MAX8516/MAX8517/MAX8518
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
6 _______________________________________________________________________________________
Pin Description
PIN
MAX8516 MAX8517 MAX8518
NAME FUNCTION
111EN
Enable Input. Set low to place the device in low-current shutdown mode. Set
high for normal operation.
2, 3 2, 3 2, 3 IN
Regulator Input. V
IN
can range from +1.425V to +3.6V. Bypass with a 1µF or
higher ceramic capacitor to GND.
4, 5, 10 5, 10 4, 10 N.C.
No Connection. Pin 10 is internally pulled down to GND with a 10kΩ resistor.
Leave unconnected.
6 6 6 GND Ground
7 7 7 FB Feedback Pin. Connect to output through a voltage-divider to set the output.
8, 9 8, 9 8, 9 OUT
Regulator Output. Bypass with a 4.7µF ceramic capacitor to GND (a smaller
capacitor can be used if maximum load is less than 1A, i.e., C
OUT
= I
OUT
(max) x (1µF/200mA).
—4—POK
Power-OK Output (MAX8517 Only). Open-drain output. Connect to a positive
supply with a pullup resistor. If not used, leave pin unconnected. See the
Detailed Description.
—— 5POR
Power-On Reset Output. Open-drain output. Connect to a positive supply with
a pullup resistor. If not used, leave pin unconnected (see the Detailed
Description for more details).
———EP
Exposed Pad on the Underside of the Package. Solder to the ground plane for
proper heat dissipation.
MAX8516
MAX8517
MAX8518
POK
(MAX8517 ONLY)
POR
(MAX8518 ONLY)
GND
REF
OVERTHERMAL
PROTECTION
OVERTHERMAL
PROTECTION
EN
IN
UNDERVOLTAGE
LOCKOUT
THRESHOLD
0.55V
0.45V
0.50V
ERROR AMP
WITH
SOFT-START
MOS DRIVER
WITH I
LIMIT
OUT
FB
