MB39C007 Datasheet, PDF (34/52 Pages) Fujitsu Component Limited. – 2 ch DC/DC Converter IC Built-in Switching FET & voltage detection function, PFM/PWM Synchronous Rectification, and Down Conversion Support

MB39C007
• Current limitation waveform
VO1 : 1 V/div
1
100 μs/div
VO2 : 1 V/div
1
100 μs/div
ILX1 : 1 A/div
4
600 mA
1.5 A
VIN = 3.7 V, VO1 = 2.5 V, MODE = OPEN, Ta = +25 °C
• Voltage detection waveform
1
VIN : 3 V/div
ILX2 : 1 A/div
4
600 mA
1.5 A
VIN = 3.7 V, VO2 = 1.8 V, MODE = OPEN, Ta = +25 °C
1 ms/div
2
VVDET : 1 V/div
3
VXPOR : 3 V/div
VIN = 3.7 V, CTLP = VIN, Ta = +25 °C
Pull-up XPOR to VIN at 1 kΩ.
• Waveform of dynamic output voltage transition (VO1 1.8 V←→2.5 V)
VO1 : 200 mV/div
10 μs/div
2.5 V
11..88VV
1
VVREFIN1 : 200 mV/div
3
610 mV
840 mV
VIN = 3.7 V, lO1 = −800 mA, −576 mA ( 3.125 Ω),
MODE = L, Ta = +25 °C, No VREFIN capacitor
34
DS04-27246-2E