参数资料
型号: LP3906SQ-DJXI
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 稳压器
英文描述: SWITCHING REGULATOR, 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: 4200K
代理商: LP3906SQ-DJXI
LP3906
August 16, 2010
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
2010 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-DJXI/NOPB 功能描述:其他电源管理 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
LP3906SQE-PPXP/NOPB 功能描述:其他电源管理 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
LP3906SQE-VPFP/NOPB 功能描述:其他电源管理 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-FXPI/NOPB 功能描述:其他电源管理 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 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