MAX8869
1A, Microcap, Low-Dropout,
Linear Regulator
General Description
Features
The MAX8869 low-dropout linear regulator operates
from a +2.7V to +5.5V input and delivers a guaranteed
1A load current with a low 200mV dropout. The high-
accuracy ( 1ꢀ% output voltage is preset at +5Vꢁ +ꢂ.ꢂVꢁ
+2.5Vꢁ +1.8Vꢁ or +1.0V or is adjustable from +0.8V to
+5V with an external resistor-divider.
o Guaranteed 1A Output Current
o Stable with C = 1µF
o Low 200mV Dropout at 1A
OUT
o
1ꢀ Output Voltage Accuracy
Preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V
and Adjustable from +0.8V to +5.0V
The MAX8869 uses Microcap® technology and
requires only a small 1µF output capacitor for guaran-
teed stability. An internal PMOS pass transistor allows
low 500µA supply currentꢁ making this regulator useful
for networking and telecom hardware as well as bat-
tery-operated equipment. Other features include soft-
startꢁ low-power shutdownꢁ short-circuit protectionꢁ and
thermal shutdown protection.
o 54dB PSRR at 100kHz
o Adjustable Soft-Start
o 3ms Reset Output
o Foldback Output Current Limit
o Thermal Overload Protection
o High-Power 16-Pin TSSOP Package (1.5W)
The MAX8869 is available in a 1.5Wꢁ 16-pin TSSOP
packageꢁ which is ꢂ0ꢀ smaller than a SOT22ꢂ and only
1.1mm high.
30ꢀ Smaller than SOT223 (Only 1.1mm High)
Ordering Information
PART
PIN-PACKAGE
16 TSSOP-EP**
16 TSSOP-EP**
16 TSSOP-EP**
V
(V)*
OUT
MAX8869EUE50+
MAX8869EUEꢂꢂ+
MAX8869EUE25+
+5.0
________________________Applications
+ꢂ.ꢂ
+2.5
+2.5
+1.8
+1.0
Telecom Hardware
Network Equipment
MAX8869EUE25/V+ 16 TSSOP-EP**
Mobile Phone Base Stations
Personal Computers
Notebook Computers
MAX8869EUE18+
MAX8869EUE10+
16 TSSOP-EP**
16 TSSOP-EP**
Note: All devices are specified over the -40°C to +85°C
temperature range.
+Denotes a lead(Pb%-free/RoHS-compliant package.
*Or adjustable from +0.8V to +5.0V. Contact factory for other
preset output voltages.
**EP = Exposed pad.
/V denotes an automotive qualified part.
Microcap is a registered trademark of American Technical
Ceramics Corp.
Pin Configuration
Typical Operating Circuit
TOP VIEW
+
N.C.
IN
1
2
3
4
5
6
7
8
16 N.C.
15 OUT
14 OUT
13 OUT
12 OUT
11 SET
10 GND
MAX8869
IN
IN
IN
IN
OUT
OUT
OUT
OUT
RST
V
V
IN
OUT
+2.7V TO +5.5V
IN
UP TO 1A
MAX8869
IN
1µF
1µF
IN
ON
RESET
OUTPUT
SHDN
SS
OFF
RST
SHDN
SS
SET
GND
9
N.C.
TSSOP-EP
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-1692; Rev 2; 10/12