LP3905_TI 面向低功耗手持式应用的电源 IC (PMIC)

LP3905的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：多通道 IC (PMIC)
功能描述：面向低功耗手持式应用的电源 IC (PMIC)
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LP3905的产品详情：

LP3905 is a multi-functional Power Management Unit, optimized for low power handheld applications. This device integrates two 600mA DC-DC buck regulators and two 150mA linear regulators. Fixed and adjustable buck output versions are available. The LP3905 additionally features two enable pins for the device output control and is offered in an WSON package.

LP3905的优势和特性：

Two Buck Regulators for Powering High Current Processor Functions or Peripheral Devices
Two Linear Regulators for Powering Internal Processor Functions and I/Os
One Enable Pin for Buck1 and Linear Regulators 1 and 2
Separate Enable Pin for Buck2
Thermal and Current Overload Protection
Small 14–Pin WSON Package (4x4mmx0.8mm)

Key Specifications

Buck Regulators

Fixed and Adjustable Voltage Options, Range 1.0V to 3.3V(1)
Up to 90% Efficiency
Auto-Switching PFM-PWM Mode and Fixed PWM Mode
2MHz PWM Fixed Switching Frequency (Typ)
600mA Output Current
±4% Output Voltage Accuracy Over Temp
Internal SoftStart
2.2μH Inductor, 10μF Input and Output Caps

Linear Regulators

Output Options in the Range 1.5V to 3.3V
13.5μVrms Output Voltage Noise
PSRR - 70dB @ 1kHz
±3% Output Voltage Accuracy Over Full Line and Load Regulation
0mA to 150mA Output Current
Cin = 1.0μF, Cout = 0.47μF for 100mA O/P
Cin = 1.0μF, Cout = 1.0μF for 150mA O/P
80mV Dropout Voltage

LP3905的参数（英文）：

Regulated outputs (#)
4
Vin (Min) (V)
3
Vin (Max) (V)
5.5
Iout (Max) (A)
0.6
Rating
Catalog
LDO
2
Iq (Typ) (mA)
0.14
Features
Enable Pin, Over Current Protection, Thermal Shutdown
Shutdown current (ISD) (Typ) (uA)
6.5
Switching frequency (Typ) (kHz)
2000
Configurability
Factory programmable, Hardware configurable

LP3905具体的完整产品型号参数及价格（美元）：

LP3905的完整型号有：LP3905SD-A3/NOPB，以下是这些产品的关键参数及官网采购报价：

LP3905SD-A3/NOPB，工作温度：-40 to 85，封装：WSON (NHL)-14，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LP3905SD-A3/NOPB的批量USD价格：1.136（1000+）

LP3905的评估套件：

LP3905的电路图解：

LP3905的评估套件：