Nexperia NEX92x30-Q100 Dual-Channel Antenna LDO Regulators
Nexperia NEX92x30-Q100 Dual-Channel Antenna Low-Dropout (LDO) Regulators are high-voltage devices with current sensing, designed to operate over a wide voltage range from 4V to 40V (45V load-dump protection). The Nexperia NEX92x30-Q100 regulators provide power for low-noise amplifiers with an active antenna via a coaxial cable, delivering 300mA per channel. The devices provide an adjustable output voltage of 1.5V to 20V per channel.
The NEX92x30-Q100 regulators provide diagnostics via current-sensing and error pins. To monitor the load current, a high-side current-sense circuit provides a proportional analog output to the sensed load current. Accurate current sensing enables detection of open, normal, and short-circuit conditions without requiring additional calibration. Current-sensing multiplexing between channels conserves analog-to-digital converter (ADC) resources. Each channel also implements adjustable current limits with an external resistor.
These Nexperia devices integrate short-circuit, overcurrent, thermal shutdown, short-to-battery, and reverse-current protections. Each channel features internal inductive clamp protection on the output during inductive switch-off. Packaged in an HTSSOP16 package, the regulators can operate at ambient temperatures from -40°C to +125°C and junction temperatures from -40°C to +150°C.
Features
- AEC-Q100 qualified for automotive applications
- -40°C to +125°C ambient temperature range
- -40°C to +150°C junction temperature range
- 4V to 40V input voltage range (45V transient)
- 1.5V to 20V adjustable output voltage range
- 300mA maximum output current per channel
- High accuracy current sensing to detect antenna/MIC open conditions at low current
- Adjustable current limit by an external resistor
- High power 80dB typical supply ripple rejection (PSRR) at 100Hz
- Low 500mV typical dropout voltage at 300mA (VOUT = 8.5V)
- Stable with a wide range of ceramic output-stability capacitance
- 0.001Ω to 5Ω ESR
- 2.2µF to 220µF output capacitance range
- Various integrated fault protections
- Thermal shutdown
- Short-circuit and over-current protection
- Reverse-current protection
- Output short-to-battery protection
- Output inductive load clamp
- Multiplexing current sensing between channels and devices
- Ability to identify all faults with current sensing
- 5.0mm x 4.4mm x 1.2mm, 0.65mm pitch, 16-pin HTSSOP enhanced thermal pad package
- Variants
- Dual channel latch version - NEX92730DPCD-Q100
- Dual channel auto-retry version - NEX92830DPCD-Q100
Applications
- Infotainment active-antenna power supplies
- Automotive MIC power supplies
- Camera power supplies
- High-side power switches for small current applications
Specifications
- 4V to 40V operating input voltage range
- 0V to 40V operating enable voltage range
- Operating output voltage ranges
- 1.5V to 20V in normal mode
- 2V to 36V in switch mode
- 0V to 5.3V operating common collector range
- 0V to 5.3V operating sense voltage range
- 0V to 5.3V operating limit voltage range
- 0V to 5.3V operating sense control and fault voltage range
- 0V to 5.3V operating feedback voltage range
- 2.2µF to 220µF operating output capacitor stability range
- 0.001Ω to 5Ω operating output capacitor ESR requirements range
- Thermal characteristics
- 41.2°C/W junction-to-ambient thermal resistance
- 25.0°C/W junction-to-case (top) thermal resistance
- 24.5°C/W junction-to-board thermal resistance
- 3.4°C/W junction-to-top characterization parameter
- ESD ratings
- ±2000V HBM per ANSI/ESDA/JEDEC JS-001 class 2
- ±1000V CDM per ANSI/ESDA/JEDEC JS-002 class C3
Typical Application
Functional Block Diagram
Related Board
Nexperia NEVB-NEX92830DPCUL Evaluation Board
Designed to evaluate the NEX92830DPC 300mA, dual-channel antenna LDO regulator with current sensing.