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SS6610/11G
High-efficiency Synchronous Step-up DC/DC Converter
PRODUCT SUMMARY
High efficiency boos...
www.DataSheet4U.net
SS6610/11G
High-efficiency Synchronous Step-up DC/DC Converter
PRODUCT SUMMARY
High efficiency boost converter Output current up to 500mA No external diode required
DESCRIPTION
The SS6610/11G are high-efficiency step-up DC/DC converters, with a start-up
voltage as low as 0.8V, and an operating
voltage down to 0.7V. Consuming only 20µA of quiescent current, these devices include a built-in synchronous rectifier that reduces size and cost by eliminating the need for an external Schottky diode, and improves overall efficiency by minimizing losses. The switching frequency can range up to 500KHz depending on the load and input
voltage. The output
voltage can be easily set by: 1) two external resistors for 1.8V to 5.5V; 2) connecting FB to OUT to get 3.3V; or 3) connecting FB to GND to get 5.0V. The peak current of the internal switch is fixed at 1A (SS6610G) or 0.65A (SS6611G) for design flexibility.
FEATURES
Quiescent supply current of 20mA. Power-saving shutdown mode (0.1µA typical). Internal synchronous rectifier On-chip low-battery detector. Low battery hysteresis
Pb-free, RoHS compliant MSOP-8
APPLICATIONS
Palmtop and notebook computers. PDAs Wireless phones Pocket organizers. Digital cameras. Hand-held devices with 1 to 3 cells of NiMH/NiCd batteries.
TYPICAL APPLICATION CIRCUIT
VIN + 47µF OFF SHDN SS6610G SS6611G Low Battery Detection LBI REF 0.1µF GND LX OUT 22µH Output 3.3V, 5.0V or adjustable from 1.8V to 5.5V + 47µF up to 300mA output Low-batte...