LP3988_TI 具有电源正常指示和使能功能的 150mA、低压降稳压器

LP3988的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：线性和低压降 (LDO) 稳压器
功能描述：具有电源正常指示和使能功能的 150mA、低压降稳压器
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LP3988的产品详情：

The LP3988 is a 150-mA low dropout regulator designed specially to meet requirements of portable battery applications. The LP3988 is designed to work with space-saving, small 1-µF ceramic capacitors. The LP3988 features a Power Good (PG) output that indicates a faulty output condition. The device is ideal for mobile phone and similar battery-powered wireless applications. It provides up to 150 mA output current from a 2.5-V to 6-V input, consuming less than 1 µA in disable mode and has fast turnon time less than 200 µs.

The LP3988 device's performance is optimized for battery-powered systems to deliver low noise, extremely low dropout voltage, and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.

Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power-supply rejection is maintained down to lower input-voltage levels common to battery-operated circuits.

The LP3988 is available in a 5-pin SOT-23 package and a 5-pin thin DSBGA package. Performance is specified for −40°C to +125°C temperature range. For all available output voltage and package options, see the Package Option Addendum (POA) at the end of the data sheet.

For all available packages, see the orderable addendum at the end of the data sheet. Body size dimension is maximum.

LP3988的优势和特性：

Input Voltage Range: 2.5 V to 6 V
Output Current: 150 mA
PSRR at 10 kHz: 40 dB
Quiescent Current When Shut Down: ≤ 1μA
Fast Turnon Time: 100 μs (Typical)
Dropout With 150-mA load: 80 mV (Typical)
Junction Temperature Range for Operation: ?40°C to +125°C
Power-Good Flag Output
Logic Controlled Enable
Thermal Shutdown and Short-Circuit Current Limit
Stable with Ceramic and High-Quality Tantalum Capacitors

LP3988的参数（英文）：

Output options
Fixed Output
Iout (Max) (A)
0.15
Vin (Max) (V)
6
Vin (Min) (V)
2.5
Vout (Max) (V)
3.3
Vout (Min) (V)
1.8
Fixed output options (V)
1.85, 2.5, 2.6, 2.85, 3, 3.3
Noise (uVrms)
220
Iq (Typ) (mA)
0.085
Thermal resistance θJA (°C/W)
171
Rating
Catalog
Load capacitance (Min) (μF)
1
Regulated outputs (#)
1
Features
Enable, Power good
Accuracy (%)
2
PSRR @ 100 KHz (dB)
19
Dropout voltage (Vdo) (Typ) (mV)
80
Operating temperature range (C)
-40 to 125

LP3988具体的完整产品型号参数及价格（美元）：

LP3988的完整型号有：LP3988IMF-2.5/NOPB、LP3988IMF-3.0/NOPB、LP3988IMF-3.3/NOPB、LP3988IMFX-2.5/NOPB、LP3988IMFX-2.85/NOPB、LP3988IMFX-3.3/NOPB、LP3988ITL-1.85/NOPB，以下是这些产品的关键参数及官网采购报价：

LP3988IMF-2.5/NOPB，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，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LP3988IMF-2.5/NOPB的批量USD价格：.264（1000+）

LP3988IMF-3.0/NOPB，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，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LP3988IMF-3.0/NOPB的批量USD价格：.22（1000+）

LP3988IMF-3.3/NOPB，工作温度：PropertyValue，封装：SOT-23 (DBV)-5，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LP3988IMF-3.3/NOPB的批量USD价格：.264（1000+）

LP3988IMFX-2.5/NOPB，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：3000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LP3988IMFX-2.5/NOPB的批量USD价格：.22（1000+）

LP3988IMFX-2.85/NOPB，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：3000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LP3988IMFX-2.85/NOPB的批量USD价格：.22（1000+）

LP3988IMFX-3.3/NOPB，工作温度：PropertyValue，封装：SOT-23 (DBV)-5，包装数量MPQ：3000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LP3988IMFX-3.3/NOPB的批量USD价格：.22（1000+）

LP3988ITL-1.85/NOPB，工作温度：PropertyValue，封装：DSBGA (YZR)-5，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网LP3988ITL-1.85/NOPB的批量USD价格：.22（1000+）

LP3988的评估套件：

LP3988的电路图解：

LP3988的评估套件：