The NPS7601 is a compact, single-channel, regulated forward-drop load switch with always-on, true reverse current blocking capabilities. It provides efficient switching between power rails, minimizing power loss and enabling precise load control.
The NPS7601 operates across an input voltage range of 1.5 V to 5.5 V, and supports up to 1.5 A of continuous current. An active-high enable (EN) input controls its operation, allowing for isolation of the load by blocking current in both directions when the pin is held low. When EN is asserted high and the input voltage exceeds the output, the NPS7601 turns on in a controlled manner, managing inrush current to prevent voltage droop on the power source.
To achieve fast-acting, true reverse current blocking with minimal transient reverse current, the device utilizes a regulated forward voltage scheme. This active control method overcomes the limitations of common IN-to-OUT voltage comparator-based solutions, which often require hundreds of milliamps before activation.
The NPS7601 is suitable for various applications, including:
Power supply sequencing
Power supply multiplexing
Power supply OR-ing
Parallel operation for high-current loads
NPS7601 is offered in a compact WLCSP4 (SOT8113) package and is qualified for operation over an ambient temperature range of -40 °C to 125 °C.
Features and benefits
Input voltage range: 1.5 V to 5.5 V
Maximum continuous current: 1.5 A
Low quiescent current (IQ): 600 nA (typ)
Low shutdown current (ISD): 120 nA (typ)
Reverse leakage current: -220 nA (out of the IN pin)
True reverse current blocking
VIN ≥ 1.5 V (with EN is HIGH and VOUT ≥ VIN)
VIN = 0 V (when VOUT ≥ VIN)
Controlled rise time at start-up
Over-temperature protection
Short-circuit protection
SOT8113, 4-pin wafer-level chip-scale package
Ambient temperature range (Ta): -40 °C to +125 °C
Applications
Consumer electronics
Wearables
IoT devices
Battery powered and battery backup systems
USB powered devices
Figure 1. Simplified application
The NPS7601 is a compact, single-channel, regulated forward-drop load switch with always-on, true reverse current blocking capabilities. It provides efficient switching between power rails, minimizing power loss and enabling precise load control.
The NPS7601 operates across an input voltage range of 1.5 V to 5.5 V, and supports up to 1.5 A of continuous current. An active-high enable (EN) input controls its operation, allowing for isolation of the load by blocking current in both directions when the pin is held low. When EN is asserted high and the input voltage exceeds the output, the NPS7601 turns on in a controlled manner, managing inrush current to prevent voltage droop on the power source.
To achieve fast-acting, true reverse current blocking with minimal transient reverse current, the device utilizes a regulated forward voltage scheme. This active control method overcomes the limitations of common IN-to-OUT voltage comparator-based solutions, which often require hundreds of milliamps before activation.
The NPS7601 is suitable for various applications, including:
Power supply sequencing
Power supply multiplexing
Power supply OR-ing
Parallel operation for high-current loads
NPS7601 is offered in a compact WLCSP4 (SOT8113) package and is qualified for operation over an ambient temperature range of -40 °C to 125 °C.
Features and benefits
- Input voltage range: 1.5 V to 5.5 V
- Maximum continuous current: 1.5 A
- Low quiescent current (IQ): 600 nA (typ)
- Low shutdown current (ISD): 120 nA (typ)
- Reverse leakage current: -220 nA (out of the IN pin)
- True reverse current blocking
- VIN ≥ 1.5 V (with EN is HIGH and VOUT ≥ VIN)
- VIN = 0 V (when VOUT ≥ VIN)
- Controlled rise time at start-up
- Over-temperature protection
- Short-circuit protection
- SOT8113, 4-pin wafer-level chip-scale package
- Ambient temperature range (Ta): -40 °C to +125 °C
Applications
- Consumer electronics
- Wearables
- IoT devices
- Battery powered and battery backup systems
- USB powered devices
Figure 1. Simplified application
