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LD3985 Datasheet (PDF) - STMicroelectronics

LD3985 Datasheet PDF - STMicroelectronics
Part No. LD3985
Download  LD3985 Click to view

File Size   393.0 Kbytes
Page   14 Pages
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description ULTRA LOW DROP-LOW NOISE BICMOS VOLTAGE REGULATORS LOW ESR CAPACITORS COMPATIBLE

LD3985 Datasheet (PDF)

Go To PDF Page Download Datasheet
LD3985 Datasheet PDF - STMicroelectronics

Part No. LD3985
Download  LD3985 Click to view

File Size   393.0 Kbytes
Page   14 Pages
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description ULTRA LOW DROP-LOW NOISE BICMOS VOLTAGE REGULATORS LOW ESR CAPACITORS COMPATIBLE

LD3985 Datasheet (HTML) - STMicroelectronics

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LD3985 Product details

DESCRIPTION
The LD3985 provides up to 150mA, from 2.5V to 6V input voltage. The ultra low drop-voltage, low quiescent current and low noise make it suitable for low power applications and in battery powered systems. 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 10KHz. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits.

■ INPUT VOLTAGE FROM 2.5V TO 6V
■ STABLE WITH LOW ESR CERAMIC CAPACITORS
■ ULTRA LOW DROPOUT VOLTAGE (100mV TYP. AT 150mA LOAD, 0.4mV TYP. AT 1mA LOAD)
■ VERY LOW QUIESCENT CURRENT (85µA TYP. AT NO LOAD, 170µA TYP. AT 150mA LOAD; MAX 1.5µA IN OFF MODE)
■ GUARANTEED OUTPUT CURRENT UP TO 150mA
■ WIDE RANGE OF OUTPUT VOLTAGE: 1.2V; 1.22V; 1.25V; 1.35V; 1.5V; 1.8V; 2V; 2.1V; 2.2V; 2.4V; 2.5V; 2.6V; 2.7V; 2.8V; 2.85V; 2.9V; 3V; 3.1V; 3.2V; 3.3V; 4.7V; 5V
■ FAST TURN-ON TIME: TYP. 200µs [CO=1µF, CBYP= 10nF AND IO=1mA]
■ LOGIC-CONTROLLED ELECTRONIC SHUTDOWN
■ INTERNAL CURRENT AND THERMAL LIMIT
■ OUTPUT LOW NOISE VOLTAGE 30µVRMS OVER 10Hz to 100KHz
■ S.V.R. OF 60dB AT 1KHz, 50dB AT 10KHz
■ TEMPERATURE RANGE: -40°C TO 125°C



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