LP3855-ADJ Series

1.5-A, 7-V, adjustable ultra-low-dropout voltage regulator with enable

Catalog

1.5-A, 7-V, adjustable ultra-low-dropout voltage regulator with enable

Part	Voltage - Output (Min/Fixed)	Mounting Type	Current - Quiescent (Iq)	Package / Case	Protection Features	Control Features	PSRR [Max]	PSRR [Min]	Voltage - Input (Max) [Max]	Voltage Dropout (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Supply (Max) [Max]	Output Configuration	Current - Output	Supplier Device Package	Output Type	Number of Regulators	Output Type	Voltage - Output (Max) [Max]
Texas Instruments LP3855ET-5.0	5 V	Through Hole	3 mA	TO-220-5 Formed Leads	Over Current Over Temperature Short Circuit	Enable	73 dB	57 dB	7 V	0.38 V	125 °C	-40 °C	10 mA	Positive	1.5 A	TO-220-5	1.81 mOhm	1
Texas Instruments LP3855EMPX-5.0	5 V	Surface Mount	3 mA	TO-261-5 TO-261AB	Over Current Over Temperature Short Circuit	Enable	73 dB	57 dB	7 V	0.44 V	125 °C	-40 °C	10 mA	Positive	1.5 A	SOT-223-5	1.81 mOhm	1
Texas Instruments LP3855EMP-5.0/NOPB	5 V	Surface Mount	3 mA	TO-261-5 TO-261AB	Over Current Over Temperature Short Circuit	Enable	73 dB	57 dB	7 V	0.44 V	125 °C	-40 °C	10 mA	Positive	1.5 A	SOT-223-5	1.81 mOhm	1
Texas Instruments LP3855EMP-2.5/NOPB	2.5 V	Surface Mount	3 mA	TO-261-5 TO-261AB	Over Current Over Temperature Short Circuit	Enable	73 dB	57 dB	7 V	0.44 V	125 °C	-40 °C	10 mA	Positive	1.5 A	SOT-223-5	1.81 mOhm	1
Texas Instruments LP3855EMPX-5.0/NOPB	5 V	Surface Mount	3 mA	TO-261-5 TO-261AB	Over Current Over Temperature Short Circuit	Enable	73 dB	57 dB	7 V	0.44 V	125 °C	-40 °C	10 mA	Positive	1.5 A	SOT-223-5	1.81 mOhm	1
Texas Instruments LP3855ES-3.3	3.3 V	Surface Mount	3 mA	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Over Current Over Temperature Short Circuit	Enable	73 dB	57 dB	7 V	0.38 V	125 °C	-40 °C	10 mA	Positive	1.5 A	TO-263 (DDPAK-5)	1.81 mOhm	1
Texas Instruments LP3855EMP-ADJ	1.23 V	Surface Mount	3 mA	TO-261-5 TO-261AB	Over Current Over Temperature Short Circuit	Enable	73 dB	57 dB	7 V	0.435 V	125 °C	-40 °C	10 mA	Positive	1.5 A	SOT-223-5		1	Adjustable	6.6 V
Texas Instruments LP3855ES-ADJ/NOPB	1.23 V	Surface Mount	3 mA	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Over Current Over Temperature Short Circuit	Enable	73 dB	57 dB	7 V	0.435 V	125 °C	-40 °C	10 mA	Positive	1.5 A	TO-263 (DDPAK-5)		1	Adjustable	6.6 V
Texas Instruments LP3855ET-2.5/NOPB	2.5 V	Through Hole	3 mA	TO-220-5 Formed Leads	Over Current Over Temperature Short Circuit	Enable	73 dB	57 dB	7 V	0.38 V	125 °C	-40 °C	10 mA	Positive	1.5 A	TO-220-5	1.81 mOhm	1
Texas Instruments LP3855ESX-5.0	5 V	Surface Mount	3 mA	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	Over Current Over Temperature Short Circuit	Enable	73 dB	57 dB	7 V	0.38 V	125 °C	-40 °C	10 mA	Positive	1.5 A	TO-263 (DDPAK-5)	1.81 mOhm	1

Catalog

1.5-A, 7-V, adjustable ultra-low-dropout voltage regulator with enable

Key Features

• Input Supply Voltage: 2.5 V to 7 VUltra-Low Dropout VoltageStable with Selected Ceramic CapacitorsLow Ground-Pin CurrentLoad Regulation of 0.06%10-nA Quiescent Current in Shutdown ModeSpecified Output Current of 1.5 A DCOutput Voltage Accuracy ± 1.5%ERRORPin Indicates Output StatusSENSE Option Improves Load RegulationOvertemperature/Overcurrent Protection−40°C to 125°C Junction Temperature RangeInput Supply Voltage: 2.5 V to 7 VUltra-Low Dropout VoltageStable with Selected Ceramic CapacitorsLow Ground-Pin CurrentLoad Regulation of 0.06%10-nA Quiescent Current in Shutdown ModeSpecified Output Current of 1.5 A DCOutput Voltage Accuracy ± 1.5%ERRORPin Indicates Output StatusSENSE Option Improves Load RegulationOvertemperature/Overcurrent Protection−40°C to 125°C Junction Temperature Range

Description

The LP3852 and LP3855 series of fast ultra-low dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3852 and LP3855 are developed on a CMOS process which allows low quiescent-current operation independent of output load current, typically 4 mA at 1.5-A load current. This CMOS process also allows the LP3852 and LP3855 to operate under extremely low dropout conditions, typically 24 mV at 150-mA load current and 240 mV at 1.5-A load current. The LP3852 has anERRORpin; it goes low when the output voltage drops 10% below nominal value. The LP3855 has a SENSE pin to improves regulation at remote loads. The LP3852 and LP3855 are available with fixed output voltages from 1.8 V to 5 V with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature). Contact Texas Instruments Sales for specific voltage option needs. The LP3852 and LP3855 series of fast ultra-low dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3852 and LP3855 are developed on a CMOS process which allows low quiescent-current operation independent of output load current, typically 4 mA at 1.5-A load current. This CMOS process also allows the LP3852 and LP3855 to operate under extremely low dropout conditions, typically 24 mV at 150-mA load current and 240 mV at 1.5-A load current. The LP3852 has anERRORpin; it goes low when the output voltage drops 10% below nominal value. The LP3855 has a SENSE pin to improves regulation at remote loads. The LP3852 and LP3855 are available with fixed output voltages from 1.8 V to 5 V with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature). Contact Texas Instruments Sales for specific voltage option needs.