qixinwei-pcba
NCV1117DT33T5G 3.3V 1A Low-Dropout Fixed Output Positive Linear Voltage Regulator 20V Input TO-252-2
NCV1117DT33T5G Product Overview
The NCV1117DT33T5G is an automotive-grade fixed-output positive low dropout (LDO) linear voltage regulator from onsemi's NCV1117 series, housed in a TO-252-2 (DPAK) surface-mount package. It provides a fixed 3.3V output requiring no external resistors, delivering output current in excess of 1.0A with a maximum dropout voltage of only 1.2V at 800mA and supporting input voltages up to 20V. On-chip trimming adjusts the reference/output voltage to ±1.0% accuracy, and internal protection features include output current limiting, safe operating area compensation, and thermal shutdown. The NCV1117DT33T5G is AEC-Q100 qualified and PPAP capable with an operating junction temperature range of -40°C to +125°C. As a pin-compatible LM1117-3.3 replacement, it is widely used in automotive electronics, industrial control, consumer electronics, and communication equipment.
| Model | NCV1117DT33T5G |
| Series | NCV1117 |
| Device Type | Low-Dropout Fixed Output Positive Linear Voltage Regulator (LDO) |
| Output Polarity | Positive |
| Output Voltage | 3.3V (Fixed) |
| Output Current | 1.0 A (Max) |
| Input Voltage (Max) | 20 V |
| Dropout Voltage (Max) | 1.2V @ 800mA (Over Temperature) |
| PSRR | 64dB @ 120Hz |
| Quiescent Current (Iq) | 6 mA (Typical) |
| Output Voltage Accuracy | ±1.0% |
| Reference Voltage | 1.25 V |
| Output Noise | 0.003% Vout |
| Number of Outputs | 1 |
| Output Type | Fixed |
| Protections | Output Current Limiting, Safe Operating Area Compensation, Thermal Shutdown |
| Operating Temp (TA) | -40℃ ~ +125℃ |
| Package | TO-252-2 (DPAK / SC-63) |
| Mounting Type | Surface Mount |
Typical Applications
Automotive electronics 3.3V voltage regulation
Industrial control equipment power supply
Local and on-card regulation
Switching power supply post regulation
Hard drive controllers
Battery chargers
Set-top boxes, monitors, TVs and home appliance power
FAQ
Q: What are the output voltage and current?
A: Fixed 3.3V output, 1.0A maximum output current. Maximum dropout voltage is 1.2V at 800mA over temperature.
Q: Does this LDO require a minimum load?
A: No. NCV1117 series fixed voltage output devices have no minimum load requirement to maintain regulation, making them ideal for standby or light-load applications.
Q: What protection features are integrated?
A: Output current limiting, safe operating area compensation, and thermal shutdown for device and system safety under abnormal conditions.
Q: What is the PSRR?
A: 64dB at 120Hz, effectively suppressing input supply ripple effects on the output voltage.
Q: What is the difference between NCV1117DT33T5G and NCP1117DT33T5G?
A: Both share essentially identical core parameters, with the primary difference being temperature grade and qualification: NCV1117DT33T5G is automotive-grade (AEC-Q100) with -40℃ to +125℃ operating range; NCP1117DT33T5G is industrial-grade. Select based on application temperature and qualification requirements.
Why Choose QIXINWEI
Years of experience in the electronics industry. Trusted by global customers.
Massive In-Stock Inventory – Ready to ship promptly
BOM Matching Service – One-stop solution, save time
PCBA Customization – Professional engineering team creates tailor-made solutions based on your needs
Cost-Effective & Efficient – Better channel, better cost
A dedicated team makes your procurement smoother.
Contact us for BOM quotes or PCBA inquiries
- Model:
- NCV1117DT33T5G
- Series:
- NCV1117
- Device Type:
- LDO
- Output Polarity:
- Positive
- Output Voltage:
- 3.3V
- Output Current:
- 1.0 A
- Operating Temperature:
- -40°C ~ +125°C
- Package:
- TO-252-2
