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ADP1614-1.3-EVALZ データシート(PDF) 1 Page - Analog Devices

部品番号 ADP1614-1.3-EVALZ
部品情報  650 kHz/1.3 MHz, 4 A, Step-Up
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

ADP1614-1.3-EVALZ データシート(HTML) 1 Page - Analog Devices

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650 kHz/1.3 MHz, 4 A, Step-Up,
PWM, DC-to-DC Switching Converter
Data Sheet
ADP1614
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2012 Analog Devices, Inc. All rights reserved.
FEATURES
Adjustable current limit, up to 4 A
2.5 V to 5.5 V input voltage range
650 kHz or 1.3 MHz fixed frequency option
Adjustable output voltage, up to 20 V
Adjustable soft start
Undervoltage lockout
Thermal shutdown
3 mm × 3 mm, 10-lead LFCSP
Supported by ADIsimPower design tool
APPLICATIONS
TFT LCD bias supplies
Portable applications
Industrial/instrumentation equipment
GENERAL DESCRIPTION
The ADP1614 is a step-up, dc-to-dc switching converter with
an integrated power switch capable of providing an output
voltage as high as 20 V. The ADP1614 is available with a pin-
adjustable current limit that is set via an external resistor. The
boost switching frequency is fixed to either 650 kHz or 1.3 MHz.
With a package height of 0.8 mm, the ADP1614 is optimal for
space constrained applications, such as portable devices or thin
film transistor (TFT) liquid crystal displays (LCDs).
The ADP1614 operates in current-mode pulse-width modulation
(PWM) with up to 94% efficiency. Adjustable soft start prevents
inrush currents when the part is enabled. The PWM current-mode
architecture allows excellent transient response, easy noise filtering,
and the use of small, cost-saving external inductors and capacitors.
Other key features include undervoltage lockout (UVLO), thermal
shutdown (TSD), and logic controlled enable.
The ADP1614 is available in a Pb-free, 10-lead lead frame chip
scale package (LFCSP).
TYPICAL APPLICATIONS CIRCUIT
ADP1614
8
3
9
10
6
2
1
VIN
EN
CLRES
SS
SW
7
SW
FB
COMP
ON
OFF
5
GND
4
GND
11
EP
VOUT
VIN
L1
CIN
CSS
COUT
CCOMP
RCOMP
RCL
R1
R2
D1
Figure 1. Step-Up Regulator Configuration


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