Datasheet SC197ULTRT - Semtech Даташит ИС, DC-DC CONV, 3.5 МГц, MLPQ-18 — Даташит

Купить SC197ULTRT на РадиоЛоцман.Цены — от 26 до 349 ₽ 24 предложений от 12 поставщиков Преобразователь DC/DC, SEMTECH SC197ULTRT DC-DC Switching Regulator, Buck, 2 Output, 2.9V to 5.5V in, 3.3V/500mA out, 4.2MHz, MLPQ-18
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Подробное описание

Производитель: Semtech

Описание: ИС, DC-DC CONV, 3.5 МГц, MLPQ-18

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Краткое содержание документа:
SC197
3.5MHz, 500mA Synchronous Dual Step-Down DC-DC Regulator
POWER MANAGEMENT Features
Description
The SC197 contains two identical high efficiency 500mA step-down regulators designed for use in batterypowered applications.

Each regulator includes 15 programmable output voltage settings that can be selected using the four control pins, eliminating the need for external feedback resistors. The output voltage can be fixed to a single setting or dynamically switched between different levels. Pulling all four control pins low disables the output. The SC197 operates at a fixed 3.5MHz switching frequency in normal PWM (Pulse-Width Modulation) mode. A variable frequency PSAVE (Power Save) mode is used to optimize efficiency at light loads for each output setting. Built-in hysteresis prevents chattering between the two modes. The SC197 provides several protection features to safeguard the device under stressed conditions. These include short circuit protection, over-tempe

Спецификации:

• Входное напряжение минимальное: 5.5 В
• Количество выходов: 1
• Выходное напряжение: 3.3 В
• Выходной ток: 500 мА
• Количество выводов: 18
• Рабочий диапазон температрур: -40°C ... +85°C
• Switching Frequency Max: 3.5 МГц