MAX1615EUKT High-Voltage Micro-Power LDO Regulator (4-28V, 30mA, SOT23-5)

Power your always-on logic circuits safely directly from a high-voltage battery pack with the MAX1615EUKT micro-power linear regulator. When designing smart Battery Management Systems (BMS), remote drone trackers, or anti-spark pre-charge circuits, you need a voltage regulator that can withstand the full voltage of a 6S LiPo (up to 25.2V) without draining the battery over weeks of standby. The MAX1615 is purpose-built for this exact scenario.

Operating on a wide input range of 4V to 28V, it draws an incredibly low quiescent current of just 15 µA. While its 30mA maximum output current is intentionally small, it is more than enough to keep a sleeping microcontroller, a Real-Time Clock (RTC), or battery monitoring logic alive. A standout feature of the MAX1615 is its pin-selectable output, allowing you to easily choose between a fixed 3.3V or 5.0V output without needing an external resistor divider. Housed in a tiny SOT23-5 package, it is the ultimate "keep-alive" power solution for professional DIY electronics.

Key Features:

• High Input Voltage: Safely accepts up to 28V, making it perfectly compatible with multi-cell LiPo batteries (up to 6S) directly from the main lead.

• Ultra-Low Quiescent Current: Draws merely 15 µA of standby current, preventing deep-discharge damage to batteries during long storage periods.

• Selectable Output: Features a dedicated pin to easily switch the output voltage between stable 3.3V and 5.0V logic levels.

• Micro-Power Delivery: Supplies up to 30mA of clean current, ideal for powering standby logic, sensors, and MCU sleep modes.

Specifications:

• Part Number: MAX1615EUK+T

• IC Type: Low-Dropout (LDO) Linear Regulator

• Input Voltage Range: 4.0V – 28V

• Output Voltage: 3.3V or 5.0V (Pin-Selectable)

• Output Current: 30 mA

• Quiescent Current: 15 µA

• Package Type: SOT-23-5 (SMD/SMT)