LT3028EDHC#PBF

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Analog Devices

DUAL 100MA/500MA LOW DROPOUT, LOW NOISE, MICROPOWER REGULATORS WITH INDEPENDENT INPUTS

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LT3028EDHC#PBF

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Analog Devices

DUAL 100MA/500MA LOW DROPOUT, LOW NOISE, MICROPOWER REGULATORS WITH INDEPENDENT INPUTS

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DocumentsDatasheet R386 Reliability Data

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT3028EDHC#PBF

Control Features	Enable
Current - Output	500 mA, 100 mA
Mounting Type	Surface Mount
Number of Regulators	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	16-WFDFN Exposed Pad
Protection Features	Over Temperature, Reverse Polarity, Over Current
PSRR	65 dB
Supplier Device Package	16-DFN (5x3)
Voltage - Input (Max) [Max]	20 V
Voltage - Output (Max) [Max]	20 V
Voltage Dropout (Max) [Max]	0.45 V, 0.47 V

LT3028 Series

Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulators with Independent Inputs

Part	Mounting Type	Current - Output	Voltage - Input (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Control Features	Package / Case [custom]	Package / Case	Package / Case [custom]	Number of Regulators	Output Type	Protection Features	Supplier Device Package	Voltage Dropout (Max) [Max]	PSRR	Voltage - Output (Max) [Max]
Analog Devices LT3028IFE#PBF	Surface Mount	100 mA 500 mA	20 V	125 °C	-40 °C	Positive	Enable	0.173 "	16-TSSOP Exposed Pad	4.4 mm	2	Adjustable	Over Current Over Temperature Reverse Polarity	16-TSSOP-EP	0.45 V 0.47 V	65 dB	20 V
Analog Devices LT3028IDHC#PBF	Surface Mount	100 mA 500 mA	20 V	125 °C	-40 °C	Positive	Enable		16-WFDFN Exposed Pad		2	Adjustable	Over Current Over Temperature Reverse Polarity	16-DFN (5x3)	0.45 V 0.47 V	65 dB	20 V
Analog Devices LT3028IDHC#TRPBF	Surface Mount	100 mA 500 mA	20 V	125 °C	-40 °C	Positive	Enable		16-WFDFN Exposed Pad		2	Adjustable	Over Current Over Temperature Reverse Polarity	16-DFN (5x3)	0.45 V 0.47 V	65 dB	20 V
Analog Devices LT3028EFE#PBF	Surface Mount	100 mA 500 mA	20 V	125 °C	-40 °C	Positive	Enable	0.173 "	16-TSSOP Exposed Pad	4.4 mm	2	Adjustable	Over Current Over Temperature Reverse Polarity	16-TSSOP-EP	0.45 V 0.47 V	65 dB	20 V
Analog Devices LT3028IFE#TRPBF	Surface Mount	100 mA 500 mA	20 V	125 °C	-40 °C	Positive	Enable	0.173 "	16-TSSOP Exposed Pad	4.4 mm	2	Adjustable	Over Current Over Temperature Reverse Polarity	16-TSSOP-EP	0.45 V 0.47 V	65 dB	20 V
Analog Devices LT3028EDHC#PBF	Surface Mount	100 mA 500 mA	20 V	125 °C	-40 °C	Positive	Enable		16-WFDFN Exposed Pad		2	Adjustable	Over Current Over Temperature Reverse Polarity	16-DFN (5x3)	0.45 V 0.47 V	65 dB	20 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 10.26
		10	$ 7.14
		73	$ 5.62
		146	$ 5.25
		292	$ 4.94
		511	$ 4.73
		1022	$ 4.51

Description

General part information

LT3028 Series

The LT3028 is a dual, micropower, low noise, low dropout regulator with independent inputs. With an external 0.01µF bypass capacitor, output noise is a low 20µVRMSover a 10Hz to 100kHz bandwidth. Designed for use in battery-powered systems, the low 30µA quiescent current per output makes it an ideal choice. In shutdown, quiescent current drops to less than 0.1µA. Shutdown control is independent for each output, allowing for flexibility in power management. The device is capable of operating over an input voltage range of 1.8V to 20V. Output 1 can supply 500mA of output current with a dropout voltage of 320mV. The device can supply 100mA of output current from Output 2 with a dropout voltage of 300mV. Quiescent current is well controlled in dropout.The LT3028 regulator is stable with output capacitors as low as 1µF for the 100mA output and 3.3µF for the 500mA output. Small ceramic capacitors can be used without the series resistance required by other regulators.Internal protection circuitry includes reverse-battery protection, current limiting and thermal limiting protection. The device is available as an adjustable device with a 1.22V reference voltage. The LT3028 regulator is available in the thermally enhanced 16-lead TSSOP and 16-lead, low profile (5mm × 3mm × 0.75mm) DFN packages.ApplicationsCellular PhonesPagersBattery-Powered SystemsFrequency SynthesizersWireless ModemsTracking/Sequencing Power Supplies