Datasheet

MAX8510/MAX8511/MAX8512
Ultra-Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulators
8 _______________________________________________________________________________________
P
OUT
FB***
*MAX8510 ONLY
**MAX8510/MAX8511 ONLY
***MAX8512 ONLY
**
**
BP*
MAX8510
MAX8511
MAX8512
ERROR
AMP
IN
SHDN
GND
SHUTDOWN AND
POWER-ON CONTROL
THERMAL
SENSOR
MOS DRIVER
WITH I
LIMIT
1.225V REFERENCE
AND NOISE BYPASS
Functional Diagram
Dropout Voltage
A regulator’s minimum dropout voltage determines the
lowest usable supply voltage. In battery-powered sys-
tems, this determines the useful end-of-life battery volt-
age. Because the MAX8510/MAX8511/MAX8512 use a
P-channel MOSFET pass transistor, their dropout volt-
age is a function of drain-to-source on-resistance
(RDS(ON)) multiplied by the load current (see the
Typical Operating Characteristics ).