LTM4637 Datasheet, PDF (6/28 Pages) Linear Technology – 20A DC/DC μModule Step-Down Regulator

LTM4637
TYPICAL PERFORMANCE CHARACTERISTICS
2.5V Transient Response
OUTPUT
TRANSIENT
50mV/DIV
200µs/DIV
3.3V Transient Response
OUTPUT
TRANSIENT
50mV/DIV
200µs/DIV
5V Transient Response
OUTPUT
TRANSIENT
100mV/DIV
200µs/DIV
LOAD STEP
5A/DIV
LOAD STEP
5A/DIV
LOAD STEP
5A/DIV
V_IN = 12V
200µs/DIV
V_OUT = 2.5V
I_OUT = 0A TO 10A, C_FF = 330pF
OUTPUT CAPACITORS:
3 × 470µF POSCAP CAPACITORS
2 × 100µF CERAMIC CAPACITORS
4637 G10
V_IN = 12V
200µs/DIV
V_OUT = 3.3V
I_OUT = 0A TO 10A, C_FF = 330pF
OUTPUT CAPACITORS:
3 × 470µF POSCAP CAPACITORS
2 × 100µF CERAMIC CAPACITORS
4637 G11
V_IN = 12V
200µs/DIV
V_OUT = 5V
I_OUT = 0A TO 10A, C_FF = 330pF
OUTPUT CAPACITORS:
3 × 470µF POSCAP CAPACITORS
2 × 100µF CERAMIC CAPACITORS
4637 G12
Turn-On No Load
V_IN
2V/DIV
20ms/DIV
Turn-On 20A Load
V_IN
2V/DIV
20ms/DIV
V_OUT
200mV/DIV
20ms/DIV
20ms/DIV
12V to 1.5V AT 0A LOAD
TRACK/SS = 0.1µF
4637 G13
V_OUT
200mV/DIV
20ms/DIV
20ms/DIV
12V to 1.5V AT 20A LOAD
TRACK/SS = 0.1µF
4637 G14
Short-Circuit Protection No Load
V_OUT
500mV/DIV
200µs/DIV
INPUT
CURRENT
200mA/DIV
200µs/DIV
12V to 1.5V AT 0A LOAD
TRACK/SS = 0.1µF
4637 G15
Short-Circuit Protection with 20A
Load
V_OUT
500mV/DIV
200µs/DIV
INPUT
CURRENT
1A/DIV
200µs/DIV
12V to 1.5V AT 20A LOAD
TRACK/SS = 0.1µF
4637 G16
4637f
6
For more information www.linear.com/LTM4637