Nisshinbo NR1620 Ultra-Low Supply Current Voltage Regulators
Nisshinbo NR1620 Ultra-Low Supply Current Voltage Regulators are manufactured using a CMOS process with an output current of 150mA. The Nisshinbo NR1620 switching voltage regulators support a VIN input voltage as low as 0.6V and an output voltage as low as 0.4V. The devices can be used as a power supply for the core of a microcontroller, various interfaces, and more. An ultra-low quiescent current of 0.4μA makes the NR1620 suitable for systems that require low consumption and long-time operation, such as battery-driven systems. NMOS power transistors are driven by a bias power input pin (VBIAS) independent of the power input pin (VIN) to achieve highly efficient regulation.
Features
- 0.4μA typical quiescent current
- ±9.9mV output voltage accuracy at +25°C
- Maximum input voltage range
- 2.4V to 5.5V (6.5V) for VBIAS
- 0.6V to VBIAS (6.5V) for VIN
- 0.4V to 1.2V output voltage range in 0.1V steps
- Ripple rejection
- 90dB typical at f = 1kHz, ripple in VIN
- 60dB typical at f = 100kHz, ripple in VIN
- 110mA typical short-circuit current limit
- 150mA output current
- Selectable discharge function
- 150mV typical dropout voltage (IOUT=150mA, VSET=1.0V, VBIAS=VSET+1.4V)
- CIN, CBIAS, and COUT (2.2μF to 100μF) supported ceramic capacitors
- Automatic mode switching (fast mode and low power mode)
- -40°C to +85°C operating temperature range
- Package options
- 1.2mm x 1.2mm x 0.4mm DFN1212-6-GK
- 2.9mm x 2.8mm x 1.1mm SOT-23-5-DC
- Halogen-free and RoHS-compliant
Applications
- Wearable devices such as smartwatches, smart bands, and health monitoring
- Lithium-ion battery and coin cell battery equipment
- Low-power CPUs, memory, sensor devices, and energy harvesting
Typical Application Circuit
Block Diagrams
Published: 2024-07-16
| Updated: 2024-07-31