 V
Output Current Capability in Excess of 50 mA
Low Current Consumption of 122
mA
Power Saving Shutdown Input for a Reduced Current of 0.4
mA
Operation at 35 kHz
Low Output Resistance of 26
W
Space Saving TSOP鈥? (SOT鈥?3鈥?) Package
LCD Panel Bias
Cellular Telephones
Pagers
Personal Digital Assistants
Electronic Games
Digital Cameras
Camcorders
Hand Held Instruments
PIN CONNECTIONS
V
out
V
in
C鈥?/div>
1
2
3
(Top View)
6
5
4
C+
SHDN
GND
Typical Applications
ORDERING INFORMATION
Device
NCP1729SN35T1
Package
TSOP鈥?
Shipping
3000 Tape & Reel
鈥揤
out
1
V
in
2
3
6
5
4
This device contains 77 active transistors.
Figure 1. Typical Application
漏
Semiconductor Components Industries, LLC, 2001
1
April, 2001 鈥?Rev. 1
Publication Order Number:
NCP1729/D

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