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| 型号： | LP3906SQJXXI |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2 A DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, QCC24 |
| 封装： | 5 X 4 MM, 0.80 MM HEIGHT, LLP-24 |
| 文件页数： | 1/40页 |
| 文件大小： | 4197K |
| 代理商： | LP3906SQJXXI |
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LP3906
August 28, 2009
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 Man-
agement Unit, optimized for low power FPGAs, Microproces-
sors 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 ac-
cess to the internal control registers of the LP3906. The
LP3906 additionally features programmable power-on se-
quencing and is offered in a tiny 5 x 4 x 0.8mm LLP-24 pin
package.
Key Specifications
Step-Down DC/DC Converter (Buck)
■ 1.5A output current
■ Programmable Vout from:
— Buck1 : 0.8V–2.0V
— Buck2 : 1.0V–3.5V
■ Up to 96% efficiency
■ 2 MHz PWM switching frequency
■ ±3% output voltage accuracy
■ Automatic soft start
Linear Regulators (LDO)
■ Programmable V
OUT of 1.0V–3.5V
■ ±3% output voltage accuracy
■ 300 mA output currents
■ 25 mV (typ) Dropout
Features
■ 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 5 × 4 × 0.8 mm LLP package
■ Software Programmable Regulators
Applications
■ FPGA, DSP core power
■ Applications processors
■ Peripheral I/O power
2009 National Semiconductor Corporation
201978
www.national.com
LP3906
Dual
High-Current
Step-Down
DC/DC
and
Dual
Linear
Regulator
with
I2C
Compatible
Interface
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LP3906SQ-JXXI/NOPB | 功能描述:其他电源管理 DUAL 1.5A BUCK /DUAL 300MA LDO RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| LP3906SQ-JXXI/NOPB | 制造商:Texas Instruments 功能描述:IC DUAL STEP-DOWN DC/DC LINEAR REG LLP24 |
| LP3906SQ-JXXIEV | 功能描述:BOARD EVALUATION LP3906SQ-JXXI RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:PowerWise® 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LP3906SQ-JXXIEV/NOPB | 功能描述:低压差稳压器 - LDO LP3906 Eval Brd RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| LP3906SQ-PPXP | 制造商:Texas Instruments 功能描述:Power Management Unit 24-Pin LLP EP T/R |
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