參數(shù)資料
型號(hào): LP3906SQ-TKXII
廠(chǎng)商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, QCC24
封裝: 5 X 4 MM, 0.80 MM HEIGHT, LLP-24
文件頁(yè)數(shù): 1/40頁(yè)
文件大小: 4200K
代理商: LP3906SQ-TKXII
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP3906SQ-TKXII/NOPB 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP3906SQ-VPFP 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
LP3906SQ-VPFP S7002740 制造商:Texas Instruments 功能描述:- Tape and Reel 制造商:Texas Instruments 功能描述:Texas Instruments LP3906SQ-VPFP S7002740
LP3906SQ-VPFP/NOPB 功能描述:其他電源管理 RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
LP3906SQX-DJXI 制造商:Texas Instruments 功能描述:Power Management Unit 24-Pin LLP EP T/R