Product Summary
The MB39A106 is a symmetrical-phase type of two-channel, DC/DC converter IC using pulse width modulation (PWM) , incorporating an overcurrent protection circuit (requiring no current sense resistor) and an overvoltage protection circuit. Providing high output driving capabilities, the MB39A106 is suitable for down-conversion. Applications of the MB39A106 include: Home Video Game, IP phone, Printer.
Parametrics
MB39A106 absolute maximum ratings: (1) Power-supply voltage Vcc: 20V; (2) Boot voltage Vcb: 25V (CB terminal) ; (3) Output current Io: 120mA; (4) Peak output current: 800mA (Duty≤5%, t=1/fosc×duty) ; (5) Power dissipation Ta≤+25°C, PD: 1390W; (6) Storage temperature Tstg: 55°C to +125°C.
Features
MB39A106 features: (1) Built-in bootstrap diode; (2) Built-in timer-latch overcurrent protection circuit (requiring no current sense resistor) ; (3) Built-in timer-latch overvoltage protection circuit; (4) Synchronous rectification system providing high efficiency; (5) Power supply voltage range: 6.5V to 18V; (6) PWRGOOD terminals (open-drain) to output the protection status; (7) Symmetrical-phase system reducing the input capacitor loss; (8) Built-in channel control function; (9) One type of package (TSSOP-30pin : 1 type) ; (10) Reference voltage: 3.5V, ±1 %; (11) Error amplifier threshold voltage: 1.23 V 1 % (Ta=0°C; to + 85°C) ; (11) Oscillation frequency range: 100kHz to 500kHz; (12) uilt-in circuit for load-independent soft-start and discharge control; (13) Built-in totem-pole output for N-ch MOS FET; (14) One type of package (TSSOP-30 pin : 1 type) .
Diagrams
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