Analog Devices ADP3342JRM-REEL7, ADP3342ARM-REEL7 Datasheet

Ultralow, IQ, anyCAP

®

a

FEATURES
Accuracy Over Line and Load: ⴞ4.0% @ 25ⴗC,

ⴞ5% Over Temperature
Ultralow Dropout Voltage: 300 mV (Typ) @ 300 mA
Requires Only C
anyCAP = Stable with any Type of Capacitor

(including MLCC)
Current and Thermal Limiting
Low Shutdown Current: < 2 ␮A

1.7 V ⱕ V

IN

2.8 V ⱕ VCC ⱕ 6 V

= 1.2 V ⴞ5%

V

OUT

–40ⴗC to +100ⴗC Ambient Temperature Range
Ultrasmall Thermally Enhanced 8-Lead MSOP Package

APPLICATIONS
Notebook PCs
Desktop PCs

GENERAL DESCRIPTION

The ADP3342 is a unique member of the ADP330x family of
precision low dropout anyCAP voltage regulators. The ADP3342
operates with an input voltage range of 1.7 V to 6 V and delivers
a continuous load current up to 300 mA. In order to support the
ability to regulate from such a low input voltage, the power rail
to the IC, VCC, has been split off from the main power rail, VIN,
from which the output is powered.

The ADP3342 stands out from the conventional LDOs with the
lowest thermal resistance of any MSOP-8 package and an enhanced
process that enables it to offer performance advantages beyond
its competition. Its patented design requires only a 1.0 µF output
capacitor for stability. This device is insensitive to output capacitor
Equivalent Series Resistance (ESR), and is stable with any good
quality capacitor, including ceramic (MLCC) types for space­restricted applications. The dropout voltage of the ADP3342 is
only 190 mV (typical) at 300 mA. This device also includes a
safety current limit, thermal overload protection and a shutdown
control pin.

= 1.0 ␮F for Stability

O

ⱕ 6 V

VCC

PWRGD

SD

Low Dropout Regulator

FUNCTIONAL BLOCK DIAGRAM

IN

THERMAL

PROTECTION

ADP3342

V

IN

1.8V
1␮F

OFF

+

ON

Figure 1. Typical Application Circuit

Q1

DRIVER

GND

3.3V

VCC

ADP3342

IN

OUT

IN

OUT

PWRGD

SD

GND

CC

ADP3342

OUT

g

m

BANDGAP +

REF –

V

OUT

1.2V

+

1␮F

anyCAP is a registered trademark of Analog Devices, Inc.

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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. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] © Analog Devices, Inc., 2002

ADP3342–SPECIFICATIONS

(VCC = 3.0 V, VIN = 1.8 V, CIN = C
+100ⴗC, unless otherwise noted.)

= 1 ␮F, TA = 0ⴗC to 100ⴗC and TA = –40ⴗC to

OUT

Parameter Symbol Conditions Min Typ Max Unit

OUTPUT

Voltage Accuracy V

OUT

Line Regulation VCC = 2.8 V to 6 V, V

Load Regulation I

Dropout Voltage V

DROP

VCC = 2.8 V to 6 V, VIN = 1.7 V to 6 V –4.0 +4.0 %

= 0.1 mA to 300 mA

I

L

T

= 25°C

A

VCC = 2.8 V to 6 V, V

= 0.1 mA to 300 mA,

I

L

T

= –40°C to +100°C

A

= 25°C

T

A

= 0.1 mA to 300 mA 0.12 mV/mA

L

T

= 25°C

A

V

= 98% of V

OUT

= 1.7 V to 6 V –5.0 +5.0 %

IN

= 1.7 V to 6 V 0.04 mV/V

IN

OUTNOM

IL = 300 mA 190 450 mV
I

= 200 mA 125 mV

L

= 100 mA 70 mV

I
Current Limiting I
Output Noise V

LIM

NOISE

L

VCC = 3 V, VIN = 1.8 V 450 mA

f = 10 Hz–100 kHz, CL = 1 µF60µV rms

IL = 300 mA

OPERATING CURRENTS

Ground Current in Regulation I

GND

VCC Current in Regulation IVCC I
Ground Current in Shutdown I

GNDSD

IL = 300 mA, TA = –40°C to +100°C 3.0 8.5 mA

I

= 300 mA, TA = 0°C to 100°C 3.0 6.0 mA

L

I

= 300 mA, TA = 25°C 3.0 4.0 mA

L

= 200 mA 2.0 mA

I

L

I

= 0.1 mA 100 175 µA

L

= 300 mA 100 170 µA

L

SD = 0 V, VCC = 6 V, VIN = 1.8 V 0.01 2 µA

SHUTDOWN

Threshold Voltage V

THSD

ON VCC – 0.9 V

OFF 0.6 V
SD Input Current I
Output Current In Shutdown I

SD

OSD

0 ≤ SD ≤ 6 V 1.4 7 µA

TA = 25°C VCC = 6 V, VIN = 6 V 0.01 1 µA

TA = 100°C VCC = 6 V, VIN = 6 V 0.01 2 µA

PWRGD

Power Good Output Voltage I

PWRGDL

V

PWRGDL

V

PWRGDH

Power Good On Time Delay TD1

TD2

Power Good Off Time Delay TD3

V

= 1.2 V, VCC = 3.0 V 0.85 1.5 mA

PWRGD

2

I

= 300 µA 0.4 V

PWRGD

2

I

= 300 µA VCC – 0.4 V

3

4

5

PWRGD

IL = 3 mA to 300 mA, 5 300 µs

= 1 µF to 10 µF

C

OUT

IL = 3 mA to 300 mA, 50 300 µs

C

= 1 µF to 10 µF

OUT

IL = 3 mA to 300 mA, 0.05 1 µs

C

= 1 µF to 10 µF

OUT

THERMAL PROTECTION

Shutdown Temperature TH

NOTES

1

Ambient temperature of 100°C corresponds to a junction temperature of 125°C under typical full load test conditions.

2

V

, V

PWRGDL

3

TD1: Delay time from V

4

TD2: Delay time from SD high to PWRGD high. Guaranteed by design.

5

TD3: Delay time between SD low to PWRGD low. Guaranteed by design.

Specifications subject to change without notice.

,: Powergood output voltages. Guaranteed by design and characterization.

PWRGDH

crossing 1 V to PWRGD high. Guaranteed by design.

OUT

PROTIL

= 100 mA 165 °C

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ADP3342

TOP VIEW

(Not to Scale)

8

7

6

5

1

2

3

4

VCC

OUT

OUT

GND

IN

ADP3342

SD

PWRGD

IN

WARNING!

ESD SENSITIVE DEVICE

ABSOLUTE MAXIMUM RATINGS*

Input Supply Voltage . . . . . . . . . . . . . . . . . . . –0.3 V to +13 V

Shutdown Input Voltage . . . . . . . . . . . . . . . . –0.3 V to +13 V

Power Dissipation . . . . . . . . . . . . . . . . . . . Internally Limited

Operating Ambient Temperature Range . . . –40°C to +100°C
Operating Junction Temperature Range . . . –40°C to +125°C

(2-layer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157°C/W

␪

JA

␪

(4-layer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121°C/W

JA

␪

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56°C/W

JC

Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C

Lead Temperature Range (Soldering 10 sec) . . . . . . . . 300°C

Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . 215°C

Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C

*This is a stress rating only; operation beyond these limits can cause the device

to be permanently damaged.

ORDERING GUIDE

Model Output Voltage* Package Option Marking Code Temperature Range

ADP3342JRM-REEL7 1.2 V RM-8 (MSOP-8) LJA 0°C to 100°C
ADP3342ARM-REEL7 1.2 V RM-8 (MSOP-8) LJB –40°C to +100°C

*Contact the factory for other output voltage options.

PIN FUNCTION DESCRIPTIONS

PIN CONFIGURATION

Pin No. Mnemonic Function

1, 2 OUT Output of the Regulator. Bypass to ground with a 1.0 µF or larger capacitor. All pins must be

connected together for proper operation.

3 VCC Supply Voltage

4 GND Ground Pin

5 PWRGD Power Good. Used to indicate output is in regulation.

6 SD Active Low Shutdown Pin. Connect to ground to disable the regulator output. When shut down

is not used, this pin should be connected to the input pin.

7, 8 IN Regulator Input. All pins must be connected together for proper operation.

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the ADP3342 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.

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