LP3985 Datasheet – CMOS Voltage Regulator ( PDF )

Part Number : LP3985

Function : 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator

Package : DSBGA-5, SOT-23 Type

Manufacturers : Texas Instruments

Pinouts :

LP3985 datasheet


Description :

The LP3985 is designed for portable and wireless applications with demanding performance and space requirements. Power supply rejection is better than 50 dB at low frequencies and starts to roll off at 1 kHz. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits.


• Miniature 5-I/O DSBGA and USON Package
• Logic Controlled Enable
• Stable with Ceramic and High Quality Tantalum Capacitors
• Fast Turn-on
• Thermal Shutdown and Short-Circuit Current Limit

Applications :

• CDMA Cellular Handsets
• Wideband CDMA Cellular Handsets
• GSM Cellular Handsets
• Portable Information Appliances

Other data sheets within the file :

LP3985IBL-2.5, LP3985IBL-2.5EV


LP3985 Datasheet PDF Download

LP3985 pdf

APL5156 Datasheet PDF – 150mA, LDO Regulator – Anpec

Part Number : APL5156

Function : High Input Voltage, Low Quiescent Current, 150mA LDO Regulator

Pakcage : SOT-23-5, SOT-89, and SOP-8P type

Manufacturers : Anpec Electronics

Pinouts :

APL5156 datasheet


Description :

The APL5156 is a low ground current linear regulator,which operates with input voltage from 6.5V to 25V and delivers output current up to 150mA. Typical dropout voltage is only 1.9V at 150mA loading. This combination of the high voltage and the low ground current makes the APL5156 ideal for USB and portable devices, using 2-cell or 3-cell Li-Ion battery inputs.The IC is stable with aluminum, tantalum, and ceramic capacitors. It requires a 2.2mF or greater capacitor for stability. The IC has many protection functions, including over-temperature, current-limit, reverse battery, and reverse leakage protections which prevent the device from thermal over-load, current over-load, reverse connection of the battery and output current reversing to the VIN.

Features :

• Wide  Operating V oltage : 6.5V~25V
• Ultra  Low Ground  Current  :  70mA
• High Output  Accuracy : –2% Over T emperature
• Excellent  Load/Line Transient
• Low  Dropout V oltage : 1900mv @ 150mA
• Fixed Output Voltages for 5V/3.3V or Adjustable Voltage
• Built-In Reverse Battery  Protection
• Built-In Reverse Leakage Protection
• Built-In  Current-Limit  Protection
• Built-In Over-T emperature Protection
• Zero  Shutdown  Current
• Internal Soft-Start Function 0.5ms~1.5ms (max) Over Temperature
• POR Scheme  to Prevent Vout Spike
• Stable  with  Aluminum,   Tantalum,  or  Ceramic Capacitors
• Lead Free and Green Devices Available(RoHS Compliant)

Other data sheets within the file : APL-5156


APL5156 Datasheet PDF Download

APL5156 pdf