LTC3834-1
PRODUCTION30μA IQ Synchronous Step-Down Controller
- Part Models
- 8
- 1ku List Price
- Starting From $5.59
Overview
- Wide Output Voltage Range: 0.8V VOUT 10V
- Low Operating IQ: 30μA
- OPTI-LOOP® Compensation Minimizes COUT
- ±1% Output Voltage Accuracy
- Wide VIN Range: 4V to 36V
- Phase-Lockable Fixed Frequency 140kHz to 650kHz
- Dual N-Channel MOSFET Synchronous Drive
- Very Low Dropout Operation: 99% Duty Cycle
- Adjustable Output Voltage Soft-Start or Tracking
- Output Current Foldback Limiting
- Output Overvoltage Protection
- Low Shutdown IQ: 4μA
- Selectable Continuous, Pulse-Skipping or
- Burst Mode® Operation at Light Loads
- Small 16-Lead Narrow SSOP or 5mm × 3mm DFN Package
The LTC3834-1 is a high performance step-down switching regulator controller that drives an all N-channel synchronous power MOSFET stage. A constant-frequency current mode architecture allows a phase-lockable frequency of up to 650kHz.
The 30μA no-load quiescent current extends operating life in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3834-1 features a precision 0.8V reference . The 4V to 36V input supply range encompasses a wide range of battery chemistries.
The TRACK/SS pin ramps the output voltage during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions. An enhanced feature set part (LTC3834) is available.
| PHASMD | EXTVCC | PGOOD | PACKAGES | |
| LTC3834 | Yes | Yes | Yes | FE20/4mm × 5mm QFN |
| LTC3834-1 | No | No | No | GN16/3mm × 5mm DFN |
Applications
- Automotive Systems
- Telecom Systems
- Battery-Operated Digital Devices
- Distributed DC Power Systems
Documentation
Data Sheet 1
User Guide 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 |
|---|---|---|---|
| LTC3834EDHC-1#PBF | 16-Lead DFN (5mm x 3mm w/ EP) | ||
| LTC3834EDHC-1#TRPBF | 16-Lead DFN (5mm x 3mm w/ EP) | ||
| LTC3834EGN-1#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3834EGN-1#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3834IDHC-1#PBF | 16-Lead DFN (5mm x 3mm w/ EP) | ||
| LTC3834IDHC-1#TRPBF | 16-Lead DFN (5mm x 3mm w/ EP) | ||
| LTC3834IGN-1#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC3834IGN-1#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 3, 2024 - 24_0235 (QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking |
||
| LTC3834EGN-1#PBF | PRODUCTION | |
| LTC3834EGN-1#TRPBF | PRODUCTION | |
| LTC3834IGN-1#PBF | PRODUCTION | |
| LTC3834IGN-1#TRPBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0235 Epoxy Change from Henkel 8290 to 8290A for GN Package |
||
| LTC3834EGN-1#PBF | PRODUCTION | |
| LTC3834EGN-1#TRPBF | PRODUCTION | |
| LTC3834IGN-1#PBF | PRODUCTION | |
| LTC3834IGN-1#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0066 Laser Top Mark for 16QSOP Assembled in ADPG [PNG] |
||
| LTC3834EGN-1#PBF | PRODUCTION | |
| LTC3834EGN-1#TRPBF | PRODUCTION | |
| LTC3834IGN-1#PBF | PRODUCTION | |
| LTC3834IGN-1#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
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Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC3834
- LTC3834-1
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
LTC3834EGN-1 Demo Board | 30uA Iq, VIN: 4.5V-32V, VOUT: 3.3V/5A
Resources
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