MAX8860 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX8860 Datasheet PDF : 8 Pages
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19-1422; Rev 2; 1/01
Low-Dropout, 300mA
Linear Regulator in µMAX
General Description
The MAX8860 low-noise, low-dropout linear regulator
operates from a 2.5V to 6.5V input and is guaranteed to
deliver 300mA. Typical output noise for this device is
60µVRMS, and typical dropout is 105mV at 200mA. In
addition to the six available preset output voltages
(1.8V, 2.5V, 2.77V, 2.82V, 3V, and 3.3V), the Dual
Mode™ feature allows the device to be configured as
an adjustable output regulator from 1.25V to 6.5V.
Designed with an internal P-channel MOSFET pass tran-
sistor, the MAX8860 has a low 120µA supply current. An
output fault-detection circuit indicates loss of regulation.
Other features include a 10nA, logic-controlled shut-
down mode, short-circuit and thermal-shutdown protec-
tion, and reverse battery protection. The MAX8860 is
available in a miniature 8-pin µMAX package.
Wireless Handsets
DSP Core Power
PCMCIA Cards
Hand-Held Instruments
Palmtop Computers
Electronic Planners
Applications
Typical Operating Circuit
Features
o High Output Current (300mA)
o Low Output Voltage Noise: 60µVRMS
o Low 105mV Dropout at 200mA Output
o Low 120µA No-Load Supply Current
o Thermal Overload and Short-Circuit Protection
o Reverse Battery Protection
o 10nA Logic-Controlled Shutdown
o FAULT Indicator
o Small, Space-Saving µMAX Package
(1.1mm max height)
o Small 2.2µF Output Capacitor
Saves Space and Cost
Ordering Information
PART
MAX8860EUA18
MAX8860EUA25
MAX8860EUA27
MAX8860EUA28
MAX8860EUA30
MAX8860EUA33
TEMP RANGE
PIN-
PACKAGE
-40°C to +85°C 8 µMAX
-40°C to +85°C 8 µMAX
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
8 µMAX
8 µMAX
8 µMAX
8 µMAX
VOUT
(V)
+1.80
+2.50
+2.77
+2.82
+3.00
+3.30
INPUT
+2.5V TO
+6.5V
C1
2.2µF
IN
OUT
MAX8860
SHDN
OUT
SET
FAULT
GND
CC
R1
100kΩ
OUTPUT
UP TO
300mA
C2
2.2µF
FAULT-
DETECT
OUTPUT
C3
33nF
Pin Configuration
TOP VIEW
OUT 1
IN 2
GND 3
OUT 4
MAX8860
µMAX
8 FAULT
7 SHDN
6 CC
5 SET
Dual Mode is a trademark of Maxim Integrated Products.
________________________________________________________________ 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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