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MB3778

Features: • Wide input voltage range : 3.6 V to 18 V• Low current consumption : 1.7 mA typ. operation, 10 mA max. stand-by• Wide oscillation frequency range:1 kHz to 500 kHz• Built-in timer latch short-circuit protection circuit• Built-in under-voltage lockout circuit...

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SeekIC No. : 004413270 Detail

MB3778: Features: • Wide input voltage range : 3.6 V to 18 V• Low current consumption : 1.7 mA typ. operation, 10 mA max. stand-by• Wide oscillation frequency range:1 kHz to 500 kHz•...

MB3778 Data Sheet

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Part Number:
MB3778
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

• Wide input voltage range : 3.6 V to 18 V
• Low current consumption : 1.7 mA typ. operation, 10 mA max. stand-by
• Wide oscillation frequency range:1 kHz to 500 kHz
• Built-in timer latch short-circuit protection circuit
• Built-in under-voltage lockout circuit
• Built-in 2.46 V reference voltage circuit : 1.23 V output can be obtained from RT terminal
• Variable dead-time provides control over total range
• Built-in stand-by function: power on/off function


Pinout

Connection Diagram


Specifications

                                                                                                                   (Ta = 25 °C)

Parameter Symbol Condition Rating Unit
Min. Max.
Power Supply Voltage VCC - - 20 V
Error Amp. Input Voltage VIN - 30 +10 V
Control Input Voltage VCTL - -0.3 +20 V
Collector Output Voltage VOUT   - 20 V
Collector Output Current IOUT - - 75 mA
Power Dissipation PD Ta +25°C(SOP) - 620*1 mW
Ta+25°C (SSOP) - 444*2 mW
-
Ta < +25°C(DIP) - 1000 mW
Operating Temperature Top - 30 +85 °C
Storage Temperature Tstg - 55 +125 °C

*1: The packages are mounted on the epoxy board (4 cm*4 cm)
*2: The packages are mounted on the epoxy board (10 cm*10 cm)
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.




Description

The MB3778 is a dual switching regulator control IC. It has a two-channel basic circuit that controls PWM system aswitching regulator power. Complete synchronization is achieved by using the same oscillator output wave.

This MB3778 can accept any two of the following types of output voltage: step-down, step-up, or voltage inversion (inverting voltage can be output to only one circuit). The MB3778's low power consumption makes it ideal for use in portable equipment.




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