LD49100PU12RY

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STMicroelectronics

1 A, LOW QUIESCENT CURRENT, LOW-NOISE VOLTAGE REGULATOR WITH SOFT START - AUTOMOTIVE GRADE

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LD49100PU12RY

Active

STMicroelectronics

1 A, LOW QUIESCENT CURRENT, LOW-NOISE VOLTAGE REGULATOR WITH SOFT START - AUTOMOTIVE GRADE

Find alt

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Description Specifications Series Pricing CAD Documents

Description

General part information

LD49100 Series

The LD49100 provides 1 A maximum current with an input voltage range from 1.5 V to 5.5 V and a typical dropout voltage of 200 mV. The device is stable with ceramic capacitors on the input and output.

The ultra low-dropout voltage, low quiescent current and low-noise features make it suitable for a wide range of automotive applications. Power supply rejection is 70 dB at low frequency and starts to roll off at 10 kHz. Enable logic control function puts the LD49100 in shutdown mode, allowing a total current consumption lower than 1 μA.

The device features a precise Power Good indicator, useful to monitor and sequence functions. Internal 1 ms soft-start circuit allows the reduction of inrush current.

Technical Specifications

Parameters and characteristics for this part

Specification	LD49100PU12RY

Control Features	Enable
Current - Output	1 A
Current - Quiescent (Iq)	50 µA
Current - Supply (Max)	300 µA
Grade	Automotive
Mounting Type	Wettable Flank, Surface Mount
Number of Regulators	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package / Case	6-VDFN Exposed Pad
Package Length	3 mm
Package Name	6-DFN
Package Width	3 mm
Protection Features	Over Current, Over Temperature
PSRR (Maximum)	65 dB
PSRR (Minimum)	62 dB
Qualification	AEC-Q100
Voltage - Input (Max)	5.5 V
Voltage - Output (Min/Fixed)	1.2 V
Voltage Dropout (Max)	0.4 V

LD49100 Series

Part	Qualification	Output Configuration	Operating Temperature (Max)	Operating Temperature (Min)	Current - Output	Control Features	Output Type	Number of Regulators	Mounting Type	PSRR (Minimum)	PSRR (Maximum)	Current - Quiescent (Iq)	Grade	Voltage Dropout (Max)	Voltage - Output (Min/Fixed)	Voltage - Input (Max)	Package Width	Package Name	Package Length	Package / Case	Current - Supply (Max)	Protection Features	Voltage - Output (Max)
STMicroelectronics LD49100PU12RY	AEC-Q100	Positive	125 °C	-40 °C	1 A	Enable	Fixed	1	Surface Mount Wettable Flank	62 dB	65 dB	50 µA	Automotive	0.4 V	1.2 V	5.5 V	3 mm	6-DFN	3 mm	6-VDFN Exposed Pad	300 µA	Over Current Over Temperature
STMicroelectronics LD49100PU15RY	AEC-Q100	Positive	125 °C	-40 °C	1 A	Enable Power Good	Fixed	1	Surface Mount Wettable Flank	62 dB	65 dB	50 µA	Automotive	0.4 V	1.5 V	5.5 V	3 mm	6-DFN	3 mm	6-VDFN Exposed Pad	300 µA	Over Current Over Temperature
STMicroelectronics LD49100PU33RY	AEC-Q100	Positive	125 °C	-40 °C	1 A	Enable	Fixed	1	Surface Mount Wettable Flank	62 dB	65 dB	50 µA	Automotive	0.4 V	3.3 V	5.5 V	3 mm	6-DFN	3 mm	6-VDFN Exposed Pad	300 µA	Over Current Over Temperature
STMicroelectronics LD49100PURY	AEC-Q100	Positive	125 °C	-40 °C	1 A	Enable	Adjustable	1	Surface Mount Wettable Flank	65 dB	70 dB	50 µA	Automotive	0.4 V	0.8 V	5.5 V	3 mm	6-DFN	3 mm	6-VDFN Exposed Pad	300 µA	Over Current Over Temperature	4.5 V
STMicroelectronics LD49100PU10RY	AEC-Q100	Positive	125 °C	-40 °C	1 A	Enable Power Good	Fixed	1	Surface Mount Wettable Flank			50 µA	Automotive	0.4 V	1 V	5.5 V	3 mm	6-DFN	3 mm	6-VDFN Exposed Pad	300 µA	Over Current Over Temperature
STMicroelectronics LD49100PU25RY	AEC-Q100	Positive	125 °C	-40 °C	1 A	Enable	Fixed	1	Surface Mount Wettable Flank	62 dB	65 dB	50 µA	Automotive	0.4 V	2.5 V	5.5 V	3 mm	6-DFN	3 mm	6-VDFN Exposed Pad	300 µA	Over Current Over Temperature
STMicroelectronics LD49100PU18RY	AEC-Q100	Positive	125 °C	-40 °C	1 A	Enable	Fixed	1	Surface Mount Wettable Flank	62 dB	65 dB	50 µA	Automotive	0.4 V	1.8 V	5.5 V	3 mm	6-DFN	3 mm	6-VDFN Exposed Pad	300 µA	Over Current Over Temperature

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources