Analog Devices ADP3333ARM-5, ADP3333ARM-3.3, ADP3333ARM-3.15, ADP3333ARM-3, ADP3333ARM-2.77 Datasheet

a

THERMAL

PROTECTION

CC

IN

ADP3333

OUT

GND

Q1

BANDGAP

REF

DRIVER

g

m

SD

R1

R2

High Accuracy Ultralow IQ, 300 mA,

®

anyCAP

Low Dropout Regulator

ADP3333

FEATURES
High Accuracy Over Line and Load: 0.8% @ 25C,

1.8% Over Temperature
Ultralow Dropout Voltage: 230 mV (Max) @ 300 mA
Requires Only C

= 1.0 F for Stability

O

anyCAP = Stable with Any Type of Capacitor

(Including MLCC)
Current and Thermal Limiting
Low Noise
Low Shutdown Current: < 1 A

2.6 V to 12 V Supply Range
–40C to +85C Ambient Temperature Range
Ultrasmall 8-Lead MSOP Package

APPLICATIONS
Cellular Phones
PCMCIA Cards
Personal Digital Assistants (PDAs)
DSP/ASIC Supplies

GENERAL DESCRIPTION

ADP3333 is a member of the ADP333x family of precision low
dropout anyCAP voltage regulators. Pin-compatible with the
MAX8860, the ADP3333 operates with a wider input voltage
range of 2.6 V to 12 V and delivers a load current up to 300 mA.
ADP3333 stands out from other conventional LDOs with a
novel architecture and an enhanced process that enables it to
offer performance advantages over 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 space-restricted applica­tions. ADP3333 achieves exceptional accuracy of ±0.8% at
room temperature and ±1.8% over temperature, line and load
variations. The dropout voltage of ADP3333 is only 140 mV
(typical) at 300 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 ADP3333 has ultralow quiescent current, 70 µA (typ)
in light load situations.

FUNCTIONAL BLOCK DIAGRAM

ADP3333

V

IN

C

IN

1F

IN

SD

OFF

ON

NC

OUT

GND

NC = NO CONNECT

Figure 1. Typical Application Circuit

C
1F

OUT

V

OUT

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., 2001

1

ADP3333–SPECIFICA TIONS

(VIN = 6.0 V, CIN = C

Parameter Symbol Condition Min Typ Max Unit

OUTPUT

Voltage Accuracy

Line Regulation
Load Regulation I
Dropout Voltage V

2

2

V

OUT

DROP

VIN = V
I
T
V
I
VIN = V
T

T
V

OUTNOM

= 0.1 mA to 300 mA

L

= 25°C

J

= V

IN

OUTNOM

= 0.1 mA to 300 mA

L

OUTNOM

= 25°C

J

= 0.1 mA to 300 mA 0.04 mV/mA

L

= 25°C

J

= 98% of V

OUT

IL = 300 mA 140 230 mV
I

= 200 mA 105 185 mV

L

= 0.1 mA 30 mV

I

L

Peak Load Current I
Output Noise V

LDPK

NOISE

VIN = V

OUTNOM

f = 10 Hz–100 kHz, CL = 10 µF45µV rms
IL = 300 mA

GROUND CURRENT

In Regulation I

In Dropout I

In Shutdown I

GND

GND

GNDSD

IL = 300 mA 2.0 5.5 mA
I

= 300 mA, TJ = 25°C 2.0 4.3 mA

L

= 300 mA, TJ = 85°C 1.5 3.3 mA

I

L

I

= 200 mA 1.4 mA

L

I

= 10 mA 200 275 µA

L

= 0.1 mA 70 100 µA

I

L

VIN = V
I
V
I

OUTNOM

= 0.1 mA,

L

= V

IN

OUTNOM

= 0.1 mA, TJ = 0°C to 125°C

L

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

SD

0 ≤ SD ≤ 12 V 0.85 7 µA
0 ≤ SD ≤ 5 V 0.8 4.5 µA

Output Current In Shutdown I

OSD

TJ = 25°C VIN = 12 V 0.01 1 µA
TJ = 125°C VIN = 12 V 0.01 1 µA

NOTES

1

Application stable with no load.

2

VIN = 2.6 V for models with V

Specifications subject to change without notice.

OUTNOM

≤ 2.3 V.

= 1.0 F, TJ = –40C to +125C, unless otherwise noted)

OUT

0.3 V to 12 V 0.8 0.8 %

0.3 V to 12 V –1.8 +1.8 %

0.3 V to 12 V 0.04 mV/V

OUTNOM

+ 1 V 600 mA

– 100 mV 70 190 µA
– 100 mV 70 160 µA

–2–

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ADP3333

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 +125°C

␪

(4-layer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158°C/W

JA

(2-layer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C/W

␪

JA

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

Lead Temperature (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

Output Package Branding

Model Voltage Option Information

ADP3333ARM-1.5 1.5 V RM-8 LKA

(MSOP-8)

ADP3333ARM-1.8 1.8 V RM-8 LKB

(MSOP-8)

ADP3333ARM-2.5 2.5 V RM-8 LKC

(MSOP-8)

ADP3333ARM-2.77 2.77 V RM-8 LKD

(MSOP-8)

ADP3333ARM-3 3 V RM-8 LKE

(MSOP-8)

ADP3333ARM-3.15 3.15 V RM-8 LKF

(MSOP-8)

ADP3333ARM-3.3 3.3 V RM-8 LKG

(MSOP-8)

ADP3333ARM-5 5 V RM-8 LKH

(MSOP-8)

PIN FUNCTION DESCRIPTIONS

Pin Mnemonic Function

1 OUT Output of the Regulator. Bypass to ground

with a 1.0 µF or larger capacitor.

2 IN Input pin. Bypass to ground with a 1.0 µF

or larger capacitor.
3 GND Ground Pin
4–6, 8 NC No Connect
7 SD Active Low Shutdown Pin. Connect to

ground to disable the regulator output.

When shutdown is not used, his pin should

be connected to the input pin

PIN CONFIGURATION

1

OUT

2

IN

ADP3333

TOP VIEW

3

GND

(Not to Scale)

4

NC*

NC = NO CONNECT

*CAN BE CONNECTED
TO ANY OTHER PIN.

8

NC

7

SD

6

NC

5

NC

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 ADP3333 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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