MAX1983EUT+T Maxim Integrated Products, MAX1983EUT+T Datasheet

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MAX1983EUT+T

Manufacturer Part Number
MAX1983EUT+T
Description
IC REG LDO ADJ 0.3A SOT23-6
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1983EUT+T

Regulator Topology
Positive Adjustable
Voltage - Output
0.8 ~ 2 V
Voltage - Input
1.25 ~ 5.5 V
Number Of Regulators
1
Current - Output
300mA
Current - Limit (min)
330mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-6
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
5.5 V
Output Voltage
0.8 V to 2 V
Output Type
Adjustable
Dropout Voltage (max)
0.35 V at 300 mA
Output Current
300 mA
Line Regulation
0.15 % / V
Voltage Regulation Accuracy
1 %
Maximum Power Dissipation
0.696 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Dropout (typical)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
MAX1983EUT+T
MAX1983EUT+TTR
The MAX1982/MAX1983 are low-voltage, low-dropout
linear regulators with an external bias supply input. The
5V bias supply drives the gate of the internal N-channel
pass transistor, making these devices ideal for applica-
tions that require low-voltage outputs from low-voltage
inputs. The MAX1982 delivers 1.2V (±3%) at 300mA
from an input voltage of 1.25V to 5.5V. The MAX1983
delivers an adjustable output voltage from 0.8V to 2V.
The MAX1982/MAX1983 include a current-limit and
thermal shutdown that protects the regulator in the
event of a fault condition. Both devices are offered in a
6-pin SOT23 package and are specified over the
extended (-40°C to +85°C) temperature range.
19-2560; Rev 1; 10/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
OFF
ON
4.5V TO 5.5V
Notebook Computers
VID Power Supplies
PDAs
Cell Phones
Low-Dropout Regulators with External Bias
Supply
Low-Voltage, Low-Dropout Linear Regulators
Typical Operating Circuit
0.1μF
________________________________________________________________ Maxim Integrated Products
BIAS
GND
SHDN
General Description
MAX1982
Applications
PGOOD
OUT
IN
1.25V TO 5.5V
100kΩ
10μF
10μF
PGOOD
1.2V
with External Bias Supply
o Low-Cost 1.2V, 300mA VID Supply
o ±3% Output Voltage Accuracy
o No Minimum Load Current Required
o 1.25V to 5.5V Input Supply Voltage
o 5V Input Bias Supply Voltage
o Power-Good (PGOOD) Open-Drain Output with
o Adjustable Output Voltage (MAX1983)
o Low Supply Current (I
o 5µA (max) Shutdown Supply Current
o Tiny 6-Pin SOT23 Package
+ Denotes lead(Pb)-free package/RoHS-compliant package.
MAX1982EUT+T -40°C to +85°C
MAX1983EUT+T -40°C to +85°C
MAX1982EUT-T
MAX1983EUT-T
1ms Rising Edge Propagation Delay (MAX1982)
PART
TOP VIEW
SHDN
SHDN
BIAS
GND
BIAS
GND
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Fixed Output Voltage
Adjustable Output
1
2
3
1
2
3
Ordering Information
MAX1982
MAX1983
SOT23
SOT23
Pin Configurations
BIAS
+ I
IN
PIN-
PACKAGE
6 SOT23-6
6 SOT23-6
6 SOT23-6
6 SOT23-6
6
5
4
4
6
5
= 165µA typ)
IN
OUT
PGOOD
IN
OUT
ADJ
Features
ABEA+
ABEB+
MARK
ABEA
ABEB
TOP
1

Related parts for MAX1983EUT+T

MAX1983EUT+T Summary of contents

Page 1

... Adjustable Output Voltage (MAX1983) o Low Supply Current (I o 5µA (max) Shutdown Supply Current o Tiny 6-Pin SOT23 Package PART MAX1982EUT-T MAX1983EUT-T MAX1982EUT+T -40°C to +85°C MAX1983EUT+T -40°C to +85°C + Denotes lead(Pb)-free package/RoHS-compliant package. 1.25V TO 5.5V IN 10μF 1.2V OUT 10μF PGOOD PGOOD 100kΩ ...

Page 2

Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply ABSOLUTE MAXIMUM RATINGS ADJ, IN, BIAS, PGOOD, SHDN, OUT to GND..........-0.3V to +6V Output Short-Circuit Duration ............................................Infinite Continuous Power Dissipation (T = +70° 6-Pin SOT23 (derate 8.7mW/ C above +70°C)............696mW ...

Page 3

Low-Voltage, Low-Dropout Linear Regulators ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1.8V LOAD T = +25°C.) (Note 1) A PARAMETER SYM LOGIC AND I/O SHDN Input High Voltage SHDN Input Low Voltage SHDN ...

Page 4

Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1.8V 1.2V OUT PARAMETER SYM MAX1983 0.80V Output Voltage Accuracy Dropout Voltage Current Limit PGOOD COMPARATOR ...

Page 5

Low-Voltage, Low-Dropout Linear Regulators (Circuit of Figure +25°C, unless otherwise noted.) A INPUT CURRENT vs. TEMPERATURE 28 BIAS 27.5 27.0 26.5 26.0 25.5 25.0 -40 - TEMPERATURE (°C) OUTPUT VOLTAGE ...

Page 6

Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply (Circuit of Figure +25°C, unless otherwise noted.) A POWER-SUPPLY REJECTION RATIO (V vs. FREQUENCY BIAS - 0.6V P -20 LOAD ...

Page 7

Low-Voltage, Low-Dropout Linear Regulators (Circuit of Figure +25°C, unless otherwise noted.) A UNDERVOLTAGE LOCKOUT 2V/ div 500mV/ div I = 300mA LOAD 100μs/div _______________________________________________________________________________________ with External Bias Supply Typical Operating Characteristics (continued) MAX1982/83 toc18 5V V BIAS ...

Page 8

Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply PIN NAME MAX1982 MAX1983 Bias Voltage. Input voltage to the control circuitry. BIAS powers all control blocks and the gate 1 1 BIAS of the pass transistor. Bypass BIAS to GND with ...

Page 9

Low-Voltage, Low-Dropout Linear Regulators MAX1982 BIAS SHDN UVLO SHUTDOWN OVERTEMP BIAS 0.8V REFERENCE Figure 1. MAX1982 Functional Diagram MAX1983 BIAS SHDN UVLO SHUTDOWN OVERTEMP BIAS 0.8V REFERENCE Figure 2. MAX1983 Functional Diagram _______________________________________________________________________________________ with External Bias Supply CURRENT SENSE G ...

Page 10

Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply The MAX1982/MAX1983 limit the output current to 600mA (typ) in the event of an overload or output short circuit. The current limit prevents damage to the inter- nal power transistor, but the ...

Page 11

Low-Voltage, Low-Dropout Linear Regulators 350 MAXIMUM CONTINUOUS CURRENT 300 250 T = +25° +50°C A 200 T = +70°C A 150 100 +150° INPUT-OUTPUT DIFFERENTIAL VOLTAGE (V) Figure ...

Page 12

Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply Chip Information TRANSISTOR COUNT: 430 PROCESS: BiCMOS 12 ______________________________________________________________________________________ Package Information For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE PACKAGE CODE 6SOT23 U16-1 DOCUMENT NO. 21-0058 ...

Page 13

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2008 Maxim Integrated Products ...

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