Datasheet

Maxim Integrated │ 8
www.maximintegrated.com
MAX17501 60V, 500mA, Ultra-Small, High-Efciency,
Synchronous Step-Down DC-DC Converter
Typical Operating Characteristics (continued)
(V
IN
= 24V, V
GND
= V
PGND
= 0V, C
VIN
= C
VCC
=1μF,V
EN
= 1.5V, C
SS
= 3300pF, V
FB
= 0.98 x V
OUT
, LX = unconnected, RESET =
unconnected, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
=+25°C.AllvoltagesarereferencedtoGND,
unless otherwise noted.)
FULL-LOAD SOFT-START FROM V
IN
(MAX17501F)
MAX17501 toc25
400µs/div
V
IN
20V/div
V
OUT
2V/div
I
OUT
200mA/div
RESET
5V/div
SOFT-START WITH 2V PREBIAS
(MAX17501A)
MAX17501 toc26
400µs/div
EN/UVLO
2V/div
V
OUT
1V/div
RESET
2V/div
SOFT-START WITH 2.5V PREBIAS
(MAX17501B)
MAX17501 toc27
400µs/div
EN/UVLO
2V/div
V
OUT
1V/div
RESET
5V/div
SOFT-START WITH 2V PREBIAS
(MAX17501E)
MAX17501 toc28
400µs/div
EN/UVLO
2V/div
V
OUT
1V/div
RESET
2V/div
SOFT-START WITH 2.5V PREBIAS
(MAX17501F)
MAX17501 toc29
400µs/div
EN/UVLO
2V/div
V
OUT
1V/div
RESET
5V/div
LOAD TRANSIENT RESPONSE OF MAX17501A
(LOAD CURRENT STEPPED FROM 5mA TO 255mA)
MAX17501 toc30
200µs/div
V
OUT
(AC)
100mV/div
I
OUT
100mA/div