Nexperia Ideal Diode NID1101

Compact, high-efficiency ideal diode that replaces traditional Schottky diodes in low-voltage power systems. Low froward voltage drop alternative while integrating both forward and true reverse current blocking.

Operates across 1.5 V to 5.5 V input range, and supports up to 1.5 A of continuous current. Well suited for applications that require minimal power loss and precise current control, such as power OR-ing, redundant supply switchover, and reverse current protection. In dual-supply configurations, it enables seamless transition between sources without the need for additional control logic.

The EN pin controls operation. When EN is low, the device blocks current in both directions. When EN is high and IN exceeds OUT, it turns on with controlled startup to limit inrush current. After startup, it maintains a very low forward voltage between IN and OUT, compared to Schottky diode.

To ensure robust system performance, the NID1101 integrates short-circuit current limiting and thermal shutdown protection. If the output voltage rises above the input, the device automatically enters a high⁠-⁠impedance state with minimal reverse leakage current, effectively preventing reverse conduction.

Power OR-ing configurations for system flexibility: 

• Two, or more, NID1101 devices
• NID1101s and conventional Schottky diodes

Compact WLCSP4 (SOT8113) package.

Key features

• Input voltage range: 1.5 V to 5.5 V
• Low forward drop voltage: V_FWD = 29 mV (typ. at 3.6 V input and 100 mA load current)
• Reverse voltage blocking always
• Low leakage current when V_OUT > V_IN
• Forward voltage blocking when disabled
• Low quiescent current
• Enhanced load transient response
• Controlled slew rate at start-up
• Over temperature protection
• Short-circuit protection
• SOT8113, 4 bumps, wafer-level chip-scale package
• Specified over T_a= -40 °C to +125 °C

Applications

• Smart wearables
• OR-ing applications
• Diode replacement
• Battery backup systems
• USB powered devices