ADP1720ARMZ-5-R7 Analog Devices Inc, ADP1720ARMZ-5-R7 Datasheet

IC REG LDO HV 50MA 5.0V 8-MSOP

ADP1720ARMZ-5-R7

Manufacturer Part Number
ADP1720ARMZ-5-R7
Description
IC REG LDO HV 50MA 5.0V 8-MSOP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of ADP1720ARMZ-5-R7

Design Resources
Using AD7150 for Proximity Sensing Appls (CN0095) 4 mA-to-20 mA Loop-Powered Temperature Monitor Using ADuC7060/1 (CN0145)
Regulator Topology
Positive Fixed
Voltage - Output
5V
Voltage - Input
Up to 28V
Voltage - Dropout (typical)
0.275V @ 50mA
Number Of Regulators
1
Current - Output
50mA (Max)
Current - Limit (min)
55mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Primary Input Voltage
28V
Output Voltage Fixed
5V
Dropout Voltage Vdo
275mV
No. Of Pins
8
Output Current
50mA
Operating Temperature Range
-40°C To +125°C
Msl
MSL 1 - Unlimited
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
ADP1720-5-EVALZ - BOARD EVAL FOR ADP1720-5ADP1720-EVALZ - BOARD EVAL FOR ADP1720-ADJADP1720-3.3-EVALZ - BOARD EVAL FOR ADP1720-3.3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
ADP1720ARMZ-5-R7TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ADP1720ARMZ-5-R7
Quantity:
88
FEATURES
Wide input voltage range: 4 V to 28 V
Maximum output current: 50 mA
Low light load current:
Low shutdown current: 0.7 μA
Low dropout voltage: 275 mV @ 50 mA load
Initial accuracy: ±0.5%
Accuracy over line, load, and temperature: ±2%
Stable with small 1μF ceramic output capacitor
Fixed 3.3 V and 5.0 V output voltage options
Adjustable output voltage option: 1.225 V to 5.0 V
Current limit and thermal overload protection
Logic controlled enable
Space-saving thermally enhanced MSOP package
APPLICATIONS
DC-to-DC post regulation
PCMCIA regulation
Keep-alive power in portable equipment
Industrial applications
GENERAL DESCRIPTION
The ADP1720 is a high voltage, micropower, low dropout linear
regulator. Operating over a very wide input voltage range of 4 V
to 28 V, the ADP1720 can provide up to 50 mA of output current.
With just 28 μA of quiescent supply current and a micropower
shutdown mode, this device is ideal for applications that require
low quiescent current.
The ADP1720 is available in fixed output voltages of 3.3 V and
5.0 V. An adjustable version is also available, which allows the
output to be set anywhere between 1.225 V and 5.0 V. An enable
function that allows external circuits to turn on and turn off the
ADP1720 output is available. For automatic startup, the enable
(EN) pin can be connected directly to the input rail.
Rev. A
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.
Trademarks and registered trademarks are the property of their respective owners.
28 μA at 0 μA load
35 μA at 100 μA load
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The ADP1720 is optimized for stable operation with small 1 μF
ceramic output capacitors, allowing for good transient perform-
ance while occupying minimal board space.
The ADP1720 operates from –40°C to +125°C and uses current
limit protection and thermal overload protection circuits to
prevent damage to the device in adverse conditions.
Available in a small thermally enhanced MSOP package, the
ADP1720 provides a compact solution with low thermal resistance.
Micropower Linear Regulator
Figure 2. ADP1720 with Adjustable Output Voltage, 1.225 V to 5.0 V
1.225V(1 + R1/R2)
Figure 1. ADP1720 with Fixed Output Voltage, 5.0 V
V
TYPICAL APPLICATION CIRCUITS
V
OUT
IN
V
= 28V
IN
= 5V
V
OUT
= 12V
1µF
=
50 mA, High Voltage,
1µF
1µF
©2007 Analog Devices, Inc. All rights reserved.
1µF
R2
R1
1
2
3
4
ADP1720
GND
IN
OUT
EN
1
2
3
4
FIXED
ADJUSTABLE
ADP1720
ADJ
IN
OUT
EN
GND
GND
GND
GND
GND
GND
GND
GND
8
7
6
5
ADP1720
8
7
6
5
www.analog.com

Related parts for ADP1720ARMZ-5-R7

ADP1720ARMZ-5-R7 Summary of contents

Page 1

FEATURES Wide input voltage range Maximum output current Low light load current: 28 μ μA load 35 μA at 100 μA load Low shutdown current: 0.7 μA Low dropout voltage: 275 ...

Page 2

ADP1720 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 ESD Caution .................................................................................. 5 Pin ...

Page 3

SPECIFICATIONS 100 μ μ OUT IN OUT Table 1. Parameter Symbol INPUT VOLTAGE RANGE V IN OPERATING SUPPLY CURRENT I GND SHUTDOWN CURRENT I GND-SD OUTPUT Fixed ...

Page 4

ADP1720 Parameter Symbol POWER SUPPLY REJECTION RATIO PSRR 1 Accuracy when OUT is connected directly to ADJ. When OUT voltage is set by external feedback resistors, absolute accuracy in adjust mode depends on the tolerances of resistors used. 2 Based ...

Page 5

ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Rating IN to GND –0 +30 V OUT to GND –0 (whichever is less GND –0 +30 V ADJ to GND –0.3 ...

Page 6

ADP1720 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS GND 1 ADP1720 IN 2 FIXED OUT 3 TOP VIEW (Not to Scale Figure 3. 8-Lead MSOP Table 4. Pin Function Descriptions ADP1720 ADP1720 Fixed Adjustable Pin No. Pin No. Mnemonic 1 ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS 100 μ OUT OUT 5.03 5.02 5.01 5.00 4. 10µA 4.98 LOAD I = 100µA LOAD I = 1mA LOAD I = 10mA ...

Page 8

ADP1720 300 250 200 150 100 (mA) LOAD Figure 11. Dropout Voltage vs. Load Current 5. 1mA LOAD 5.00 4.95 4. 50mA LOAD 4. 25mA LOAD 4. ...

Page 9

–10 OUT C = 1µF OUT V = 50mV –20 RIPPLE –30 –40 1mA –50 –60 100µA –70 –80 –90 –100 10 100 1k 10k 100k FREQUENCY (Hz) Figure 15. Power Supply ...

Page 10

ADP1720 THEORY OF OPERATION The ADP1720 is a low dropout, BiCDMOS linear regulator that operates from input rail and provides output current. Ground current in shutdown mode is typically ...

Page 11

APPLICATIONS INFORMATION CAPACITOR SELECTION Output Capacitor The ADP1720 is designed for operation with small, space-saving ceramic capacitors, but it functionswith most commonly used capacitors as long as care is taken about the effective series resistance (ESR) value. The ESR of ...

Page 12

ADP1720 THERMAL CONSIDERATIONS To guarantee reliable operation, the junction temperature of the ADP1720 must not exceed 125°C. To ensure the junction tem- perature stays below this maximum value, the user needs to be aware of the parameters that contribute to ...

Page 13

MAX T (DO NOT OPERATE ABOVE THIS POINT) J 120 100 1mA 10mA 30mA 50mA 5mA 20mA 40mA (LOAD CURRENT – V (V) IN OUT 2 Figure ...

Page 14

ADP1720 PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS Heat dissipation from the package can be improved by increasing the amount of copper attached to the pins of the ADP1720. How- ever, as can be seen from Table 5, a point of diminishing ...

Page 15

... OUTLINE DIMENSIONS ORDERING GUIDE Model Temperature Range 1 ADP1720ARMZ-5-R7 –40°C to +125°C 1 ADP1720ARMZ-3.3-R7 –40°C to +125°C 1 ADP1720ARMZ-R7 –40°C to +125°C 1 ADP1720-5-EVALZ 1 ADP1720-3.3-EVALZ 1 ADP1720-EVALZ RoHS Compliant Part. 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 2. PIN 1 0.65 BSC 0.95 0.85 1.10 MAX 0.75 8° ...

Page 16

ADP1720 NOTES ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06111-0-7/07(A) Rev Page ...

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