LT1764A Series

3A, Fast Transient Response, Low Noise, LDO Regulators

Catalog

3A, Fast Transient Response, Low Noise, LDO Regulators

Part	PSRR	Mounting Type	Package / Case [custom]	Package / Case	Package / Case [custom]	Number of Regulators	Output Configuration	Voltage Dropout (Max) [Max]	Supplier Device Package	Voltage - Input (Max) [Max]	Voltage - Output (Max) [Max]	Protection Features	Current - Supply (Max)	Current - Output	Current - Quiescent (Iq)	Output Type	Control Features	Voltage - Output (Min/Fixed)	Operating Temperature [Max]	Operating Temperature [Min]	Output Type
Analog Devices LT1764AEFE#TRPBF	63 dB	Surface Mount	0.173 "	16-TSSOP Exposed Pad	4.4 mm	1	Positive	0.66 V	16-TSSOP-EP	20 V	20 V	Over Current Over Temperature Reverse Polarity	200 mA	3 A	1.5 mA	Adjustable	Enable	1.21 V	125 °C	-40 °C
Analog Devices LT1764EQ-1.5#PBF	63 dB	Surface Mount		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA		1	Positive	0.66 V	DDPAK-5	20 V		Over Current Over Temperature Reverse Polarity	200 mA	3 A	1.5 mA		Enable	1.5 V	125 ¯C	-40 °C	1.81 mOhm
Analog Devices LT1764ET#PBF	63 dB	Through Hole		TO-220-5		1	Positive	0.66 V	TO-220-5	20 V	20 V	Over Current Over Temperature Reverse Polarity	200 mA	3 A	1.5 mA	Adjustable	Enable	1.21 V	125 ¯C	-40 °C
Analog Devices LT1764AET#06PBF	63 dB	Through Hole		TO-220-5		1	Positive	0.66 V	TO-220-5 Flow 6	20 V	20 V	Over Current Over Temperature Reverse Polarity	200 mA	3 A	1.5 mA	Adjustable	Enable	1.21 V	125 °C	-40 °C
Analog Devices LT1764EFE-2.5#PBF	63 dB	Surface Mount	0.173 "	16-TSSOP Exposed Pad	4.4 mm	1	Positive	0.45 V	16-TSSOP-EP	20 V		Over Current Over Temperature Reverse Polarity	200 mA	3 A	1.5 mA		Enable	2.5 V	125 °C	-40 °C	1.81 mOhm
Analog Devices LT1764EQ-1.8#TRPBF	63 dB	Surface Mount		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA		1	Positive	0.66 V	DDPAK-5	20 V		Over Current Over Temperature Reverse Polarity	200 mA	3 A	1.5 mA		Enable	1.8 V	125 ¯C	-40 °C	1.81 mOhm
Analog Devices LT1764ET-1.8#06PBF	63 dB	Through Hole		TO-220-5		1	Positive	0.45 V	TO-220-5 Flow 6	20 V		Over Current Over Temperature Reverse Polarity	200 mA	3 A	1.5 mA		Enable	1.8 V	125 °C	-40 °C	1.81 mOhm
Analog Devices LT1764AMPQ#PBF	63 dB	Surface Mount		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA		1	Positive	0.66 V	DDPAK-5	20 V	20 V	Over Current Over Temperature Reverse Polarity	200 mA	3 A	1.5 mA	Adjustable	Enable	1.21 V	125 °C	-55 °C
Analog Devices LT1764EQ-1.5#TRPBF	63 dB	Surface Mount		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA		1	Positive	0.66 V	DDPAK-5	20 V		Over Current Over Temperature Reverse Polarity	200 mA	3 A	1.5 mA		Enable	1.5 V	125 ¯C	-40 °C	1.81 mOhm
Analog Devices LT1764EQ-3.3#TRPBF	63 dB	Surface Mount		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA		1	Positive	0.66 V	DDPAK-5	20 V		Over Current Over Temperature Reverse Polarity	200 mA	3 A	1.5 mA		Enable	3.3 V	125 ¯C	-40 °C	1.81 mOhm

Catalog

3A, Fast Transient Response, Low Noise, LDO Regulators

Key Features

• Optimized for Fast Transient Response

• Output Current: 3A

• Dropout Voltage: 340mV at 3A

• Low Noise: 40µVRMS(10Hz to 100kHz)

• 1mA Quiescent Current

• Wide Input Voltage Range: 2.7V to 20V

• No Protection Diodes Needed

• Controlled Quiescent Current in Dropout

• Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V

• Adjustable Output from 1.21V to 20V

• <1µA Quiescent Current in Shutdown

• Stable with 10µF Output Capacitor

• Reverse Battery Protection

• No Reverse Current

• Thermal Limiting

• Available in 5-Lead TO-220, DD and 16-Lead TSSOP Packages

Description

The LT1764A is a low dropout regulator optimized for fast transient response. The device is capable of supplying 3A of output current with a dropout voltage of 340mV. Operating quiescent current is 1mA, dropping to <1µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. In addition to fast transient response, the LT1764A has very low output voltage noise which makes the device ideal for sensitive RF supply applications.Output voltage range is from 1.21V to 20V. The LT1764A regulators are stable with output capacitors as low as 10µF. Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse current protection. The device is available in fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V and as an adjustable device with a 1.21V reference voltage. The LT1764A regulators are available in 5-lead TO-220 and DD packages, and 16-lead FE packages.FeaturesLT1764-LT1764AStable With Ceramic Output CapacitorsApplications3.3V to 2.5V Logic Power SupplyPost Regulator for Switching Supplies