LP3906

Absolute Maximum Ratings (Notes 1, 2)

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.

V_IN, SDA, SCL ..................−0.3V to +6V
GND to GND SLUG.................... ±0.3V
Power Dissipation (P_{D_MAX})
(T_A=85°C, T_MAX=125°C, (Note 5)) ..........1.43 W
Junction Temperature (TJ-MAX)............. 150°C
Storage Temperature Range........ −65°C to +150°C
Maximum Lead Temperature (Soldering.........260°C
ESD Ratings
Human Body Model (Note 4)............. ... 2 kV

Operating Ratings (Notes 1, 2, 7)
Bucks
V_IN .........................2.7V to 5.5V
V_EN.............. ..... ... 0 to (V_IN + 0.3V)
Junction Temperature (T_J) Range ......−40°C to +125°C
Ambient Temperature (T_A) Range (Note 6) ..−40°C to +85°C
Thermal Properties (Notes 3, 5, 6)
Junction-to-Ambient Thermal Resistance
(_JA)SQA024AG ............... .. ...28°C/W

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.