LT3029
LT3029
RECOMMENDED FOR NEW DESIGNSDual 500mA/500mA Low Dropout, Low Noise, Micropower Linear Regulator
- Part Models
- 14
- 1ku List Price
- Starting From $4.37
Viewing:
Overview
- Output Current: 500mA per Channel
- Low Dropout Voltage: 300mV
- Low Noise: 20μVRMS (10Hz to 100kHz)
- Low Quiescent Current: 55μA per Channel
- Wide Input Voltage Range: 1.8V to 20V (Common or Independent Input Supply)
- Adjustable Output: 1.215V Reference Voltage
- Very Low Quiescent Current in Shutdown: <1μA per Channel
- Stable with 3.3μF Minimum Output Capacitor
- Stable with Ceramic, Tantalum or Aluminum Electrolytic Capacitors
- Reverse-Battery and Reverse Output-to-Input Protection
- Current Limit with Foldback and Thermal Shutdown
- Tracking/Sequencing Capability: Compatible with LTC292X Power Supply Tracking ICs
- Thermally Enhanced 16-Lead MSOP and 16-Lead (4mm × 3mm) DFN Packages
The LT3029 is a dual, micropower, low noise, low dropout linear regulator. The device operates either with a common input supply or independent input supplies for each channel, over an input voltage range of 1.8V to 20V. Each output supplies up to 500mA of output current with a typical dropout voltage of 300mV. Quiescent current is well controlled in dropout. With an external 10nF bypass capacitor, output noise is only 20μVRMS over a 10Hz to 100kHz bandwidth. Designed for use in battery-powered systems, the low 55μA quiescent current per channel makes it an ideal choice. In shutdown, quiescent current drops to less than 1μA. Shutdown control is independent for each channel, allowing for flexible power management.
The LT3029 optimizes stability and transient response with low ESR ceramic output capacitors, requiring a minimum of only 3.3μF. The regulator does not require the addition of ESR, as is common with other regulators.
Internal circuitry provides reverse-battery protection, reverse-current protection, current limiting with foldback and thermal shutdown. The device is available as an adjustable output voltage device with a 1.215V reference voltage. The LT3029 is offered in the thermally enhanced 16-lead MSOP and 16-lead, low profile (4mm × 3mm × 0.75mm) DFN packages.
Applications
- General Purpose Linear Regulator
- Battery-Powered Systems
- Microprocessor Core/Logic Supplies
- Post Regulator for Switching Supplies
- Tracking/Sequencing Power Supplies
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Brochure 2
Product Selection Guide 1
Analog Dialogue 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 |
|---|---|---|---|
| LT3029EDE#PBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LT3029EDE#TRPBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LT3029EMSE#PBF | 16-Lead MSOP w/ EP | ||
| LT3029EMSE#TRPBF | 16-Lead MSOP w/ EP | ||
| LT3029HDE#PBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LT3029HDE#TRPBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LT3029HMSE#PBF | 16-Lead MSOP w/ EP | ||
| LT3029HMSE#TRPBF | 16-Lead MSOP w/ EP | ||
| LT3029IDE#PBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LT3029IDE#TRPBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LT3029IMSE#PBF | 16-Lead MSOP w/ EP | ||
| LT3029IMSE#TRPBF | 16-Lead MSOP w/ EP | ||
| LT3029MPMSE#PBF | 16-Lead MSOP w/ EP | ||
| LT3029MPMSE#TRPBF | 16-Lead MSOP w/ EP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
||
| LT3029EMSE#PBF | PRODUCTION | |
| LT3029EMSE#TRPBF | PRODUCTION | |
| LT3029HMSE#PBF | PRODUCTION | |
| LT3029HMSE#TRPBF | PRODUCTION | |
| LT3029IMSE#PBF | PRODUCTION | |
| LT3029IMSE#TRPBF | PRODUCTION | |
| LT3029MPMSE#PBF | PRODUCTION | |
| LT3029MPMSE#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0132 Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LT3029EMSE#PBF | PRODUCTION | |
| LT3029EMSE#TRPBF | PRODUCTION | |
| LT3029HMSE#PBF | PRODUCTION | |
| LT3029HMSE#TRPBF | PRODUCTION | |
| LT3029IMSE#PBF | PRODUCTION | |
| LT3029IMSE#TRPBF | PRODUCTION | |
| LT3029MPMSE#PBF | PRODUCTION | |
| LT3029MPMSE#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| LDO Linear Regulators 1 | ||
| LT3030 | RECOMMENDED FOR NEW DESIGNS | Dual 750mA/250mA Low Dropout, Low Noise, Micropower Linear Regulator |
| Power System Management (PSM) & Sequencers 1 | ||
| LTC2977 | RECOMMENDED FOR NEW DESIGNS | 8-Channel PMBus Power System Manager Featuring Accurate Output Voltage Measurement |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT3029
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
LT3029EDE Demo Board | Dual Input, Dual Low Dropout, Low Noise, Micropower Linear Regulator, 2.3V ≤ VIN ≤ 20V, VOUT1/VOUT2 = 1.5V/1.8V/2.5V/3.3V/5V/Adjustable @ 500mA
Resources
Reference Designs
Part Used
