Description
Linear Technology LT1945EMS DC / DC Converter Dual Output +/- 34V 0.25A SMT / SMD MSOP-10
LT1945 – Dual Micropower DC/DC Converter with Positive and Negative Outputs
Features
Generates Well-Regulated Positive and Negative Outputs
Low Quiescent Current:
20µA in Active Mode (per Converter)
Operates with VIN as Low as 1.2V
Low VCESAT Switch: 250mV at 300mA
Uses Small Surface Mount Components
High Output Voltage: Up to ±34V
Tiny 10-Pin MSOP Package
The LT1945EMS is a Dual Micropower DC/DC Converter with positive and negative outputs. Each converter is designed with a 350mA current limit and an input voltage range of 1.2 to 15V, making it ideal for a wide variety of applications. Both converters feature a quiescent current of only 20µA at no load, which further reduces to 0.5µA in shutdown. A current limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current. The 36V switch allows high voltage outputs up to ±34V to be easily generated without the use of costly transformers. The LT1945’s low off-time of 400ns permits the use of tiny, low profile inductors and capacitors to minimize footprint in space-conscious portable applications. The LT1945 contains additional circuitry to provide protection during start-up and under short-circuit conditions.
- Generates well-regulated positive and negative outputs
- Low quiescent current (20µA in active mode per converter, <1µA in shutdown mode)
- Operates with VIN as low as 1.2V
- Low VCESAT switch (250mV at 300mA)
- Uses small surface mount components
- High output voltage (up to ±34V)
Applications
Computers & Computer Peripherals; Portable Devices; Power Management; Imaging, Video & Vision; Multimedia; Consumer Electronics
Manufacturer:Linear Technology
Datasheet:Linear/LT1945EMS.pdf
