Analog Devices ADP3333 a Datasheet

High Accuracy Ultralow IQ, 300 mA,

THERMAL

PROTECTION

CC

IN

ADP3333

OUT

GND

Q1

BAND GAP

REF

DRIVER

g

m

SD

R1

R2

®

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 CO = 1.0 F for Stability

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

The ADP3333 is a member of the ADP333x family of precision
low dropout (LDO) any CAP 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.
with a

ADP3333 stands out from other conventional LDOs

novel architecture and an enhanced process that enables
it to offer performance advantages over its competition. Its
patented
stability. This

design requires only a 1.0 µF output capacitor for

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 ADP3333 achieves exceptional
accuracy of ±0.8% at room temperature and ±1.8% over
temperature, line, and load variations. The dropout voltage of
the 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

ON

OFF

NC

OUT

GND

NC = NO CONNECT

Figure 1. Typical Application Circuit

C
1F

OUT

V

OUT

REV. A

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may result from its use. No license is granted by implication or otherwise
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Tel: [phone] www.analog.com
Fax: [phone] © 2003 Analog Devices, Inc. All rights reserved.

ADP3333–SPECIFICATIONS

Parameter Symbol Condition Min Typ Max Unit

OUTPUT

Voltage Accuracy

Line Regulation

Load Regulation I

Dropout Voltage V

Peak Load Current I
Output Noise V

GROUND CURRENT

In Regulation I

In Dropout I

In Shutdown I

SHUTDOWN

Threshold Voltage V

SD Input Current I

Output Current in Shutdown I

NOTES

1

Application stable with no load.

2

VIN = 2.6 V for models with V

Specifications subject to change without notice.

2

2

OUTNOM

≤ 2.3 V.

V

OUT

DROP

LDPK

NOISE

GND

GND

GNDSD

THSD

SD

OSD

(VIN = 6.0 V, CIN = C

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

= 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

IL = 300 mA 140 230 mV

= 200 mA 105 185 mV

I

L

I

= 0.1 mA 30 mV

L

VIN = V

OUTNOM

+ 1 V 600 mA
f = 10 Hz to 100 kHz, CL = 10 µF45 µV rms
IL = 300 mA

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

= 200 mA 1.4 mA

I

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

– 100 mV 70 190 µA

– 100 mV 70 160 µA

SD = 0 V, VIN = 12 V 0.01 1 µA

ON 2.0 V
OFF 0.4 V
0 ⱕ SD ⱕ 12 V 0.85 7 µA
0 ⱕ SD ⱕ 5 V 0.8 4.5 µA
TJ = 25°C, VIN = 12 V 0.01 1 µA
TJ = 125°C, VIN = 12 V 0.01 1 µA

1

REV. A–2–

ADP3333

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.

PIN FUNCTION DESCRIPTIONS

Pin Mnemonic Function

1 OUT Output of the Regulator. Bypass to

or larger capacitor.
2IN 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, this 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.

ground with a 1.0 µF

8

NC

7

SD

6

NC

5

NC

ORDERING GUIDE

Model Output Voltage (V) Package Option Branding

ADP3333ARM-1.5-RL 1.5 RM-8 (MSOP-8) LKA
ADP3333ARM-1.5-RL7 1.5 RM-8 (MSOP-8) LKA
ADP3333ARM-1.8-RL 1.8 RM-8 (MSOP-8) LKB
ADP3333ARM-1.8-RL7 1.8 RM-8 (MSOP-8) LKB
ADP3333ARM-2.5-RL 2.5 RM-8 (MSOP-8) LKC
ADP3333ARM-2.5-RL7 2.5 RM-8 (MSOP-8) LKC
ADP3333ARM-2.77-RL 2.77 RM-8 (MSOP-8) LKD
ADP3333ARM-2.77-R7 2.77 RM-8 (MSOP-8) LKD
ADP3333ARM-3-REEL 3 RM-8 (MSOP-8) LKE
ADP3333-3-REEL7 3 RM-8 (MSOP-8) LKE
ADP3333ARM-3.15-RL 3.15 RM-8 (MSOP-8) LKF
ADP3333ARM-3.15-R7 3.15 RM-8 (MSOP-8) LKF
ADP3333ARM-3.3-RL 3.3 RM-8 (MSOP-8) LKG
ADP3333ARM-5-REEL 5 RM-8 (MSOP-8) LKH
ADP3333-5-REEL7 5 RM-8 (MSOP-8) LKH

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.

REV. A

–3–