MAXIM MAX882, MAX883, MAX884 User Manual

General Description

The MAX882/MAX883/MAX884 linear regulators maxi-

mize battery life by combining ultra-low supply currents
and low dropout voltages. They feature 200mA output
current capability at up to +125°C junction temperature
and come in a 1.5W SOIC package. The 1.5W package
(compared to 0.47W for standard SOIC packages)
allows a wider operating range for the input voltage and
output current. The MAX882/MAX883/MAX884 use a P­channel MOSFET pass transistor to maintain a low 11µA
(15µA max) supply current from no-load to the full
200mA output. Unlike earlier bipolar regulators, there are
no PNP base current losses that increase with output
current. In dropout, the MOSFET does not suffer from
excessive base currents that occur when PNP transistors
go into saturation. Typical dropout voltages are 220mV
at 5V and 200mA, or 320mV at 3.3V and 200mA.

The MAX882 features a 7µA standby mode that disables
the output but keeps the reference, low-battery compara­tor, and biasing circuitry alive. The MAX883/MAX884 fea­ture a shutdown (OFF) mode that turns off all circuitry,
reducing supply current to less than 1µA. All three
devices include a low-battery-detection comparator, fold­back current limiting, reverse-current protection, and
thermal-overload protection.

The output is preset at 3.3V for the MAX882/MAX884
and 5V for the MAX883. In addition, all devices employ
Dual Mode™ operation, allowing user-adjustable outputs
from 1.25V to 11V using external resistors. The input volt­age supply range is 2.7V to 11.5V.

For low-dropout linear regulators with output currents up
to 500mA, refer to the MAX603/MAX604 data sheet.

Applications

Pagers and Cellular Phones

3.3V and 5V Regulators

1.25V to 11V Adjustable Regulators
High-Efficiency Linear Regulators
Battery-Powered Devices
Portable Instruments
Solar-Powered Instruments

Features

♦ Foldback Current Limiting

♦ High-Power (1.5W) 8-Pin SO Package

♦ Dual Mode Operation: Fixed or Adjustable

Output from 1.25V to 11V

♦ Large Input Range (2.7V to 11.5V)
♦ Internal 1.1Ω P-Channel Pass Transistor

Draws No Base Current

♦ Low 220mV Dropout Voltage at 200mA

Output Current

♦ 11µA (typ) Quiescent Current

♦ 1µA (max) Shutdown Mode or 7µA (typ)

Standby Mode

♦ Low-Battery Detection Comparator

♦ Reverse-Current Protection

♦ Thermal-Overload Protection

MAX882/MAX883/MAX884

5V/3.3V or Adjustable, Low-Dropout,

Low IQ, 200mA Linear Regulators

________________________________________________________________ Maxim Integrated Products 1

Pin Configuration

Typical Operating Circuit

19-0275; Rev 2; 11/00

Ordering Information continued at end of data sheet.

*Dice are tested at T

J

= +25°C, DC parameters only.

Dual Mode is a trademark of Maxim Integrated Products.

MAX882
MAX883
MAX884

C

IN

O.1µF

C

OUT

2.2µF

OUTPUT
VOLTAGE

INPUT

VOLTAGE

BATTERY

LBI

OFF (STBY)

( ) ARE FOR MAX882.

IN

OUT

GNDSET

ON/OFF

For free samples and the latest literature, visit www.maxim-ic.com or phone [phone].
For small orders, phone [phone].

Ordering Information

PART

TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX882CPA 0°C to +70°C 8 PDIP P8-2

MAX882CSA 0°C to +70°C 8 SO S8-6F

MAX882C/D 0°C to +70°C Dice* —

MAX882EPA

8 PDIP P8-2

MAX882ESA

8 SO S8-6F

-40°C to +85°C

-40°C to +85°C

TOP VIEW

1

LBO

2

SET

GND

( ) ARE FOR MAX882.

OUT

MAX882

3

MAX883
MAX884

4

DIP/SO

8

7

6

5

LBI

OFF (STBY)

GND

IN

MAX882/MAX883/MAX884

5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 200mA Linear Regulators

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN= 6V (MAX883) or VIN= 4.3V (MAX882/MAX884), C

OUT

= 2.2µF, STBY or OFF = VIN, SET = GND, LBI = VIN, TJ= -40°C to

+85°C, unless otherwise noted. Typical values are at T

J

= +25°C.) (Note 1)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

Supply Voltage (IN or OUT to GND).......................-0.3V to +12V

Output Short-Circuit Duration ...............................................1min

Continuous Output Current ...............................................300mA

LBO Output Current............................................................50mA

LBO Output Voltage and LBI,

SET, STBY, OFF Input Voltages ............-0.3V to the greater of

(IN + 0.3V) or (OUT + 0.3V)

Continuous Power Dissipation (T

J

= +70°C)

Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW

High-Power SO (derate 18.75mW/°C above +70°C) .......1.5W

CERDIP (derate 8.00mW/°C above +70°C).................640mW

Operating Temperature Ranges

MAX88_C_A........................................................0°C to +70°C

MAX88_E_A .....................................................-40°C to +85°C

Junction Temperature .....................................................+150°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

MAX88_C_A 2.7

MAX88_E_A 2.9

Input Voltage Range V

IN

SET = OUT, RL =
1kΩ

MAX88_MJA 3.0

V

0°C ≤ TJ ≤ +85°C

MAX883,

-40°C ≤ TJ ≤ +85°C

0°C ≤ T

J

≤ +85°C

Output Voltage (Note 2) V

OUT

MAX882/MAX884,

-40°C ≤ TJ ≤ +85°C

V

MAX883C_A/E_A 60 100

I

OUT

= 1mA to

200mA

MAX883MJA 150

Load Regulation ∆V

LDR

I

OUT

= 1mA to

150mA

MAX882, MAX884 30 100

mV

Line Regulation ∆V

LNR

10 40 mV

I

OUT

= 100mA

220

MAX883

I

OUT

= 200mA

440

I

OUT

= 100mA

320

Dropout Voltage (Note 3) ∆V

DO

MAX882/MAX884

I

OUT

= 200mA

640

mV

MAX88_C_A/E_A 11 15

SET = OUT, VIN =
6V

MAX88_MJA 30

MAX88_C_A/E_A 15 25

Quiescent Current I

Q

VIN = 11.5V

MAX88_MJA 40

µA

11.5

11.5

11.5

I

= 100µA - 250m A,

OU T

4.75 5.00 5.25

6.0V ≤ VIN ≤ 11.5V

4.3V ≤ VIN ≤ 11.5V

(V

I

= 100µA - 250m A,

OU T

I

= 100µA - 200m A,

OU T

I

= 100µA - 200m A,

OU T

OUT

= 10mA

+ 0.5V) < VIN < 11.5V, I

OUT

4.65 5.35

3.15 3.30 3.45

3.07 3.53

110

220

160

320

MAX882/MAX883/MAX884

5V/3.3V or Adjustable, Low-Dropout,

Low IQ, 200mA Linear Regulators

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VIN= 6V (MAX883) or VIN= 4.3V (MAX882/MAX884), C

OUT

= 2.2µF, STBY or OFF = VIN, SET = GND, LBI = VIN, TJ= -40°C to

+85°C, unless otherwise noted. Typical values are at T

J

= +25°C.) (Note 1)

PARAMETER

CONDITIONS

UNITS

MAX882C_A/E_A 7 15

STBY = 0, VIN =
6V, SET = OUT

MAX882MJA 30

MAX882C_A/E_A 10 25

STBY Quiescent Current (Note 4)

I

Q STBY

STBY = 0, VIN =

MAX882MJA 40

µA

MAX88_C_A

1

MAX88_E_A 5

OFF Quiescent Current I

Q OFF

OFF = 0, RL = 1kΩ,
V

IN

= 11.5V

MAX883/MAX884

MAX88_MJA 10

µA

MAX88_C_A 1

MAX88_E_A 3Minimum Load Current

)

VIN = 11.5V, SET =
OUT

MAX88_MJA 10

µA

V

OUT

< 0.8V

Foldback Current Limit (Note 5) ILIM

V

OUT

> 0.8V and VIN - V

OUT

> 0.7V

mA

Thermal Shutdown Temperature

T

SD

°C

Thermal Shutdown Hysteresis ∆T

SD

10 °C

V

OUT

= 4.5V MAX883_A 6 20

Reverse-Current-Protection
(Note 6)

∆V

RTH

V

OUT

= 3.0V

MAX882_A,
MAX884_A

620

mV

MAX882: VIN = 0, STBY = 0, V

OUT

= 3.0V 7

Reverse Leakage Current I

RVL

MAX883/MAX884: VIN = 0, OFF = 0, V

OUT

= 3.0V

µA

Startup Overshoot V

OSH

RL = 1kΩ, C

OUT

= 2.2µF

% of

V

OUT

Time Required to Exit OFF or
STBY Modes

T

START

VIN = 9V, RL = 33Ω, OFF from 0 to VIN, 0%
to 95% of V

OUT

µs

For internal feedback 65 30

Dual Mode SET Threshold

For external feedback

65

mV

0°C ≤ TJ ≤ +85°C

SET Reference Voltage V

SET

SET = OUT, RL =
1kΩ

-40°C ≤ T

J

≤ +85°C

V

SET Input Leakage Current I

SET

V

SET

= 1.5V or 0

nA

0°C ≤ TJ ≤ +85°C

LBI Threshold Voltage V

LBI

LBI signal falling

-40°C ≤ T

J

≤ +85°C

V

LBI Hysteresis ∆V

LBI

7mV

LBI Input Leakage Current I

LBI

V

LBI

= 1.5V

nA

LBO Output Low Voltage V

LBOL

I

LBO

sink = 1.2mA, V

LBI

= 1V, 3V < VIN <

11.5V, SET = OUT

90 250 mV

LBO Output Leakage Current

V

LBI

= VIN, V

LBO

= V

IN

0.1 µA

MAX88_C_A

1

MAX88_E_A 3OUT Leakage Current

VIN = 11.5V, V

OUT

= 2V, SET = OUT

MAX88_MJA 10

µA

SYMBOL

MIN TYP MAX

11.5V, SET = OUT

I

OUT(MIN

V

SET TH

I

BLO LKG

I

OUT LKG

150

1.16 1.20 1.24

1.12 1.28

1.15 1.20 1.25

1.11 1.29

0.01

170

430

+160

0.01

200

±0.01 ±50

±0.01 ±50

0.01

0.01

MAX882/MAX883/MAX884

5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 200mA Linear Regulators

4 _______________________________________________________________________________________

Note 1:Electrical specifications are measured by pulse testing and are guaranteed for a junction temperature (TJ) within the operat-

ing temperature range, unless otherwise noted. Specifications to -40°C are guaranteed by design and not production tested.

Note 2:(V

IN

- V

OUT

) is limited to keep the product (I

OUT

x (VIN- V

OUT

)) from exceeding the package power dissipation limits. See

Figure 5. Therefore, the combination of high output current and high supply voltage is not tested.

Note 3:Dropout Voltage is (V

IN

- V

OUT

) when V

OUT

falls to 100mV below its nominal value at VIN= (V

OUT

+ 2V). For example, the

MAX883 is tested by measuring the V

OUT

at VIN= 7V, then VINis lowered until V

OUT

falls 100mV below the measured value.

The difference (VIN- V

OUT

) is then measured and defined as ∆VDO.

Note 4:Since standby mode inhibits the output but keeps all biasing circuitry alive, the Standby Quiescent Current is similar to the

normal operating quiescent current.

Note 5:Foldback Current Limit was characterized by pulse testing to remain below the maximum junction temperature (not

production tested).

Note 6:The Reverse-Current Protection Threshold is the output/input differential voltage (V

OUT

- VIN) at which reverse-current

protection switchover occurs and the pass transistor is turned off. See the section Reverse-Current Protection in the Detailed

Description.

Note 7:Noise is tested using a bandpass amplifier with two poles at 10Hz and two poles at 10kHz.

ELECTRICAL CHARACTERISTICS (continued)

(VIN= 6V (MAX883) or VIN= 4.3V (MAX882/MAX884), C

OUT

= 2.2µF, STBY or OFF = VIN, SET = GND, LBI = VIN, TJ= -40°C to

+85°C, unless otherwise noted. Typical values are at T

J

= +25°C.) (Note 1)

PARAMETER

CONDITIONS

UNITS

STBY Threshold Voltage V

STBY

STBY signal falling, MAX882_A

V

STBY Hysteresis

MAX882_A 7 mV

STBY Input Leakage Current I

STBY

V

STBY

= VIN or 0, MAX882_A

nA

V

IL OFF

In off mode, MAX883_A, MAX884_A 0.4

In on mode, SET = OUT, VIN < 6V,
MAX883_A, MAX884_A

2.0

OFF Threshold Voltage

In on mode, SET = OUT, 6V < VIN < 11.5V,
MAX883_A, MAX884_A

3.0

V

OFF Input Leakage Current I

OFF

V

OFF

= VIN or 0

nA

Output Noise e

n

10Hz to 10kHz, SET = OUT, RL = 1kΩ,
C

OUT

= 2.2µF (Note 7)

µV

RMS

SYMBOL

∆V

STBY

V

IH OFF

MIN TYP MAX

1.15 1.20 1.25

±0.01 ±50

±0.01 ±50

250

MAX882/MAX883/MAX884

5V/3.3V or Adjustable, Low-Dropout,

Low IQ, 200mA Linear Regulators

_______________________________________________________________________________________ 5

Typical Operating Characteristics

(VIN= 7V for MAX883, VIN = 5.3V for MAX882/MAX884, OFF or STBY = VIN, SET = GND, LBI = VIN, LBO = OPEN, CIN= C

OUT

= 2.2µF,

R

L

= 1kΩ, TA = +25°C, unless otherwise noted.)

95

101

100

99

98

97

96

0.01 0.1 1 10010 250

OUTPUT VOLTAGE AND QUIESCENT

CURRENT vs. LOAD CURRENT

MAX882/4-01

LOAD CURRENT (mA)

NORMALIZED OUTPUT VOLTAGE (%)

V

OUT

= 5V (MAX883)

V

OUT

= 3.3V (MAX882/MAX884)

OUTPUT VOLTAGE
NORMALIZED TO OUTPUT
VOLTAGE AT 1mA

0

5

10

15

20

25

30

QUIESCENT CURRENT (µA)

I

Q

0

2

3

4

5

6

4

6

8

10

12

14

16

OUTPUT VOLTAGE AND QUIESCENT

CURRENT vs. SUPPLY VOLTAGE

MAX882/4-03

SUPPLY VOLTAGE (V)

OUTPUT VOLTAGE (V)

QUIESCENT CURRENT (µA)

2 3 4 5 6 7 8 9 10 11 12

V

OUT

= 5V (MAX883)

V

OUT

= 3.3V (MAX882/MAX884)

IQ (MAX882/MAX884)

IQ (MAX883)

1

0

0.1

0.2

0.3

0.4

0.5

0.6

DROPOUT VOLTAGE

vs. LOAD CURRENT

MAX882/4-05

LOAD CURRENT (mA)

DROPOUT VOLTAGE (V)

0 50 100 150 200 250 300

V

OUT

= 3.3V (MAX882/MAX884)

V

OUT

= 5V (MAX883)

0

15

12

9

6

3

QUIESCENT CURRENT

vs. TEMPERATURE

MAX882/4-04

TEMPERATURE (°C)

QUIESCENT CURRENT (µA)

-55 -35 -15 5 25 45 65 85 105 125

10Hz to 10kHz OUTPUT NOISE

10ms/div

OUTPUT NOISE (1mV/div)

MAX883
V

OUT

= 5V

MAX882/4-06

96

97

98

99

100

101

102

103

104

OUTPUT VOLTAGE

vs. TEMPERATURE

MAX882/4-04a

TEMPERATURE (°C)

NORMALIZED OUTPUT VOLTAGE (%)

-55 -35 -15 5 25 45 65 85 105 125