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MAX15031 Datasheet

Part NameDescriptionManufacturer
MAX15031 80V, 300mW Boost Converter and Current Monitor for APD Bias Applications MaximIC
Maxim Integrated MaximIC
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General Description
The MAX15031 consists of a constant-frequency pulse width modulating (PWM) step-up DC-DC converter with an internal switch and a high-side current monitor with high-speed adjustable current limiting. This device can generate output voltages up to 76V and provides current monitoring up to 4mA (up to 300mW). The MAX15031 can be used for a wide variety of applications such as avalanche photodiode biasing, PIN biasing, or varactor biasing, and LCD displays. The MAX15031 operates from 2.7V to 11V.

Features
♦ Input Voltage Range
   +2.7V to +5.5V (Using Internal Charge Pump) or
   +5.5V to +11V
♦ Wide Output-Voltage Range from (VIN + 1V) to 76V
♦ Internal 1Ω (typ) 80V Switch
♦ 300mW Boost Converter Output Power
♦ Accurate ±10% (500nA to 1mA) and ±3.5% (1mA to 4mA) High-Side Current Monitor
♦ Resistor-Adjustable Ultra-Fast APD Current Limit (1µs Response Time)
♦ Open-Drain Current-Limit Indicator Flag
♦ 400kHz Fixed Switching Frequency
♦ Constant PWM Frequency Provides Easy Filtering in Low-Noise Applications
♦ Internal Soft-Start
♦ 2µA (max) Shutdown Current
♦ -40°C to +125°C Temperature Range
♦ Small Thermally Enhanced, 4mm x 4mm, 16-Pin TQFN Package

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