SNOSCT6F March 2013 – January 2017 LP38798
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
- DNT|12
Thermal pad, mechanical data (Package|Pins)
Orderable Information
1 Features
- Wide Operating Input Voltage Range:
3 V to 20 V - Ultra-Low Output Noise: 5 µVRMS
(10 Hz to 100 kHz) - High PSRR: 90 dB at 10 kHz, 60 dB at 100 kHz
- ±1% Output Voltage Initial Accuracy (TJ = 25°C)
- Very Low Dropout: 200 mV (Typical) at 800 mA
- Stable with Ceramic or Tantalum Output Capacitors
- Excellent Line and Load Transient Response
- Current Limit and Overtemperature Protection
- Create a Custom Design Using the LP38798 With the WEBENCH® Power Designer
2 Applications
- RF Power Supplies: PLLs, VCOs, Mixers, LNAs
- Telecom Infrastructure
- Wireless Infrastructure
- Very Low-Noise Instrumentation
- Precision Power Supplies
- High-Speed, High-Precision Data Converters
3 Description
The LP38798-ADJ is a high-performance, low-noise LDO that can supply up to 800 mA output current. Designed to meet the requirements of sensitive RF/Analog circuitry, the LP38798-ADJ implements a novel linear topology on an advanced CMOS process to deliver ultra-low output noise and high PSRR at switching power supply frequencies. The LP38798SD-ADJ is stable with both ceramic and tantalum output capacitors and requires a minimum output capacitance of only 1 µF for stability.
The LP38798-ADJ can operate over a wide input voltage range (3 V to 20 V) making it well suited for many post-regulation applications.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LP38798 | WSON (12) | 4.00 mm × 4.00 mm |
- For all available packages, see the orderable addendum at the end of the data sheet.
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Simplified Schematic
