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LP38858

Features: ` Standard VOUT values of 0.8V and 1.2V` Wide VBIAS Supply operating range of 3.0V to 5.5V` Stable with 10F Ceramic capacitors` Dropout voltage of 130 mV (typical) at 1.5A load current` Precision Output Voltage across all line and load conditions:- ±1.0% VOUT for TJ = 25°C- ±2.0% VOUT fo...

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SeekIC No. : 004398841 Detail

LP38858: Features: ` Standard VOUT values of 0.8V and 1.2V` Wide VBIAS Supply operating range of 3.0V to 5.5V` Stable with 10F Ceramic capacitors` Dropout voltage of 130 mV (typical) at 1.5A load current` Pr...

LP38858 Data Sheet

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Part Number:
LP38858
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/22

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Product Details

Description



Features:

` Standard VOUT values of 0.8V and 1.2V
` Wide VBIAS Supply operating range of 3.0V to 5.5V
` Stable with 10F Ceramic capacitors
` Dropout voltage of 130 mV (typical) at 1.5A load current
` Precision Output Voltage across all line and load conditions:
- ±1.0% VOUT for TJ = 25°C
- ±2.0% VOUT for 0°C TJ +125°C
- ±3.0% VOUT for -40°C TJ +125°C
` Over-Temperature and Over-Current protection
` Available in 5 lead TO-220 and TO-263 packages
` Custom VOUT values between 0.8V and 1.2V are available
` −40°C to +125°C Operating Temperature Range




Application

· ASIC Power Supplies In:
- Desktops, Notebooks, and Graphics Cards, Servers
- Gaming Set Top Boxes, Printers and Copiers
· Server Core and I/O Supplies
· DSP and FPGA Power Supplies
· SMPS Post-Regulator




Pinout

Connection Diagram




Specifications

Storage Temperature Range ............−65°C to +150°C
Lead Temperature
Soldering, 5 seconds.......................................... 260°C
ESD Rating
Human Body Model (Note 2) ................................±2 kV
Power Dissipation (Note 3) ................Internally Limited
VIN Supply Voltage (Survival) ................−0.3V to +6.0V
VBIAS Supply Voltage (Survival)............ −0.3V to +6.0V
VSS Soft-Start Voltage (Survival) ...........−0.3V to +6.0V
VOUT Voltage (Survival) ........................−0.3V to +6.0V
IOUT Current (Survival)..................... Internally Limited
Junction Temperature .......................−40°C to +150°C

Output Current 1500 mA
Output Min 1.2, 0.8 Volt
Input Min Voltage 1.38, 0.98 Volt
Input Max Voltage 5.5 Volt
Dropout Voltage 0.18 Volt
Adjustable Output No
Quiescent Current 10 mA
On/Off Pin No
Error Flag No
RegType LDO
Temperature Min -40 deg C
Temperature Max 125 deg C
Output Voltage 1.2, 0.8 Volt
Output Max 1.2, 0.8 Volt
PowerWise Yes
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Description

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: VBIAS provides voltage to drive the gate of the N-MOS power transistor, while VIN is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low VIN voltages. 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 TO-263 5-Lead packages.

Dropout Voltage: 130mV (typical) at 1.5A load current. Low Ground Pin Current: 14 mA (typical) at 1.5A load current. Soft-Start: Programmable Soft-Start time.

Precision Output Voltage: ±1.0% for TJ = 25°C and ±2.0% for 0°C TJ +125°C, across all line and load conditions






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