MB3800 Datasheet, PDF (4/21 Pages) Fujitsu Component Limited. – Switching Regulator Controller (Low Voltage)

3. Block Diagram
MB3800
–IN
1
FB
8
V CC
OSC
3
7
Reference _{0.6 V–}
voltage supply
0.1 V–
1.25 V
–
36 kΩ
+
Error Amp
0.5 V
500 Ω
Sawtooth wave
oscillator
0.1 V
PWM
– Comp.
+
+
+
DTC 0.6 V
Output drive
control circuit
0.3 V
6
GND
Soft start SCP
2
SCP
4
BR/CTL
OUT
5
30 kΩ
4. Absolute Maximum Ratings
Parameter
Power supply voltage
Output source current
Output sink current
Allowable dissipation
Storage temperature
Symbol
V_CC
I_O+
I_O–
P_D
T_stg
Condition
—
FPT-8P-M01, Ta +25C
FPT-8P-M02, Ta +25C
SSOP-8, Ta +25C
—
Rating
Min
Max
—
16
—
–50
—
50
—
570*
—
430*
—
580*
–55
+125
Unit
V
mA
mA
mW
mW
mW
C
*: When mounted on a 10 cm square double-sided epoxy board.
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in
excess of absolute maximum ratings. Do not exceed these ratings.
Document Number: 002-08716 Rev. *A
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