Integrated Circuits (ICs)

LT1175MPS8-5#PBF

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Analog Devices

500MA NEGATIVE LOW DROPOUT MICROPOWER REGULATOR

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DocumentsR308 Reliability Data Datasheet

Integrated Circuits (ICs)

LT1175MPS8-5#PBF

Active

Analog Devices

500MA NEGATIVE LOW DROPOUT MICROPOWER REGULATOR

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DocumentsR308 Reliability Data Datasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT1175MPS8-5#PBF

Control Features	Enable, Current Limit
Current - Output	500 mA
Current - Quiescent (Iq)	80 µA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-55 °C
Output Configuration	Negative
Output Type	1.81 mOhm
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
PSRR [Max]	60 dB
PSRR [Min]	15 dB
Supplier Device Package	8-SO
Voltage - Input (Max) [Max]	-20 V
Voltage - Output (Min/Fixed) [Min]	-5 V
Voltage Dropout (Max) [Max]	0.7 V

LT1175 Series

500mA Negative Low Dropout Micropower Regulator

Part	Current - Output	Operating Temperature [Min]	Operating Temperature [Max]	Number of Regulators	Supplier Device Package	Control Features	Output Configuration	Voltage Dropout (Max) [Max]	Voltage - Output (Min/Fixed)	Package / Case	Mounting Type	Output Type	Voltage - Input (Max) [Max]	Current - Quiescent (Iq)	Voltage - Output (Max) [Max]	Output Type	PSRR [Max]	PSRR [Min]	Voltage - Output (Min/Fixed) [Min]	Package / Case [y]	Package / Case [x]	Package / Case	Package / Case
Analog Devices LT1175IQ#TRPBF	500 mA	-40 °C	125 ¯C	1	DDPAK-5	Current Limit Enable	Negative	0.7 V	-3.8 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Surface Mount	Adjustable	-20 V	80 µA	-19.3 V
Analog Devices LT1175IST-5	500 mA	-40 °C	125 ¯C	1	SOT-223-3	Current Limit Enable	Negative	0.7 V		TO-261-4 TO-261AA	Surface Mount		-20 V	80 µA		1.81 mOhm	60 dB	15 dB	-5 V
Analog Devices LT1175MPS8-5#PBF	500 mA	-55 °C	125 ¯C	1	8-SO	Current Limit Enable	Negative	0.7 V		8-SOIC	Surface Mount		-20 V	80 µA		1.81 mOhm	60 dB	15 dB	-5 V	3.9 mm	0.154 in
Analog Devices LT1175CN8-5#PBF	500 mA	0 °C	125 ¯C	1	8-PDIP	Current Limit Enable	Negative	0.7 V		8-DIP	Through Hole		-20 V	80 µA		1.81 mOhm	60 dB	15 dB	-5 V			0.3 in	7.62 mm
Analog Devices LT1175IS8-5#TRPBF	500 mA	-40 °C	125 ¯C	1	8-SO	Current Limit Enable	Negative	0.7 V		8-SOIC	Surface Mount		-20 V	80 µA		1.81 mOhm	60 dB	15 dB	-5 V	3.9 mm	0.154 in
Analog Devices LT1175IT#PBF	500 mA	-40 °C	125 ¯C	1	TO-220-5	Current Limit Enable	Negative	0.7 V	-3.8 V	TO-220-5	Through Hole	Adjustable	-20 V	80 µA	-19.3 V
Analog Devices LT1175IQ-5#TRPBF	500 mA	-40 °C	125 ¯C	1	DDPAK-5	Current Limit Enable	Negative	0.7 V		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Surface Mount		-20 V	80 µA		1.81 mOhm	60 dB	15 dB	-5 V
Analog Devices LT1175MPQ#TRPBF	500 mA	-55 °C	125 ¯C	1	DDPAK-5	Current Limit Enable	Negative	0.7 V	-3.8 V	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Surface Mount	Adjustable	-20 V	80 µA	-19.3 V
Analog Devices LT1175CT#06PBF	500 mA	0 °C	125 ¯C	1	TO-220-5 Flow 6	Current Limit Enable	Negative	0.7 V	-3.8 V	TO-220-5	Through Hole	Adjustable	-20 V	80 µA	-19.3 V
Analog Devices LT1175CQ-5#PBF	500 mA	0 °C	125 ¯C	1	DDPAK-5	Current Limit Enable	Negative	0.7 V		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Surface Mount		-20 V	80 µA		1.81 mOhm	60 dB	15 dB	-5 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	$ 24.43
		10	$ 17.99
		25	$ 16.34
		100	$ 14.50
		250	$ 13.61
		500	$ 13.46

Description

General part information

LT1175 Series

The LT1175 is a negative micropower low dropout regulator. It features 45μA quiescent current, dropping to 10μA in shutdown. A new reference amplifier topology gives precision DC characteristics along with the ability to maintain good loop stability with an extremely wide range of output capacitors. Very low dropout voltage and high efficiency are obtained with a unique power transistor anti-saturation design. Adjustable and fixed 5V versions are available.Several new features make the LT1175 very user-friendly. TheSHDNpin can interface directly to either positive or negative logic levels. Current limit is user-selectable at 200mA, 400mA, 600mA and 800mA. The output can be forced to reverse voltage without damage or latch-up. Unlike some earlier designs, the increase in quiescent current during a dropout condition is actively limited.The LT1175 has complete blowout protection with current limiting, power limiting and thermal shutdown. Special attention was given to the problem of high temperature operation with micropower operating currents, preventing output voltage rise under no-load conditions. The LT1175 is available in 8-pin PDIP and SO packages, 3-lead SOT-223 as well as 5-pin surface mount DD and through-hole TO-220 packages. The 8-pin SO package is specially constructed for low thermal resistance.ApplicationsAnalog SystemsModemsInstrumentationA/D and D/A ConvertersInterface DriversBattery-Powered Systems