1ch DC/DC converter with switching FET.

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Part #:
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The MB39C006A 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, PFM/PWM control circuit, reference voltage source, and POWERGOOD circuit. External inductor and decoupling capacitor are needed only for the external component.
MB39C006A is small, achieve a highly effective DC/DC converter in the full load range, this is suitable as the built-in power supply for handheld equipment such as mobile phone/PDA, DVDs, and HDDs.


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High efficiency : 96% (Max)
Low current consumption : 30 μA (at PFM)
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)
Built-in PWM operation fixed function
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.