LP38853SX-ADJ/NOPB
Active3-A, LOW-VIN (1.04-V), ADJUSTABLE ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH ENABLE
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LP38853SX-ADJ/NOPB
Active3-A, LOW-VIN (1.04-V), ADJUSTABLE ULTRA-LOW-DROPOUT VOLTAGE REGULATOR WITH ENABLE
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Technical Specifications
Parameters and characteristics for this part
| Specification | LP38853SX-ADJ/NOPB |
|---|---|
| Control Features | Soft Start, Enable |
| Current - Output | 3 A |
| Current - Quiescent (Iq) | 300 µA |
| Current - Supply (Max) [Max] | 9 mA |
| Mounting Type | Surface Mount |
| Number of Regulators | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | D2PAK (7 Leads + Tab), TO-263-8, TO-263CA |
| Protection Features | Short Circuit, Over Temperature, Under Voltage Lockout (UVLO), Over Current |
| PSRR [Max] | 80 dB |
| PSRR [Min] | 70 dB |
| Supplier Device Package | TO-263 (DDPAK-7) |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Output (Max) [Max] | 1.8 V |
| Voltage - Output (Min/Fixed) | 0.8 V |
| Voltage Dropout (Max) [Max] | 0.45 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 4.86 | |
| 10 | $ 4.36 | |||
| 25 | $ 4.12 | |||
| 100 | $ 3.57 | |||
| 250 | $ 3.39 | |||
| Digi-Reel® | 1 | $ 4.86 | ||
| 10 | $ 4.36 | |||
| 25 | $ 4.12 | |||
| 100 | $ 3.57 | |||
| 250 | $ 3.39 | |||
| Tape & Reel (TR) | 500 | $ 2.60 | ||
| 1000 | $ 2.45 | |||
| 1500 | $ 2.38 | |||
| 2500 | $ 2.30 | |||
| 3500 | $ 2.27 | |||
| Texas Instruments | LARGE T&R | 1 | $ 3.67 | |
| 100 | $ 3.21 | |||
| 250 | $ 2.25 | |||
| 1000 | $ 1.81 | |||
Description
General part information
LP38853 Series
The LP38853 is a high-current, fast-response regulator that 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 NMOS power transistor; VINis the input voltage which supplies power to the load. The use of an external bias rail allows the device to operate from ultra-low VINvoltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an NMOS 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 and microcontroller core voltages, and switch-mode power-supply post regulators. Dropout Voltage: 240 mV (typical) at 3-A load current Low Ground Pin Current: 10 mA (typical) at 3-A load currentSoft Start: Programmable soft-start time
The LP38853 is a high-current, fast-response regulator that 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 NMOS power transistor; VINis the input voltage which supplies power to the load. The use of an external bias rail allows the device to operate from ultra-low VINvoltages. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load current. The use of an NMOS power transistor results in wide bandwidth, yet minimum external capacitance is required to maintain loop stability.
Documents
Technical documentation and resources
