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參數(shù)資料
| 型號： | LP3906SQX-TKXII |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 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 |
| 文件頁數(shù)： | 1/40頁 |
| 文件大?。?/td> | 4200K |
| 代理商： | LP3906SQX-TKXII |
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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 |
|---|---|
| LP3906SQX-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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3906SQX-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 |
| LP3907 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface |
| LP3907QSQ-JJXP/NOPB | 功能描述:上下轉(zhuǎn)換器 Dual Hi-Current SD DC/DC RoHS:否 制造商:Texas Instruments 產(chǎn)品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-128 |
| LP3907QSQ-JXI7/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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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