LP38852 Series

1.5-A, low-VIN (0.93-V), adjustable ultra-low-dropout voltage regulator with enable

Catalog

1.5-A, low-VIN (0.93-V), adjustable ultra-low-dropout voltage regulator with enable

Part	Output Configuration	Voltage - Output (Min/Fixed)	Number of Regulators	Package / Case	Protection Features	Output Type	Voltage - Output (Max) [Max]	Current - Quiescent (Iq)	Control Features	Voltage Dropout (Max) [Max]	Current - Output	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input (Max) [Max]	Supplier Device Package	Mounting Type	PSRR [Min]	PSRR [Max]	Current - Supply (Max) [Max]	Package / Case [y]	Package / Case [x]
Texas Instruments LP38852S-ADJ/NOPB	Positive	0.8 V	1	D2PAK (7 Leads + Tab) TO-263-8 TO-263CA	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	1.8 V	300 µA	Enable Soft Start	0.18 V	1.5 A	125 °C	-40 °C	5.5 V	TO-263 (DDPAK-7)	Surface Mount	65 dB	80 dB	9 mA
Texas Instruments LP38852S-ADJ	Positive	0.8 V	1	D2PAK (7 Leads + Tab) TO-263-8 TO-263CA	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	1.8 V	300 µA	Enable Soft Start	0.18 V	1.5 A	125 °C	-40 °C	5.5 V	TO-263 (DDPAK-7)	Surface Mount	65 dB	80 dB	9 mA
Texas Instruments LP38852T-ADJ	Positive	0.8 V	1	TO-220-7 Formed Leads	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	1.8 V	300 µA	Enable Soft Start	0.18 V	1.5 A	125 °C	-40 °C	5.5 V	TO-220-7	Through Hole	65 dB	80 dB	9 mA
Texas Instruments LP38852MR-ADJ	Positive	0.8 V	1	8-PowerSOIC	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	1.8 V	300 µA	Enable Soft Start	0.18 V	1.5 A	125 °C	-40 °C	5.5 V	8-SO PowerPad	Surface Mount	65 dB	80 dB	9 mA	3.9 mm	0.154 in
Texas Instruments LP38852SX-ADJ/NOPB	Positive	0.8 V	1	D2PAK (7 Leads + Tab) TO-263-8 TO-263CA	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	1.8 V	300 µA	Enable Soft Start	0.18 V	1.5 A	125 °C	-40 °C	5.5 V	TO-263 (DDPAK-7)	Surface Mount	65 dB	80 dB	9 mA
Texas Instruments LP38852MR-ADJ/NOPB	Positive	0.8 V	1	8-PowerSOIC	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	1.8 V	300 µA	Enable Soft Start	0.18 V	1.5 A	125 °C	-40 °C	5.5 V	8-SO PowerPad	Surface Mount	65 dB	80 dB	9 mA	3.9 mm	0.154 in
Texas Instruments LP38852T-ADJ/NOPB	Positive	0.8 V	1	TO-220-7 Formed Leads	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	1.8 V	300 µA	Enable Soft Start	0.18 V	1.5 A	125 °C	-40 °C	5.5 V	TO-220-7	Through Hole	65 dB	80 dB	9 mA
Texas Instruments LP38852SX-ADJ	Positive	0.8 V	1	D2PAK (7 Leads + Tab) TO-263-8 TO-263CA	Over Current Over Temperature Short Circuit Under Voltage Lockout (UVLO)	Adjustable	1.8 V	300 µA	Enable Soft Start	0.18 V	1.5 A	125 °C	-40 °C	5.5 V	TO-263 (DDPAK-7)	Surface Mount	65 dB	80 dB	9 mA

Catalog

1.5-A, low-VIN (0.93-V), adjustable ultra-low-dropout voltage regulator with enable

Key Features

• Input VINRange 0.93 V to 5.5 VAdjustable VOUTRange 0.8 V to 1.8 VWide VBIASSupply Operating Range 3 V to 5.5 VDropout Voltage of 130 mV (Typical) at 1.5-A Load CurrentPrecision Output Voltage Across All Line and Load Conditions:±1.5% VADJfor TJ= 25°C±2% VADJfor 0°C ≤ TJ≤ +125°C±3% VADJfor –40°C ≤ TJ≤ +125°COvertemperature and Overcurrent ProtectionStable with 10-µF Ceramic CapacitorsAvailable in 7-pin TO-220, 7-Pin DDPAK/TO-263, and 8-Pin SO PowerPAD Packages−40°C to +125°C Operating Junction Temperature RangeInput VINRange 0.93 V to 5.5 VAdjustable VOUTRange 0.8 V to 1.8 VWide VBIASSupply Operating Range 3 V to 5.5 VDropout Voltage of 130 mV (Typical) at 1.5-A Load CurrentPrecision Output Voltage Across All Line and Load Conditions:±1.5% VADJfor TJ= 25°C±2% VADJfor 0°C ≤ TJ≤ +125°C±3% VADJfor –40°C ≤ TJ≤ +125°COvertemperature and Overcurrent ProtectionStable with 10-µF Ceramic CapacitorsAvailable in 7-pin TO-220, 7-Pin DDPAK/TO-263, and 8-Pin SO PowerPAD Packages−40°C to +125°C Operating Junction Temperature Range

Description

The LP38852-ADJ is a high-current, fast-response regulator which can maintain output voltage regulation with extremely low input-to-output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: VBIASprovides voltage to drive the gate of the N-MOS power transistor, while VINis the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultralow VINvoltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability. The fast transient response of this device makes it suitable for use in powering DSP, microcontroller core voltages, and switch-mode power supply post-regulators. 130 mV (typical) at 1.5-A load current. 10 mA (typical) at 1.5-A load current. Programmable soft-start time. The LP38852-ADJ is a high-current, fast-response regulator which can maintain output voltage regulation with extremely low input-to-output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: VBIASprovides voltage to drive the gate of the N-MOS power transistor, while VINis the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultralow VINvoltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an N-MOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability. The fast transient response of this device makes it suitable for use in powering DSP, microcontroller core voltages, and switch-mode power supply post-regulators. 130 mV (typical) at 1.5-A load current. 10 mA (typical) at 1.5-A load current. Programmable soft-start time.