19-3190; Rev 2; 8/09
KIT
ATION
EVALU
BLE
AVAILA
1.425V to 3.6V Input, 2A,
0.2V Dropout LDO Regulators
The MAX8526/MAX8527/MAX8528 low-dropout linear
regulators operate from input voltages as low as 1.425V
and are able to deliver up to 2A of continuous output
current with a maximum dropout voltage of only 200mV.
The output voltage can be set from 0.5V to (VIN - 0.2V)
and is 1.4% accurate over load and line variations, from
0°C to +85°C.
These regulators use small, 2.2µF ceramic input capacitors and 10µF ceramic output capacitors to deliver 2A
output current. High bandwidth provides excellent transient response and limits the output voltage deviation to
45mV for a 20mA to 2A load step, with only a 10µF
ceramic output capacitor, and the voltage deviations can
be reduced further by increasing the output capacitor.
Designed with an internal p-channel MOSFET pass
transistor, the MAX8526/MAX8527/MAX8528 feature
low 500µA typical supply current during dropout conditions. Soft-start reduces inrush current. Other features
include a logic-controlled shutdown mode, short-circuit
protection, and thermal-overload protection.
The MAX8527 features a power-OK (POK) output that
transitions high when the regulator output is within
±10% of its nominal output voltage. The MAX8528 features a 150ms power-on reset (POR) output.
The parts are packaged in a 14-pin TSSOP package,
which includes an exposed pad for optimal power
dissipation.
Features
o 1.425V to 3.6V Input Voltage Range
o Guaranteed 200mV Dropout at 2A Output Current
o ±0.6% Initial Accuracy
o ±1.4% Output Accuracy over
Load/Line/Temperature (0°C to +85°C)
o Compatible with Ceramic Capacitors
o Fast Transient Response
o 440µA Operating Supply Current
o <50µA Shutdown Supply Current
o Short-Circuit Protection
o Thermal-Overload Protection
o Soft-Start Limits Inrush Current
o 5mm x 6.4mm Footprint, 1.1mm Profile
Ordering Information
TEMP RANGE
PIN-PACKAGE
MAX8526EUD
PART
-40°C to +85°C
14 TSSOP
MAX8526EUD+
-40°C to +85°C
14 TSSOP
MAX8527EUD
-40°C to +85°C
14 TSSOP
Servers
Networking
-40°C to +85°C
14 TSSOP
MAX8527EUD/V+
-40°C to +85°C
14 TSSOP
MAX8528EUD
-40°C to +85°C
14 TSSOP
MAX8528EUD+
Applications
MAX8527EUD+
-40°C to +85°C
14 TSSOP
+Denotes a lead(Pb)-free RoHS-compliant package.
/V Denotes an automotive qualified part.
Storage
Typical Operating Circuit
Base Stations
Optical Modules
Post Regulators
INPUT
1.425V TO 3.6V
Notebooks
2.2µF
IN_
OUT_
MAX8526
MAX8527
MAX8528
PDAs
ATE
OUTPUT
0.5V TO (VIN - 0.2V), 2A
10µF
POWER-ON RESET
POR (MAX8528)
POWER-OK
FB
POK (MAX8527)
ON
Pin Configurations appear at end of data sheet.
EN
GND
OFF
________________________________________________________________ Maxim Integrated Products
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.
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MAX8526/MAX8527/MAX8528
General Description
