OKDH-T40-W12-001-C Datasheet, PDF (15/38 Pages) Murata Manufacturing Co., Ltd. – 40A Digital PoL DC-DC Converter Series

OKDx-T/40-W12-xxx-C
40A Digital PoL DC-DC Converter Series
Typical Characteristics
Load Transient
Load Transient vs. External Capacitance, VO = 1.0 V
Load Transient vs. External Capacitance, VO = 3.3 V
[mV]
200
160
120
80
40
0
0
1
2
3
4
5 [mF]
Default
PID/NLR
Opt. PID,
No NLR
Default PID,
Opt. NLR
Opt.
PID/NLR
[mV]
200
150
100
50
0
0
1
2
3
4
5 [mF]
Default
PID/NLR
Opt. PID,
No NLR
Default PID,
Opt. NLR
Opt.
PID/NLR
Load transient peak voltage deviation vs. external capacitance.
Step-change (5-15-5 A). Parallel coupling of capacitors with 470 μF/10 Pȍ,
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, fsw = 320 kHz, di/dt = 2 A/μs
Load transient vs. Switch Frequency
[mV]
240
200
160
120
80
40
0
200
300
400
500
600 [kHz]
Load transient peak voltage deviation vs. frequency.
Step-change (5-15-5 A).
TP1 = +25 °C, VI = 12 V, VO = 1.0 V, CO = 470 μF/10 mŸ
Default
PID/NLR
Opt. PID, No
NLR
Default PID,
Opt. NLR
Opt.
PID/NLR
Load transient peak voltage deviation vs. external capacitance.
Step-change (5-15-5 A). Parallel coupling of capacitors with 470 μF/10 Pȍ,
TP1 = +25 °C, VI = 12 V, VO = 3.3 V, fsw = 320 kHz, di/dt = 2 A/μs
Output Load Transient Response, Default PID/NLR
Output voltage response to load current
step-change (5-15-5 A) at:
TP1 = +25 °C, VI = 12 V, VO = 1.0 V
di/dt = 2 A/μs, fsw = 320 kHz,
CO = 470 μF/10 mŸ
Top trace: output voltage (200
mV/div.).
Bottom trace: load current (5
A/div.).
Time scale: (0.1 ms/div.).
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MDC_OKDx-T/40-W12-xxx-C.A04 Page 15 of 38