LTM4636
6
4636f
Typical perForMance characTerisTics
2.5V Transient Response
1.5V Transient Response
3.3V Transient Response
40A Load Short-Circuit
1.8V Transient Response
Start-Up with Soft-Start No-Load
Start-Up with 0.5V Output Pre-Bias
Start-Up with Soft-Start Full Load
No-Load Short-Circuit
RUN PIN CAPACITOR = 0.1µF
TRACK/SS CAPACITOR = 0.1µF
C
OUT
= 4 × 100µF CERAMIC AND 3 × 470µF
POSCAP
20ms/DIV
V
IN
5V/DIV
V
OUT
0.5V/DIV
4636 G11
RUN PIN CAPACITOR = 0.1µF
TRACK/SS CAPACITOR = 0.1µF
C
OUT
= 4 × 100µF CERAMIC AND 3 × 470µF
POSCAP
20ms/DIV
V
IN
5V/DIV
V
OUT
0.5V/DIV
4636 G12
100µs/DIV
L
IN
200mA/DIV
V
OUT
0.5V/DIV
4636 G13
RUN PIN CAPACITOR = 0.1µF
TRACK/SS CAPACITOR = 0.1µF
C
OUT
= 4 × 100µF CERAMIC AND 3 × 470µF
20ms/DIV
V
IN
5V/DIV
V
OUT
0.5V/DIV
4636 G14
100µs/DIV
L
IN
200mA/DIV
V
OUT
0.5V/DIV
4636 G15
12V TO 1.5V TRANSIENT RESPONSE
C
OUT
= 4 × 100µF CERAMIC, 3 × 470µF 2.5V
POSCAP 5mΩ
C
FF
= 22pF, SW FREQ = 425kHz
C
COMP
= 100pF
10A/DIV
18A/µs
STEP
50mV/DIV
50µs/DIV
4636 G07
12V TO 1.8V TRANSIENT RESPONSE
C
OUT
= 6 × 100µF CERAMIC, 2 × 470µF 4V
POSCAP 5mΩ
C
FF
= 22pF, SW FREQ = 500kHz
C
COMP
= 100pF
10A/DIV
18A/µs
STEP
50mV/DIV
100µs/DIV
4636 G08
12V TO 2.5V TRANSIENT RESPONSE
C
OUT
= 6 × 100µF CERAMIC, 2 × 470µF 4V
POSCAP 5mΩ
C
FF
= 22pF, SW FREQ = 650kHz
C
COMP
= 100pF
10A/DIV
18A/µs
STEP
100mV/DIV
100µs/DIV
4636 G09
12V TO 3.3V TRANSIENT RESPONSE
C
OUT
= 6 × 100µF CERAMIC, 2 × 470µF 4V
POSCAP 5mΩ
C
FF
= 22pF, SW FREQ = 750kHz
C
COMP
= 100pF
10A/DIV
18A/µs
STEP
100mV/DIV
100µs/DIV
4636 G10
