mb3769apf Fujitsu Microelectronics, Inc., mb3769apf Datasheet

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mb3769apf

Manufacturer Part Number
mb3769apf
Description
Switching Regulator Controller
Manufacturer
Fujitsu Microelectronics, Inc.
Datasheet

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FUJITSU SEMICONDUCTOR
ASSP
SWITCHING REGULATOR
CONTROLLER
MB3769A
Note : This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields.
DESCRIPTION
The Fujitsu MB3769A is a pulse-width-modulation controller which is applied to fixed frequency pulse modulation technique.
The MB3769A contains wide band width Op-Amp and high speed comparator to construct very high speed switching regulator
system up to 700 kHz. Output is suitable for power MOS FET drive owing to adoption of totem pole output.
The MB3769A provides stand-by mode at low voltage power supply when it is applied in primary control system.
• On-chip wide band frequency operation amplifier (BW = 8 MHz Typ)
• Output current ± 100 mA (± 600 mA at peak)
• Adjustable Dead-time
• On-chip soft start and quick shut down functions
• Internal circuitry prohibits double pulse at dynamic current limit operation
• Under voltage lock out function (OFF to ON: 10 V Typ, ON to OFF: 8 V Typ)
• On-chip output shut down circuit with latch function at over voltage
• On-chip Zener diode (15 V)
PACKAGES
FEATURES
DATA SHEET
High frequency oscillator (f = 1 to 700 kHz)
On-chip high speed comparator (td = 120 ns Typ)
Internal reference voltage generator provides a stable reference supply (5 V ± 2%)
Low power dissipation (1.5 mA Typ. at standby mode, 8 mA Typ. at operating mode)
High speed switching operation (tr = 60 ns, tf = 30 ns, C
However, it is advised that normal precautions be taken to avoid application of any voltage higher than
maximum rated voltages to this high impedance circuit.
16-pin plastic DIP
(DIP-16P-M04)
L
= 1000 pF Typ)
16-pin plastic SOP
(FPT-16P-M06)
DS04-27202-4E

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