Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SO-8
NRND = Not Recommended for New Design
1A ULDO Regulator with ENABLE
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The AP2318A is a series of ultra low dropout regulators optimized for low voltage applications where transient response and minimum input voltage are critical. The AP2318A provides current limit and thermal shutdown function. Its circuit includes a trimmed bandgap reference to assure output voltage accuracy to be within ±1.5%. On-chip thermal shutdown provides protection against any combination of overload and ambient temperatures that would cause excessive junction temperatures. The AP2318A has adjustable version, which can set the output voltage through two external resistors.
· Wide Operating Voltage Range: 2.5V to 12V · Output Voltage Accuracy: ±1.5% · On-chip Thermal Shutdown · ESD Rating: 3000V (Human Body Model) 600V (Machine Model) · Operation Junction Temperature: -40C to 125C
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Accuracy 25C |
1.50% |
|---|---|
Adjustable VFB (V) |
1.25 |
Channels |
1 |
Compliance (Only Automotive Supports PPAP) |
Standard |
Enable Active |
H |
Features |
High current |
IOUT |
1 |
Iout (A) |
1 |
IQ (mA) |
250 |
Noise uV RMS 10-100 kHz |
396 |
Output Discharge |
no |
Output options |
Adjustable |
PSRR |
65 |
PSRR (dB) 1kHz |
65 |
VCTL Function |
no |
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage |
0.5 |
Vin (Max) (V) |
13.2 |
Vin (Min) (V) |
2.5 |
VOUT |
ADJ(1.25) |
Vout (max) |
13.2 |
Vout (min) |
1.25 |
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A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
| PCN # | Issue Date | Implementation Date | Subject |
|---|---|---|---|
| PCN-2770 | 2025-10-30 | 2025-10-30 | Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products |
| PCN-2492 | 2020-11-04 | 2021-05-04 | Device End of Life (EOL) |
