LP38858S-1.2/NOPB
Active1.5-A, LOW-VIN (0.98-V), HIGH-ACCURACY, ULTRA-LOW-DROPOUT VOLTAGE REGULATOR
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LP38858S-1.2/NOPB
Active1.5-A, LOW-VIN (0.98-V), HIGH-ACCURACY, ULTRA-LOW-DROPOUT VOLTAGE REGULATOR
Technical Specifications
Parameters and characteristics for this part
| Specification | LP38858S-1.2/NOPB |
|---|---|
| Control Features | Soft Start |
| Current - Output | 1.5 A |
| Current - Quiescent (Iq) | 8.5 mA |
| Current - Supply (Max) [Max] | 15 mA |
| Mounting Type | Surface Mount |
| Number of Regulators | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | 1.81 mOhm |
| Package / Case | TO-263-6, TO-263BA, D2PAK (5 Leads + Tab) |
| Protection Features | Short Circuit, Over Temperature, Under Voltage Lockout (UVLO), Over Current |
| PSRR [Max] | 80 dB |
| PSRR [Min] | 65 dB |
| Supplier Device Package | TO-263 (DDPAK-5) |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Output (Min/Fixed) | 1.2 V |
| Voltage Dropout (Max) [Max] | 0.18 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 | $ 3.89 | |
| 10 | $ 2.94 | |||
| 25 | $ 2.72 | |||
| 45 | $ 2.58 | |||
| 100 | $ 2.27 | |||
| 135 | $ 2.40 | |||
| 250 | $ 2.05 | |||
| 270 | $ 2.31 | |||
| 500 | $ 1.94 | |||
| 540 | $ 2.23 | |||
| 1035 | $ 2.18 | |||
| 2520 | $ 2.11 | |||
| Texas Instruments | TUBE | 1 | $ 4.79 | |
| 100 | $ 3.10 | |||
| 250 | $ 2.33 | |||
| 1000 | $ 1.55 | |||
Description
General part information
LP38858 Series
The LP38858 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 ultra low 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. The LP38858 is available in TO-220 and DDPAK/TO-263 5-Lead packages.
Dropout Voltage:130mV (typical) at 1.5A load current.
Documents
Technical documentation and resources