1ch DC/DC converter with switching FET.

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Part #:
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The MB39C014 is a current mode type 1-channel DC/DC converter IC built-in switching FET, synchronous rectification, and down conversion support. The device is integrated with a switching FET, oscillator, error amplifier, PWM control circuit, reference voltage source, and POWERGOOD circuit. External inductor and decoupling capacitor are needed only for the external component.
As combining with external parts enables a DC/DC converter with a compact and high load response characteristic, this is suitable as the built-in power supply for such as mobile phone/PDA, DVDs, and HDDs.


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High efficiency : 96% (Max)
Output current (DC/DC) : 800 mA (Max)
Input voltage range : 2.5 V to 5.5 V
Operating frequency : 2.0/3.2 MHz (Typ)
No flyback diode needed
Low dropout operation : For 100% on duty
Built-in high-precision reference voltage generator : 1.20 V 2%
Consumption current in shutdown mode : 1 μA or less
Built-in switching FET : P-ch MOS 0.3 Ω (Typ) N-ch MOS 0.2 Ω (Typ)
High speed for input and load transient response in the current mode
Over temperature protection
Packaged in a compact package : SON10

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1ch DC/DC converter with switching FET.