Datasheet

Maxim Integrated │ 7
www.maximintegrated.com
MAX17502 60V, 1A, 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
=2.2μF,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 refer-
encedtoGND,unlessotherwisenoted.)
SOFT-START WITH 2V PREBIAS
(MAX17502E)
MAX17502 toc17
400µs/div
EN/UVLO
2V/div
V
OUT
1V/div
RESET
2V/div
SOFT-START WITH 2.5V PREBIAS
(MAX17502F)
MAX17502 toc18
400µs/div
EN/UVLO
2V/div
V
OUT
1V/div
RESET
5V/div
LOAD TRANSIENT RESPONSE OF MAX17502E
(LOAD CURRENT STEPPED FROM NO-LOAD TO 500mA)
MAX17502 toc19
40µs/div
V
OUT
(AC)
50mV/div
I
OUT
200mA/div
LOAD TRANSIENT RESPONSE OF MAX17502F
(LOAD CURRENT STEPPED FROM NO-LOAD TO 500mA)
MAX17502 toc20
20µs/div
V
OUT
100mV/div
I
OUT
200mA/div
LOAD TRANSIENT RESPONSE OF MAX17502E
(LOAD CURRENT STEPPED FROM 500mA TO 1A)
MAX17502 toc21
20µs/div
V
OUT
(AC)
50mV/div
I
OUT
500mA/div
LOAD TRANSIENT RESPONSE OF MAX17502F
(LOAD CURRENT STEPPED FROM 500mA TO 1A)
MAX17502 toc22
20µs/div
V
OUT
100mV/div
I
OUT
500mA/div