MB39C006A

FUJITSU MICROELECTRONICS DATA SHEET DS04-27245-2E ASSP for Power Management Applications 1 ch DC/DC Converter IC Built-in Switching FET & POWERGOOD function, PFM/PWM Synchronous Rectification, and Down Conversion Support MB39C006A ■ DESCRIPTION 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. ■ FEATURES 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 ■ APPLICATIONS ...