Analog Devices Inc. LT8612同步降壓穩壓器
Linear Technology/Analog Devices LT8612 Synchronous Step-Down Regulators are compact, high-efficiency, high-speed synchronous monolithic step-down switching regulators. The LT8612 consume only 3μA of quiescent current and include top and bottom power switches with all necessary circuitry. This minimizes the need for external components. A low ripple Burst Mode operation enables high efficiency down to very low output currents while keeping the output ripple below 10mVP-P.
特點
- 3.4V to 42V wide input voltage range
- 3μA IQ regulating 12VIN to 3.3VOUT ultralow quiescent current Burst Mode® operation
- <10mVP-P output ripple
- 95% efficiency at 3A, 5VOUT from 12VIN
- 94% efficiency at 3A, 3.3VOUT from 12VIN
- 40ns fast minimum switch-on time
- 250mV at 3A low dropout under all conditions
- Allows use of small inductors
- Safely tolerates inductor saturation in overload conditions
- 200kHz to 2.2MHz adjustable and synchronizable
- Current mode operation
- Accurate 1V enable pin threshold
- Internal compensation
- Output soft-start and tracking
- Small thermally enhanced 3mm x 6mm 28-lead QFN package
應用
- Automotive and industrial supplies
- General-purpose step-down
- GSM power supplies
Typical Application
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發佈日期: 2017-06-01
| 更新日期: 2025-01-28