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Overview
| Topology | Buck Converter |
| Input voltage | 23-60 V |
| Switching frequency | 200-2200 kHz |
| Output 1 | 12 V / 0.1 A |
Description
The LT®8618 is a compact, high speed synchronous monolithic step-down switching regulator that delivers up to 100mA with high efficiency at constant switching frequency, even up to 2.2MHz. It accepts a wide input voltage range up to 65V (transients only, 60V for continuous operation), and consumes only 2.5μA of quiescent current.
Features
- High Efficiency Synchronous Operation
90% Efficiency at 30mA, 12VIN to 3.3VOUT
- Ultralow Quiescent Current Burst Mode® Operation
- < 2.5μA IQ Regulating 48VIN to 3.3VOUT
- Output Ripple < 10mVP-P
- 3.4V to 60V Input Operation Range (65V Max)
- Fast Minimum Switch-On Time: 35ns
- Adjustable Switching Frequency: 200kHz to 2.2MHz
- Fixed 3.3V Output Voltage Version
- Allows Tiny Inductors
- Accurate 1V Enable Pin Threshold
- Internal Compensation
- Output Soft-Start and Tracking
- Small 10-Lead 3mm . 2mm DFN
- AEC-Q100 Qualification in Progress
Typical applications
- Industrial Sensors, Industrial Internet of Things, Flow Meters
- 4mA to 20mA Current Loops, Automotive Housekeeping Supplies
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LQS SMT Power Inductor, 220 µH, 0.25 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | Inductance220 µH | Rated Current0.25 A | Saturation Current0.39 A | DC Resistance3450 mΩ | Self Resonant Frequency5.3 MHz |