LTC1530
PRODUCTIONHigh Power Synchronous Switching Regulator Controller
- Part Models
- 16
- 1ku List Price
- Starting From $5.47
Overview
- High Power Buck Converter from 5V or 3.3V Input
- Adjustable Current Limit in S0-8 with Topside FET RDS(ON) Sensing
- No External Sense Resistor Required
- Hiccup Mode Current Limit Protection
- Adjustable, Fixed 1.9V, 2.5V, 2.8V and 3.3V Output
- All N-Channel MOSFET Synchronous Driver
- Excellent Output Regulation: ±2% over Line, Load and Temperature Variations
- High Efficiency: Over 95% Possible
- Fast Transient Response
- Fixed 300kHz Frequency Operation
- Internal Soft-Start Circuit
- Quiescent Current: 1mA; 45µA in Shutdown
The LTC1530 is a high power synchronous switching regulator controller optimized for 5V to 1.3V-3.5V output applications. Its synchronous switching architecture drives two external N-channel MOSFET devices to provide high efficiency. The LTC1530 contains a precision trimmed reference and feedback system that provides worst-case output voltage regulation of ±2% over temperature, load current and line voltage shifts. Current limit circuitry senses the output current through the on-resistance of the topside N-channel MOSFET, providing an adjustable current limit without requiring an external low value sense resistor.
The LTC1530 includes a fixed frequency PWM oscillator that free runs at 300kHz, providing greater than 90% efficiency in converter designs from 1A to 20A of output current. Shutdown mode drops the LTC1530 supply current to 45µA.
The LTC1530 is specified for commercial and industrial temperature ranges and is available in the S0-8 package.
Applications
- Power Supply for Pentium® II, AMD-K6®-2, SPARC, ALPHA and PA-RISC Microprocessors
- High Power 5V to 1.3V-3.5V Regulators
Documentation
Data Sheet 1
User Guide 1
Application Note 2
Technical Articles 1
Spec Notice 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC1530CS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530CS8-1.9#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530CS8-2.5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530CS8-2.5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530CS8-2.8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530CS8-3.3#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530CS8-3.3#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530IS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530IS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530IS8-1.9#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530IS8-1.9#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530IS8-2.8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530IS8-2.8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530IS8-3.3#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1530IS8-3.3#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Dec 14, 2023 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LTC1530CS8#PBF | PRODUCTION | |
| LTC1530CS8#TRPBF | PRODUCTION | |
| LTC1530CS8-1.9#PBF | PRODUCTION | |
| LTC1530CS8-2.5#PBF | PRODUCTION | |
| LTC1530CS8-2.5#TRPBF | PRODUCTION | |
| LTC1530CS8-2.8#PBF | PRODUCTION | |
| LTC1530CS8-3.3#PBF | PRODUCTION | |
| LTC1530CS8-3.3#TRPBF | PRODUCTION | |
| LTC1530IS8#PBF | PRODUCTION | |
| LTC1530IS8#TRPBF | PRODUCTION | |
| LTC1530IS8-1.9#PBF | PRODUCTION | |
| LTC1530IS8-1.9#TRPBF | PRODUCTION | |
| LTC1530IS8-2.8#PBF | PRODUCTION | |
| LTC1530IS8-2.8#TRPBF | PRODUCTION | |
| LTC1530IS8-3.3#PBF | PRODUCTION | |
| LTC1530IS8-3.3#TRPBF | PRODUCTION | |
|
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LTC1530CS8#PBF | PRODUCTION | |
| LTC1530CS8#TRPBF | PRODUCTION | |
| LTC1530CS8-1.9#PBF | PRODUCTION | |
| LTC1530CS8-2.5#PBF | PRODUCTION | |
| LTC1530CS8-2.5#TRPBF | PRODUCTION | |
| LTC1530CS8-2.8#PBF | PRODUCTION | |
| LTC1530CS8-3.3#PBF | PRODUCTION | |
| LTC1530CS8-3.3#TRPBF | PRODUCTION | |
| LTC1530IS8#PBF | PRODUCTION | |
| LTC1530IS8#TRPBF | PRODUCTION | |
| LTC1530IS8-1.9#PBF | PRODUCTION | |
| LTC1530IS8-1.9#TRPBF | PRODUCTION | |
| LTC1530IS8-2.8#PBF | PRODUCTION | |
| LTC1530IS8-2.8#TRPBF | PRODUCTION | |
| LTC1530IS8-3.3#PBF | PRODUCTION | |
| LTC1530IS8-3.3#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- LTC1530
- LTC1530-1.9
- LTC1530-2.5
- LTC1530-2.8
- LTC1530-3.3
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LTC1530CS8 | High Efficiency Boost Regulator, 3.3VIN, 5VOUT @ 5A
Resources
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