19-2733; Rev 0; 1/03
Low-Noise, Low-Dropout,
200mA Linear Regulator in UCSP
General Description
Features
The MAX8532 offers the benefits of low-dropout voltage
and ultra-low power regulation in a subminiaturized
UCSP, making it ideal for space-restricted portable
equipment. The device operates from a 2.5V to 6.5V
input and delivers up to 200mA, with low dropout of
100mV (typ) at 100mA. Designed with an internal
P-channel MOSFET pass transistor, the supply current
is kept at a low 80µA, independent of the load current
and dropout voltage. Other features include short-circuit
protection and thermal-shutdown protection.
ꢀ Guaranteed 200mA Output Current
ꢀ Low 100mV (typ) Dropout at 100mA
ꢀ Low 40µV
Output Noise
RMS
ꢀ Low 80µA Operating Supply Current
ꢀ 62dB PSRR
ꢀ <1µA Shutdown Current
ꢀ Thermal-Overload and Short-Circuit Protection
ꢀ Output Current Limit
The MAX8532 includes a reference bypass pin for low
ꢀ Tiny 1.16mm x 1.57mm x 0.66mm UCSP
output noise (40µV
) and a logic-controlled shutdown
RMS
(3 x 2 Grid)
input. The device is available in a tiny 6-pin UCSP.
Applications
Ordering Information
Cellular and Cordless Phones
PDAs and Palmtop Computers
Notebook Computers
Digital Cameras
OUT
VOLTAGE
PIN-
PACKAGE
PART
TEMP RANGE
MAX8532EBT_* -40 C to +85 C 1.5V to 3.3V 6 UCSP
*“_” = Output voltage code (see the Output Voltage Selector
Guide).
PCMCIA Cards
Wireless LAN Cards
Output Voltage Selector Guide
Hand-Held Instruments
PART
V
(V)
TOP MARK
ACP
OUT
MAX8532EBTJ
MAX8532EBTG
2.85
3
ACU
Note: Contact the factory for other output voltages between
1.5V and 3.3V. The minimum order quantity is 25,000 units.
Pin Configuration
Typical Operating Circuit
TOP VIEW
OUTPUT
1.5V TO 3.3V
AT 200mA
GND
A1
SHDN
A2
BP
A3
INPUT
2.5V TO 6.5V
IN
OUT
C
2.2 F
IN
2.2 F
MAX8532EBT
MAX8532
B1
B2
B3
ON
SHDN
BP
OUT
IN
N.C.
OFF
10nF
UCSP
GND
________________________________________________________________ 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.