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LDS3985PU33R +BOM

Very low drop and low noise BiCMOS 300 mA voltage regulator

Manufacturer:

STMicroelectronics
Mfr.Part #:

LDS3985PU33R
Datasheet:

LDS3985PU33R Datasheet (PDF)
Output Configuration:

Positive
Output Type:

Fixed
Number Of Regulators:

1
Voltage - Input (Max):

6V
EDA/CAD Models:

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LDS3985PU33R General Description

With its proven track record in providing stable and efficient power supply, the LDS3985PU33R from STMicroelectronics is a standout choice among voltage regulators. Its ability to operate with minimal input voltage drop, combined with its overcurrent and thermal protection features, showcases STMicroelectronics' commitment to delivering reliable and durable electronic components. Whether it's for low-power microcontrollers, sensors, or other electronic devices, the LDS3985PU33R offers the performance and peace of mind that engineers and designers demand in today's competitive landscape

Key Features

Input voltage from 2.5 V to 6 V
Stable with low ESR ceramic capacitors
Very low dropout voltage (150 mV typ. at 300 mA load, 0.4 mV typ. at 1 mA load)
Very low quiescent current (85 µA typ. at no load, 200 µA typ. at 300 mA load; max.1.5 µA in OFF mode)
Guaranteed output current up to 300 mA
Wide range of output voltages available on request: fixed from 1.25 V to 5 V with 100 mV step
Fast turn-on time: typ. 240 µs
- [C_O = 2.2 µF, C_{BYP= 33 nF and I_O= 1 mA]}
Logic-controlled electronic shutdown
Internal current and thermal limit
Low output voltage noise: 30 µ V_RMS over 10 Hz to 100 kHz
SVR of 55 dB at 1 kHz, 50 dB at 10 kHz
Temperature range: - 40 °C to 125 °C
Automotive grade product available in DFN6 package, temperature range: - 40 °C to 85 °C

Specifications

Output Configuration	Positive	Output Type	Fixed
Number of Regulators	1	Voltage - Input (Max)	6V
Voltage - Output (Min/Fixed)	3.3V	Voltage Dropout (Max)	0.25V @ 300mA
Current - Output	300mA	Current - Quiescent (Iq)	150 µA
Current - Supply (Max)	300 µA	PSRR	55dB ~ 50dB (1kHz ~ 10kHz)
Control Features	Shutdown	Protection Features	Over Current, Over Temperature
Operating Temperature	-40°C ~ 125°C	Mounting Type	Surface Mount
Base Product Number	LDS3985