Datasheet

Maxim Integrated | 7www.maximintegrated.com
MAX16952
36V, 2.2MHz Step-Down Controller
with Low Operating Current
OUTPUT RESPONSE TO SLOW
RAMP AT SUP (PWM MODE)
MAX16952 toc14
10V/div
0V
0V
0V
0V
5V/div
5V/div
10V/div
V
SUP
V
OUT
V
LX
V
PGOOD
4s/div
2.2MHz/5V
I
LOAD
= 4A
OUTPUT RESPONSE TO SLOW
RAMP AT SUP (SKIP MODE)
MAX16952 toc15
0V
0V
0V
0V
10V/div
5V/div
10V/div
5V/div
V
SUP
2.2MHz/5V
I
LOAD
= 0A
V
OUT
V
LX
V
PGOOD
4s/div
SHORT-CIRCUIT TEST (SKIP MODE)
MAX16952 toc16
0V
0A
0V
2V/div
5A/div
5V/div
V
OUT
2.2MHz/5V
I
LX
V
PGOOD
100µs/div
SHORT-CIRCUIT TEST (SKIP MODE)
MAX16952 toc17
0V
0A
0V
2V/div
5A/div
5V/div
V
OUT
2.2MHz/3.3V
I
LX
V
PGOOD
100µs/div
LOAD REGULATION (PWM MODE)
MAX16952 toc18
I
LOAD
(A)
V
OUT
(V)
3.53.02.52.01.51.00.5
4.7
4.8
4.9
5.0
5.1
5.2
4.6
04.0
2.2MHz/5V
PWM MODE
-40°C
+125°C
+25°C
LOAD REGULATION (SKIP MODE)
MAX16952 toc19
I
LOAD
(A)
V
OUT
(V)
3.53.02.52.01.51.00.5
4.7
4.8
4.9
5.0
5.1
5.2
4.6
0 4.0
2.2MHz/5V
+25°C
+125°C
-40°C
V
OUT
vs. TEMPERATURE
MAX16952 toc20
TEMPERATURE (°C)
V
OUT
(V)
1109565 80-10 5 20 35 50-25
4.6
4.7
4.8
4.9
5.0
5.1
5.2
5.3
5.4
5.5
4.5
-40 125
2.2MHz/5V
SKIP MODE/0A LOAD
PWM MODE/4A LOAD
Typical Operating Characteristics (continued)
(V
SUP
= V
EN
= 14V, C
IN
= 47μF, C
OUT
= 94μF, C
BIAS
= 2.2μF, C
BST
= 0.1μF, R
FOSC
= 13kΩ, V
FB
= V
BIAS
, R
BST
= 75Ω, T
A
= +25°C,
unless otherwise noted.)