Analog Devices ADP3335ARM-5, ADP3335ARM-3.3, ADP3335ARM-2.85, ADP3335ARM-2.5, ADP3335ARM-1.8 Datasheet

High Accuracy Ultralow IQ, 500 mA

a

FEATURES
High Accuracy Over Line and Load: ⴞ0.9% @ 25ⴗC,

ⴞ1.8% Over Temperature
Ultralow Dropout Voltage: 200 mV (Typ) @ 500 mA
Requires Only C
anyCAP = Stable with Any Type of Capacitor

(Including MLCC)
Current and Thermal Limiting
Low Noise
Low Shutdown Current: < 1.0 ␮A

2.6 V to 12 V Supply Range
–40ⴗC to +85ⴗC Ambient Temperature Range
Ultrasmall Thermally-Enhanced 8-Lead MSOP Package

APPLICATIONS
PCMCIA Card
Cellular Phones
Camcorders, Cameras
Networking Systems, DSL/Cable Modems
Cable Set-Top Box
MP3/CD Players
DSP Supply

GENERAL DESCRIPTION

The ADP3335 is a member of the ADP330x family of precision
low dropout anyCAP voltage regulators. The ADP3335 operates
with an input voltage range of 2.6 V to 12 V and delivers a con­tinuous load current up to 500 mA. The ADP3335 stands out
from 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 sta-
bility. This device is insensitive to output capacitor Equivalent
Series Resistance (ESR), and is stable with any good quality
capacitor, including ceramic (MLCC) types for space-restricted
applications. The ADP3335 achieves exceptional accuracy of
± 0.9% at room temperature and ±1.8% over temperature, line,
and load. The dropout voltage of the ADP3335 is only 200 mV
(typical) at 500 mA. This device also includes a safety current
limit, thermal overload protection and a shutdown feature. In
shutdown mode, the ground current is reduced to less than
1 µA. The ADP3335 has ultralow quiescent current 80 µA
(typical) in light load situations.

= 1.0 ␮F for Stability

O

anyCAP

IN

THERMAL

PROTECTION

SD

V

IN

Figure 1. Typical Application Circuit

®

Low Dropout Regulator

ADP3335

FUNCTIONAL BLOCK DIAGRAM

Q1

C

1␮F

ADP3335

CC

OUT

OUT

OUT

GND

g

m

BANDGAP

+

C
1␮F

REF

OUT

DRIVER

GND

NR

ADP3335

IN

IN

+

IN

OFF

SD

ON

R1

R2

V

OUT

OUT

NR

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
which 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] World Wide Web Site: http://www.analog.com
Fax: [phone] © Analog Devices, Inc., 2000

1, 2, 3

ADP3335–SPECIFICATIONS

(VIN = 6.0 V, CIN = C

Parameter Symbol Conditions Min Typ Max Unit

OUTPUT

Voltage Accuracy

Line Regulation

Load Regulation I

Dropout Voltage V

4

4

V

OUT

DROP

VIN = V
I
T
V
I
T
V
I
T
VIN = V
I
T

T
V

OUT(NOM)

= 0.1 mA to 500 mA

L

= 25°C

A

= V

IN

OUT(NOM)

= 0.1 mA to 500 mA

L

= 85°C

A

= V

IN

OUT(NOM)

= 0.1 mA to 500 mA

L

= 150°C

J

OUT(NOM)

= 0.1 mA

L

= 25°C

A

= 0.1 mA to 500 mA 0.04 mV/mA

L

= 25°C

A

= 98% of V

OUT

+ 0.4 V to 12 V –0.9 +0.9 %

+ 0.4 V to 12 V –1.8 +1.8 %

+ 0.4 V to 12 V –2.3 +2.3 %

+ 0.4 V to 12 V 0.04 mV/V

OUT(NOM)

IL = 500 mA 200 370 mV
I

= 300 mA 140 230 mV

L

I

= 50 mA 30 110 mV

L

= 0.1 mA 10 40 mV

I
Peak Load Current I
Output Noise V

LDPK

NOISE

L

VIN = V

OUT(NOM)

+ 1 V 800 mA

f = 10 Hz–100 kHz, CL = 10 µF47µV rms

= 500 mA, CNR = 10 nF

I

L

f = 10 Hz–100 kHz, C

IL = 500 mA, CNR = 0 nF

GROUND CURRENT

In Regulation I

In Dropout I

In Shutdown I

GND

GND

GNDSD

IL = 500 mA 4.5 10 mA

I

= 300 mA 2.6 6 mA

L

I

= 50 mA 0.5 2.5 mA

L

= 0.1 mA 80 110 µA

I

L

VIN = V

I

= 0.1 mA

L

OUT(NOM)

– 100 mV 120 400 µA

SD = 0 V, VIN = 12 V 0.01 1 µA

SHUTDOWN

Threshold Voltage V

THSD

ON 2.0 V

OFF 0.4 V
SD Input Current I
Output Current In Shutdown I

SD
OSD

0 ≤ SD ≤ 5 V 1.2 3 µA

TA = 25°C, VIN = 12 V 1.2 5 µA

TA = 85°C, VIN = 12 V 1.2 5 µA

NOTES

1

All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC) methods.

2

Ambient temperature of 85°C corresponds to a junction temperature of 125 °C under pulsed full load test conditions.

3

Application stable with no load.

4

VIN = 2.6 V to 12 V for models with V

Specifications subject to change without notice.

OUT(NOM)

≤ 2.2 V.

= 1.0 ␮F, TA = –40ⴗC to +85ⴗC, unless otherwise noted)

OUT

= 10 µF95µV rms

L

–2–

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ADP3335

TOP VIEW

(Not to Scale)

8

7

6

5

1

2

3

4

SD

IN

IN

OUT

ADP3335

NR

OUT

OUT

GND

WARNING!

ESD SENSITIVE DEVICE

ABSOLUTE MAXIMUM RATINGS*

Input Supply Voltage . . . . . . . . . . . . . . . . . . . –0.3 V to +16 V

Shutdown Input Voltage . . . . . . . . . . . . . . . . –0.3 V to +16 V

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

Operating Ambient Temperature Range . . . . –40°C to +85°C

Operating Junction Temperature Range . . . –40°C to +150°C

2-layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153°C/W

θ

JA

θ

4-layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110°C/W

JA

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.

PIN FUNCTION DESCRIPTIONS

Pin
No. Mnemonic Function

1, 2, 3 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.
4 GND Ground Pin.
5 NR Noise Reduction Pin. Used for further

reduction of output noise (see text for

detail).

Capacitor required if C

> 3.3 µF.

OUT

6 SD Active Low Shutdown Pin. Connect to

ground to disable the regulator output.

When shutdown is not used, this pin

should be connected to the input pin.
7, 8 IN Regulator Input. All pins must be con-

nected together for proper operation.

PIN CONFIGURATION

ORDERING GUIDE

Output Package Branding

Model Voltage* Option Information

ADP3335ARM-1.8 1.8 V RM-8 (MSOP-8) LFA
ADP3335ARM-2.5 2.5 V RM-8 (MSOP-8) LFC
ADP3335ARM-2.85 2.85 V RM-8 (MSOP-8) LFD
ADP3335ARM-3.3 3.3 V RM-8 (MSOP-8) LFE
ADP3335ARM-5 5 V RM-8 (MSOP-8) LFF

*Contact the factory for other output voltage options.

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 ADP3335 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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