LT1076-5
PRODUCTION5V Step-Down Switching Regulator
- Part Models
- 11
- 1ku List Price
- Starting From $5.76
Overview
- Fixed 5V Output
- 2A On-Board Switch
- 100kHz Switching Frequency
- 2% Output Voltage Tolerance Over Temperature
- Greatly Improved Dynamic Behavior
- Available in Low Cost 5- and 7-Lead Packages
- Only 9.5mA Quiescent Current
- Operates Up to 60V Input
The LT1076-5 is a 2A fixed 5V output monolithic bipolar switching regulator which requires only a few external parts for normal operation. The power switch, all oscillator and control circuitry, all current limit components, and an output monitor are included on the chip. The topology is a classic positive “buck” configuration but several design innovations allow this device to be used as a positive-to-negative converter, a negative boost converter, and as a flyback converter. The switch output is specified to swing 40V below ground, allowing the LT1076-5 to drive a tapped inductor in the buck mode with output currents up to 4A.
The LT1076-5 uses a true analog multiplier in the feedback loop. This makes the device respond nearly instantaneously to input voltage fluctuations and makes loop gain independent of input voltage. As a result, dynamic behavior of the regulator is significantly improved over previous designs.
On-chip pulse by pulse current limiting makes the LT1076-5 nearly bust-proof for output overloads or shorts. The input voltage range as a buck converter is 8V to 60V, but a self-boot feature allows input voltages as low as 5V in the inverting and boost configurations.
The LT1076-5 is available in a low cost 5- and 7-lead TO-220 packages with frequency pre-set at 100kHz and current limit at 2.6A. See Application Note 44 for design details.
Applications
- 5V Output Buck Converter
- Tapped Inductor Buck Converter with 4A Output at 5V
- Positive-to-Negative Converter
Documentation
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 |
|---|---|---|---|
| LT1076CQ-5#PBF | 5-Lead DD Pak | ||
| LT1076CQ-5#TRPBF | 5-Lead DD Pak | ||
| LT1076CR-5#PBF | 7-Lead DD Pak | ||
| LT1076CR-5#TRPBF | 7-Lead DD Pak | ||
| LT1076CT-5#06PBF | 5-Lead TO-220 (Flow 06) | ||
| LT1076CT-5#PBF | 5-Lead TO-220 | ||
| LT1076CT7-5#PBF | 7-Lead TO-220 | ||
| LT1076HVCT-5#PBF | 5-Lead TO-220 | ||
| LT1076HVCT7-5#PBF | 7-Lead TO-220 | ||
| LT1076HVIT-5#PBF | 5-Lead TO-220 | ||
| LT1076IT-5#PBF | 5-Lead TO-220 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 10, 2022 - 22_0175 Laser Top Mark Conversion for DDPAK & TO220 Packages Assembled in ADPG. Country of Origin Code [MY] To Be Incorporated On Top Mark |
||
| LT1076CQ-5#PBF | PRODUCTION | |
| LT1076CQ-5#TRPBF | PRODUCTION | |
| LT1076CR-5#PBF | PRODUCTION | |
| LT1076CR-5#TRPBF | PRODUCTION | |
| LT1076CT-5#06PBF | PRODUCTION | |
| LT1076CT-5#PBF | PRODUCTION | |
| LT1076CT7-5#PBF | PRODUCTION | |
| LT1076HVCT-5#PBF | PRODUCTION | |
| LT1076HVCT7-5#PBF | PRODUCTION | |
| LT1076HVIT-5#PBF | PRODUCTION | |
| LT1076IT-5#PBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Hot Swap Controllers 1 | ||
| LT4363 | RECOMMENDED FOR NEW DESIGNS | High Voltage Surge Stopper with Current Limit |
| Power System Management (PSM) & Sequencers 1 | ||
| LTC2974 | RECOMMENDED FOR NEW DESIGNS | 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement |
| Switching Regulators & Controllers 1 | ||
| LTC3880 | RECOMMENDED FOR NEW DESIGNS | Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT1076
- LT1076-5
- LT1076HV
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.
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