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LM2622 bảng dữ liệu(PDF) 1 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  LM2622 600kHz/1.3MHz Step-up PWM DC/DC Converter
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LM2622 bảng dữ liệu(HTML) 1 Page - Texas Instruments

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LM2622
RFB!
40.2k
L
10uH
CC
2.2nF
D
RC
24k
CIN
22UF
COUT
22uF
RFB2
7.5k
SHDN
3
VIN
6
SW
5
FSLCT
7
FB
2
GND
4
VC
1
8V
2.7V - 3.3V
Battery or
Power
Source
LM2622
www.ti.com
SNVS068E – MAY 2000 – REVISED MARCH 2013
LM2622 600kHz/1.3MHz Step-up PWM DC/DC Converter
Check for Samples: LM2622
1
FEATURES
DESCRIPTION
The LM2622 is a step-up DC/DC converter with a
2
1.6A, 0.2
Ω, Internal Switch
1.6A,
0.2
Ω
internal
switch
and
pin
selectable
Operating Voltage as Low as 2.0V
operating frequency. With the ability to convert 3.3V
600kHz/1.3MHz Pin Selectable Frequency
to multiple outputs of 8V, -8V, and 23V, the LM2622
Operation
is an ideal part for biasing TFT displays. The LM2622
can be operated at switching frequencies of 600kHz
Over Temperature Protection
and 1.3MHz allowing for easy filtering and low noise.
8-Lead VSSOP Package
An external compensation pin gives the user flexibility
in setting frequency compensation, which makes
APPLICATIONS
possible
the
use
of
small,
low
ESR
ceramic
capacitors at the output. The LM2622 is available in a
TFT Bias Supplies
low profile 8-lead VSSOP package.
Handheld Devices
Portable Applications
GSM/CDMA Phones
Digital Cameras
Typical Application Circuit
Figure 1. 600 kHz Operation
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2000–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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