NJW4109 Series
45 V, Io = 500 mA LDO WITH POWER-GOOD
Download Datasheet
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Description
The NJW4109 is a 45 V, IO = 500 mA low dropout regulator with power-good. Power-good outputs whether the output voltage is within the normal range as a flag and notifies the MCU of the abnormal state. This device achieves fast transient response and offers stable output voltage even at line or load fluctuations. The NJW4109 provides outstanding high output voltage accuracy that guaranteed ±1.0% under the conditions of VIN = VO + 1 V to 40 V, IO = 0mA to 500 mA. Moreover, wide operating voltage, wide operating temperature, and power-good output make the NJW4109 ideal for automotive equipment or applications that require high reliability.
Applications
- Car infotainment
- Active antenna power supplies
- Automotive camera power supplies
- External power supplies for industrial equipment
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Spec
Consumer Input Voltage Range 4 V to 40 V (45 V) Operating Temperature Range -40°C to 125°C (150°C) Supply Current Typ. 90 µA Output Voltage Accuracy ±1% Output Current 500 mA Ripple Rejection Typ. 50 dB Package TO-252-5-L5 Note Power-good output
ON/OFF control
Ceramic capacitor compatible
Undervoltage lockout (UVLO)
Thermal shutdown
Overcurrent protectionProtections / Functions
TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver PGOOD 
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Technical
Documents -
Quality &
PackagesProduct Name Compatibility Package Marking Reliability NJW4109DL5-08A TO-252-5-L5 - NJW-1-s-fr NJW4109DL5-08B TO-252-5-L5 - NJW-1-s-fr - Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
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Sample / Buy
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Buy Online
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Buy, Request for Samples, Request for Information Materials
Authorized Distributors
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
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Download Datasheet
Functional Description
| TSD | Thermal Shutdown Function |
|---|---|
| Reverse Current Protection | Reverse Current Protection |
| Current Limit | Overcurrent Protection |
| ISC | Short Current Protection |
| Inrush Current Limit | Inrush Current Protection |
| Constant Slope | Constant Slope Function |
| ECO mode | ECO Function |
| Auto Discharge | Auto Discharge Function |
| External Driver | External Output Driver Transistor |