DatasheetsPDF.com

LP3906

National Semiconductor
Part Number LP3906
Manufacturer National Semiconductor
Description Dual High Current Step Down DC/DC and Dual Linear Regulator
Published Dec 27, 2006
Detailed Description www.DataSheet4U.com LP3906 Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface S...
Datasheet PDF File LP3906 PDF File

LP3906
LP3906

Overview
www.
DataSheet4U.
com LP3906 Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface September 2006 LP3906 Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface General Description The LP3906 is a multi-function, programmable Power Management Unit, optimized for low power FPGAs, Microprocessors and DSPs.
This device integrates two highly efficient 1.
5A Step-Down DC/DC converters with dynamic voltage management (DVM), two 300mA Linear Regulators and a 400kHz I2C compatible interface to allow a host controller access to the internal control registers of the LP3906.
The LP3906 additionally features programmable power-on sequencing and is offered in a tiny 5 x 4 x 0.
8mm LLP-24 pin package.
Features n Compatible with advanced applications processors and FPGAs n 2 LDOs for powering Internal processor functions and I/Os n High speed serial interface for independent control of device functions and settings n Precision internal reference n Thermal overload protection n Current overload protection n 24-lead 5 x 4 x 0.
8 mm LLP package n Software Programmable Regulators Key Specifications Step-Down DC/DC Converter (Buck) n 1.
5A output current n Programmable Vout from: — Buck1 : 0.
8V–2.
0V — Buck2 : 1.
0V–3.
5V n Up to 96% efficiency n 2 MHz PWM switching frequency n ± 3% output voltage accuracy n Automatic soft start Linear Regulators (LDO) n Programmable VOUT of 1.
0V–3.
5V n ± 3% output voltage accuracy n 300 mA output currents n 25 mV (typ) Dropout Applications n FPGA, DSP core power n Applications processors n Peripheral I/O power © 2006 National Semiconductor Corporation DS201978 www.
national.
com www.
DataSheet4U.
com LP3906 Typical Application Circuit 20197801 FIGURE 1.
Typical Application Circuit www.
national.
com 2 www.
DataSheet4U.
com LP3906 (Continued) 20197863 * For information about how schottky diodes can reduce noise in high load, high Vin applications, refer to "Buck Output Ripple Man...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)