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LTC7803 40 V Low Iq, 3 MHz Synchronous Step-Down Controller
Analog Devices' LTC7803 offers small solution size, low Iq, and PassThru™ operation for up to 99.9% efficiency
ADI's LTC7803 is a low IQ, high performance, 100% duty cycle synchronous step-down switching regulator controller that operates up to a 40 V input supply range. Spread spectrum frequency modulation operation helps reduce EMI peaks. The low quiescent current extends runtime in battery-powered systems when in standby mode and up to 3 MHz reduces the solution size, ideal for a broad range of applications and market segments. Other PassThru parts to consider are the LTC7801 (150 V step-down controller) and LTC7103 (105 V/2.3 A step-down converter).
Features
- PassThru operation/100% duty cycle capable
- Low operating IQ: 12 µA
- Wide input voltage range: 4.5 V to 40 V
- Output voltage up to 40 V
- Spread spectrum operation
- High frequency: 100 kHz to 3 MHz
- AEC-Q100 qualification in progress
Applications
- Automotive and transportation
- Industrial
- Military/avionics
- Telecommunications
Resources
Evaluation Board
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
 |  | DC2834A | EVAL BOARD FOR LTC7803EMSE | 9 - Immediate | $727.49 | View Details |
LTC7803 Series
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | LTC7803EMSE#PBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 160 - Immediate | $43.65 | View Details |
| | LTC7803IMSE#PBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 37 - Immediate | $46.85 | View Details |
| | LTC7803JMSE#PBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 170 - Immediate | $47.36 | View Details |
| | LTC7803HMSE#PBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 148 - Immediate | $51.46 | View Details |
| | LTC7803JMSE#WPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 626 - Immediate | $51.78 | View Details |
|  | LTC7803EUD#PBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 142 - Immediate | $43.65 | View Details |
| | LTC7803EMSE#TRPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 0 - Immediate | $17.44 | View Details |
| | LTC7803EUD#TRPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 0 - Immediate | $17.44 | View Details |
| | LTC7803IUD#PBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 169 - Immediate | $46.85 | View Details |
| | LTC7803IMSE#TRPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 0 - Immediate | $19.20 | View Details |
| | LTC7803IUD#TRPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 0 - Immediate | $19.20 | View Details |
| | LTC7803JUD#TRPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 0 - Immediate | $19.52 | View Details |
| | LTC7803JMSE#TRPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 0 - Immediate | $19.52 | View Details |
| | LTC7803JUD#PBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 96 - Immediate | $47.36 | View Details |
| | LTC7803HUD#TRPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 0 - Immediate | $21.84 | View Details |
| | LTC7803HUD#PBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 496 - Immediate | $51.46 | View Details |
| | LTC7803HMSE#TRPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 0 - Immediate | $21.84 | View Details |
| | LTC7803JMSE#WTRPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 0 - Immediate | $22.00 | View Details |
| | LTC7803JUD#WTRPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 0 - Immediate | $22.00 | View Details |
| | LTC7803JUD#WPBF | LOW IQ SYNCHRONOUS BUCK CONTROLL | 87 - Immediate | $51.78 | View Details |
Published: 2020-07-28
Denmark