9118 Step-Up DC-DC Converter with PFMControl
Features
l External parts: Coil, capacitor
l Output voltage: Settable to between 2.1V to 5.5V in 0.1Vsteps
l Maximum Oscillation frequency :300KHz
l Accuracy of ±2%
l High efficiency :95%
l Package:SOT23,SOT23-3,SOT23-5,SOT89 and TO92
Applications
l Digitalcameras
l Electronicnotebooks and PDAS
l Portable CD/MD players
l Cameras , video equipment
l Communications equipment
l Power supply for microcomputers
General Description
The 9118 Series is a Synchronousstep-up DC/DC Converter with PFM Control.
With the 9118 Series, a step-upswitching DC/DC converter can be configured by using an external coil、capacitor. Thebuilt-in MOSFET is turned off by a protection circuit when the voltage at theLX pin exceeds the limit to prevent it from being damaged.
