NEX91207-Q100
Automotive 70 mA, 40 V tracking LDO with 5 mV tracking tolerance
The NEX91207-Q100 is a Low-Dropout (LDO) voltage-tracking regulator with a precise tracking tolerance of 5 mV (max) and excellent load and line transient responses. It is specifically designed to power off-board sensors in automotive applications such as power train systems, safety, and Body Control Modules (BCMs). The device supports a wide input voltage range from 4 V to 40 V (up to 45 V transient) to withstand cold-crank and load-dump transient conditions.
The device output tracks the reference voltage applied to the ADJ/EN pin with an accuracy of ±5 mV over the specified temperature range. The high tracking accuracy ensures a precise power supply for off-board sensors and modules, improving the performance of radiometric sensors such as pressure and position sensors.
The device switches to standby mode by pulling down the ADJ/EN pin, which enables an ultra-low shutdown current of 0.75 µA typical to extend battery life. The device integrates protection features such as battery reverse polarity protection (-42 V), output reverse current protection, output short-to-battery and ground protection, current limit, and thermal shutdown. These protections guard against the high risk of cable failures in an off-board power system.
The device operates across a temperature range from -40 °C to 125 °C ambient and -40 °C to 150 °C junction. It is available in two package options with different thermal resistance, including SOT8105-1 (SOT23-5S) and SOT8104-1 (SOT23-5).
Features and benefits
- Automotive product qualification in accordance with AEC-Q100 (Grade 1)
- Temperature grade 1 (Tamb): -40 °C to 125 °C
- Junction temperature (Tj): -40 °C to 150 °C
- Input voltage range: 4 V to 40 V
- Absolute maximum input range: -42 V to +45 V
- Wide output voltage range: 2 V to 40 V
- Absolute maximum output range: -5 V to +45 V
- Tight output tracking tolerance: ±5 mV
- Maximum output current: 70 mA
- Low dropout voltage:
- 215 mV typical at 70 mA (VOUT = 5 V)
- Low quiescent current (IQ):
- 40 µA typical quiescent current at light loads
- 0.75 µA typical shut-down current
- Active output discharge with a typical discharge current of 700 µA
- Stable with a wide range of ceramic output-stability cap:
- ESR from 0.001 Ω to 3 Ω; output capacitor from 1 µF to 220 µF
- Integrated various fault protections:
- Reverse polarity protected input
- Reverse current protection
- Thermal shutdown
- Short-circuit to ground and battery protection
- Over-current protection
- Package options:
- SOT8105-1 (SOT23-5S (NSOT23-5)): RθJA= 131.7 °C/W
- SOT8104-1 (SOT23-5): RθJA= 175.6 °C/W
Applications
Supply for off-board sensors
High precision voltage tracking
Body Control Modules (BCMs)
Power switch for off-board loads
| Part number | Package | Body size (nom) |
|---|---|---|
NEX91207DE-Q100 |
SOT23-5S |
2.93 mm x 1.50 mm |
NEX91207DF-Q100 |
SOT23-5 |
2.93 mm x 1.63 mm |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| NEX91207DE-Q100 | NEX91207DE-Q100Z (935692149328) |
Active | N7E |
SOT23-5S (SOT8105-1) |
SOT8105-1 | SOT8105-1_328 | |
| NEX91207DF-Q100 | NEX91207DF-Q100Z (935692162342) |
Active | N7E |
SOT23-5 (SOT8104-1) |
SOT8104-1 | SOT8104-1_342 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| NEX91207DE-Q100 | NEX91207DE-Q100Z | NEX91207DE-Q100 |
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| NEX91207DF-Q100 | NEX91207DF-Q100Z | NEX91207DF-Q100 |
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Documentation (4)
| File name | Title | Type | Date |
|---|---|---|---|
| NEX91207_Q100 | Automotive 70 mA, 40 V tracking LDO with 5 mV tracking tolerance | Data sheet | 2025-02-13 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| SOT8105-1 | SOT23-5S (NSOT23-5): 5 pins; 2.926 mm x 1.50 mm x 1.10 mm body | Package information | 2025-01-09 |
| SOT8104-1 | SOT23-5: 5 pins; 0.95 mm pitch; 2.926 mm x 1.626 mm x 1.25 mm body | Package information | 2025-01-09 |
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