MB39C007 Datasheet, PDF (1/52 Pages) Fujitsu Component Limited. – 2 ch DC/DC Converter IC Built-in Switching FET & voltage detection function, PFM/PWM Synchronous Rectification, and Down Conversion Support

FUJITSU MICROELECTRONICS
DATA SHEET
DS04-27246-2E
ASSP for Power Management Applications
2 ch DC/DC Converter IC Built-in Switching FET &
voltage detection function, PFM/PWM Synchronous
Rectification, and Down Conversion Support
MB39C007
■ DESCRIPTION
The MB39C007 is a current mode type 2-channel DC/DC converter IC built-in voltage detection, synchronous
rectifier, and down conversion support. The device is integrated with a switching FET, oscillator, error amplifier,
PFM/PWM control circuit, reference voltage source, and voltage detection circuit.
External inductor and decoupling capacitor are needed only for the external component.
MB39C007 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/ch)
• Output current
: 800 mA/ch (Max)
• Input voltage range
: 2.5 V to 5.5 V
• Operating frequency
: 2.0 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 : 1.30 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
: QFN-24
■ APPLICATIONS
• Flash ROMs
• MP3 players
• Electronic dictionary devices
• Surveillance cameras
• Portable GPS navigators
• DVD drives
• IP phones
• Network hubs
• Mobile phones
etc.
Copyright©2008-2009 FUJITSU MICROELECTRONICS LIMITED All rights reserved
2009.9