Diodes Incorporated has introduced AP7347EQ, an automotive-grade low dropout (LDO) regulator that produces a regulated output with a stable output current of 500 mA, while maintaining low power consumption and excellent line- and load-transient response. This LDO is developed based on the CMOS process and is designed to achieve high output voltage accuracy of ±1%, low drain source on-resistance, high PSRR, low output noise of 60 µV (RMS) from 10 Hz to 100 kHz, and low quiescent current. It requires an input voltage of 1.7-5.5 V and provides multiple output voltage options – 1 V, 1.05 V, 1.1 V, 1.15 V, 1.2 V, 1.5 V, 1.7 V, 1.8 V, 2.2 V, 2.5 V, 2.8 V, 2.9 V, 3.0 V, 3.3 V, and 5.0 V (fixed and adjustable over the entire range).

This AEC-Q100-qualified LDO regulator includes a voltage reference, error amplifier, current-limit circuit, and an enable input to turn it on and off. With an integrated resistor network, a fixed output-voltage version and an adjustable output-voltage version can be delivered. The AP7347EQ also has a power-good indicator.

Key features and benefits of AP7347EQ

1. Low input voltage and wide input range: 1.7 V to 5.5 V 
2. Guarantee output current: 500 mA 
3. V_OUT accuracy: ±1% 
4. Ripple rejection 75 dB at 1 kHz 
5. Low output noise, 60 µV (RMS) from 10 Hz to 100 kHz 
6. Quiescent current as low as 75 µA 
7. Output voltage range: Fixed: 1.0 V to 5.0 V and Adjustable: 1.0 V to 5.0 V
8. Power-Good (PG) output for supply monitoring and for sequencing of other supplies 
9. Active output discharge 
10. Totally lead-free & fully RoHS compliant
11. Halogen and Antimony Free. “Green” device 
12. The AP7347EQ is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities.

Applications of AP7347EQ

• Infotainment power supplies
• Automotive RF supplies
• Cameras
• Automotive POL in ADAS
• Automotive wireless communication systems

Click here to learn more about AP7347EQ.