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MAX8867EUK29

Description
Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23
File Size550KB,11 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet View All

MAX8867EUK29 Overview

Low-Noise, Low-Dropout, 150mA Linear Regulators in SOT23

19-1302; Rev 3; 7/02
Low-Noise, Low-Dropout,
150mA Linear Regulators in SOT23
_______________General Description
The MAX8867/MAX8868 low-noise, low-dropout linear
regulators operate from a 2.5V to 6.5V input and deliver
up to 150mA. Typical output noise for these devices is
just 30µV
RMS
, and typical dropout is only 165mV at
150mA. The output voltage is preset to voltages in the
range of 2.5V to 5.0V, in 100mV increments. The
MAX8867 and MAX8868 are pin-compatible with the
MAX8863 and MAX8864, except for the BP pin.
Designed with an internal P-channel MOSFET pass tran-
sistor, the MAX8867/MAX8868 maintain a low 100µA
supply current, independent of the load current and
dropout voltage. Other features include a 10nA logic-
controlled shutdown mode, short-circuit and thermal-
shutdown protection, and reverse battery protection.
The MAX8868 also includes an auto-discharge function,
which actively discharges the output voltage to ground
when the device is placed in shutdown. Both devices
come in regular and thin 5-pin SOT23 packages.
____________________________Features
o
Low Output Noise: 30µV
RMS
o
Low 55mV Dropout at 50mA Output
(165mV at 150mA output)
o
Low 85µA No-Load Supply Current
o
Low 100µA Operating Supply Current
(Even In Dropout)
o
Thermal-Overload and Short-Circuit Protection
o
Reverse Battery Protection
o
Output Current Limit
o
Preset Output Voltages (±1.4% Accuracy)
o
10nA Logic-Controlled Shutdown
MAX8867/MAX8868
________________________Applications
Cellular Telephones
Cordless Telephones
PCS Telephones
PCMCIA Cards
Modems
Hand-Held Instruments
Palmtop Computers
Electronic Planners
_________________Ordering Information
PART**
MAX8867EUKxy-T
MAX8867EZKxy-T
MAX8867C/Dxy
MAX8868EUKxy-T
MAX8868EZKxy-T
MAX8868C/Dxy
TEMP
RANGE
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
PIN-PACKAGE
SOT23-5 Regular
SOT23-5 Thin
Dice*
SOT23-5 Regular
SOT23-5 Thin
Dice*
*Dice
are tested at T
A
= +25°C only.
**xy
is the output voltage code (see Expanded Ordering
Information table at end of data sheet).
__________Typical Operating Circuit
INPUT
2.5V TO 6.5V
IN
C
IN
1µF
ON
OFF
C
BP
0.01µF
OUT
C
OUT
1µF
OUTPUT
PRESET
2.5V TO 5.0V
150mA
__________________Pin Configuration
TOP VIEW
SHDN
1
5
BP
MAX8867
MAX8868
SHDN
BP
GND
GND
2
MAX8867
MAX8868
4
OUT
IN
3
SOT23-5
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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