Datasheet > LP3907TL-JSXS

LP3907TL-JSXS

更新时间： 2024-11-15 03:46:19

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器
页数	文件大小	规格书
44页	3041K
描述
Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface

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LP3907TL-JSXS 数据手册

December 12, 2007

LP3907

Dual High-Current Step-Down DC/DC and Dual Linear

Regulator with I2C Compatible Interface

General Description

Features

The LP3907 is a multi-function, programmable Power Man-

agement Unit, optimized for low power FPGAs, microproces-

sors and DSPs. This device integrates two highly efficient 1A/

600mA 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 ac-

cess to the internal control registers of the LP3907. The

LP3907 additionally features programmable power-on se-

quencing. Package options include a tiny 4 x 4 x 0.8mm LLP

24–pin package and an even smaller 2.5 x 2.5mm micro SMD

25-bump package.

Compatible with advanced applications processors and

■

FPGAs

2 LDOs for powering Internal processor functions and I/Os

■

High speed serial interface for independent control of

device functions and settings

Precision internal reference

■

Thermal overload protection

Current overload protection

24-lead 4 × 4 × 0.8mm LLP or 25–bump 2.5 x 2.5mm micro

SMD package

Software Programmable Regulators

■

Key Specifications

External Power-on-reset function for Buck1 and Buck2

(i.e., Power Good with delay function)

Undervoltage lock out detector to monitor input supply

voltage

Step-Down DC/DC Converter (Buck)

■

1A/600mA output current

■

Programmable V_OUTfrom:

Buck1 : 0.8V–2.0V @ 1A

—

Applications

Buck2 : 1.0V–3.5V @ 600mA

FPGA, DSP core power

■

Up to 96% efficiency

■

Applications processors

2.1MHz PWM switching frequency

PWM - PFM automatic mode change under low loads

±3% output voltage accuracy

Automatic soft start

Peripheral I/O power

Linear Regulators (LDO)

Programmable V_OUTof 1.0V–3.5V

■

±3% output voltage accuracy

300mA output current

30mV (typ) dropout

300178

www.national.com

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与LP3907TL-JSXS相关器件

型号	品牌	获取价格	描述	数据表
LP3907TL-JSXS/NOPB	TI	获取价格	LP3907 具有 I2C 接口的双路 1A 和 600mA 降压转换器和双路 300mA
LP3907TL-PLNTO/NOPB	TI	获取价格	LP3907 具有 I2C 接口的双路 1A 和 600mA 降压转换器和双路 300mA
LP3907TLX-JJ11/NOPB	TI	获取价格	LP3907 具有 I2C 接口的双路 1A 和 600mA 降压转换器和双路 300mA
LP3907TLX-JSXS/NOPB	NSC	获取价格	IC 1.5 A DUAL SWITCHING CONTROLLER, 2100 kHz SWITCHING FREQ-MAX, PBGA25, 2.50 X 2.50 MM, M
LP3907TLX-JSXS/NOPB	TI	获取价格	LP3907 Dual 1A and 600mA Buck Converters and Dual 300mA LDOs with I<sup>2</sup>
LP390F11IDT	CTS	获取价格	暂无描述
LP390F1YICT	CTS	获取价格	Parallel - Fundamental Quartz Crystal, 39MHz Nom,
LP390F22IAT	CTS	获取价格	Parallel - Fundamental Quartz Crystal, 39MHz Nom,
LP390F25CAT	CTS	获取价格	Parallel - Fundamental Quartz Crystal, 39MHz Nom,
LP390F2XCHT	CTS	获取价格	Parallel - Fundamental Quartz Crystal, 39MHz Nom,

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