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Analog Devices Semiconductor Electronic Components Datasheet

ADP1714 Datasheet

CMOS Linear Regulator

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ADP1714 pdf
FEATURES
Maximum output current: 300 mA
Input voltage range: 2.5 V to 5.5 V
Light load efficient
IGND = 75 μA with 100 μA load
Low shutdown current: <1 μA
Very low dropout voltage: 170 mV @ 300 mA load
www.DataSheeItn4iUti.acol amccuracy: ±1%
Accuracy over line, load, and temperature: ±2%
16 fixed output voltage options with soft start:
0.75 V to 3.3 V (ADP1712)
Adjustable output voltage option: 0.8 V to 5.0 V
(ADP1712 Adjustable)
16 fixed output voltage options with reference bypass:
0.75 V to 3.3 V (ADP1713)
16 fixed output voltage options with tracking:
0.75 V to 3.3 V (ADP1714)
Low output noise: 40 μV rms
High PSRR: 72 dB @ 1 kHz
Stable with small 2.2 μF ceramic output capacitor
Excellent load/line transient response
Current limit and thermal overload protection
Logic controlled enable
5-lead TSOT package
APPLICATIONS
Mobile phones
Digital camera and audio devices
Portable and battery-powered equipment
Post dc-dc regulation
GENERAL DESCRIPTION
The ADP1712/ADP1713/ADP1714, available in a tiny, 5-lead
TSOT package, are low dropout linear regulators that operate
from 2.5 V to 5.5 V and provide up to 300 mA of output current.
The low 170 mV dropout voltage at a 300 mA load improves
efficiency and allows operation over a wide input voltage range.
Using a novel scaling architecture, ground current is a very low
75 μA when driving a 100 μA load, making the ADP1712/
ADP1713/ADP1714 ideal for battery-operated portable equipment.
The ADP1712/ADP1713/ADP1714 are available in 16 fixed
output voltage options. The ADP1712 is also available in an
adjustable version, which allows output voltages that range from
0.8 V to 5 V via an external divider. The ADP1712 fixed version
allows an external capacitor to be connected to program the
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
300 mA, Low Dropout
CMOS Linear Regulator
ADP1712/ADP1713/ADP1714
TYPICAL APPLICATION CIRCUITS
VIN = 5V
2.2µF
ADP1712
1 IN
VOUT = 3.3V
OUT 5
2 GND
2.2µF
3 EN
10nF
SS 4
Figure 1. ADP1712 with Fixed Output Voltage and Soft-Start Capacitor, 3.3 V
VIN = 5.5V
2.2µF
ADP1712
ADJUSTABLE
1 IN
OUT
VOUT = 0.8V(1 + R1/R2)
5
2 GND
3 EN
ADJ 4
2.2µF
R1
R2
Figure 2. ADP1712 with Adjustable Output Voltage, 0.8 V to 5.0 V
VIN = 3V
2.2µF
ADP1713
1 IN
VOUT = 0.75V
OUT 5
2 GND
3 EN
10nF
BYP 4
2.2µF
Figure 3. ADP1713 with Fixed Output Voltage and Bypass Capacitor, 0.75 V
VIN = 3V
2.2µF
ADP1714
1 IN
OUT 5
2 GND
VOUT VOUT (V)
2.2µF
3
2
3 EN
TRK 4
0V TO 5V
1
0 12345
VTRK (V)
Figure 4. ADP1714 with Output Voltage Tracking
soft-start time. The ADP1713 allows a reference bypass capacitor
to be connected, which reduces output voltage noise and
improves power supply rejection. The ADP1714 includes a
tracking feature, which allows the output to follow an external
voltage rail or reference.
The ADP1712/ADP1713/ADP1714 are optimized for stable
operation with small 2.2 μF ceramic output capacitors, allowing
good transient performance while occupying minimal board
space. An enable pin controls the output voltage on all devices,
and an undervoltage lockout circuit disables the regulator if IN
drops below a minimum threshold. The parts also have short
circuit protection and thermal overload protection, which
prevent damage to the devices in adverse conditions.
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
©2007 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

ADP1714 Datasheet

CMOS Linear Regulator

No Preview Available !

ADP1714 pdf
ADP1712/ADP1713/ADP1714
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Typical Application Circuits............................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 5
Thermal Resistance ...................................................................... 5
www.DataSheet4U.com
ESD Caution.................................................................................. 5
Pin Configurations and Function Descriptions ........................... 6
Typical Performance Characteristics ............................................. 7
Theory of Operation ...................................................................... 10
Soft-Start Function (ADP1712)................................................ 10
Adjustable Output Voltage (ADP1712 Adjustable) ............... 11
REVISION HISTORY
1/07—Revision 0: Initial Version
Bypass Capacitor (ADP1713) ................................................... 11
Track Mode (ADP1714) ............................................................ 11
Enable Feature ............................................................................ 11
Undervoltage Lockout (UVLO) ............................................... 11
Application Information................................................................ 12
Capacitor Selection .................................................................... 12
Current Limit and Thermal Overload Protection ................. 12
Thermal Considerations............................................................ 13
Printed Circuit Board Layout Considerations ....................... 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 15
Rev. 0 | Page 2 of 16


Part Number ADP1714
Description CMOS Linear Regulator
Maker Analog Devices
Total Page 16 Pages
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