MB3885 Fujitsu Microelectronics, Inc., MB3885 Datasheet - Page 22

• Manufacturer Part Number: MB3885
• Description: 1-channel Dc/dc Converter Ic With Synchronous Rectifier
• Manufacturer: Fujitsu Microelectronics, Inc.

22
MB3885
Using the above formulas to determine power consumption, settings should be made with reference to the “Power
Consumption vs. Input Voltage” on the following page, as well as the “Power dissipation vs. Ambient Temperature.”
Vin
VOUT1
VOUT2
I
I
1
2
10
VCC
5 V
Drive
1
Drive
2
I
I
B
T1
1
I
2
T
11
12
13
14
15
16
VB
CB
OUT1
VS
OUT2
PGND
T2
Crss
C
VB
1
Q1
Ciss
1
Bias current
Ibias1 2 mA
Bias current
Ibias2
Crss
t
Ciss
Q2
2
2
2 mA
A
L1
V
O1