Ultra Low Noise Positive Regulator for High Quality Digital Audio
- ULN-RD78A - Noise : Min. 0.9nV√Hz /Max. 5.4nVnV @1KHz/√Hz / PSRR: 132dB(Vs=4V~35V)
- ULN-RD78A are direct replacable for 78XX of TO-220 package.
<General Properties>
1. Trimmed to High Accuracy Reference
- 2.5V ~ 3.3V : MAX6225A(1ppm/°C, 0.02% Accuracy)
- 5V ~30V : LT1236ACS8-5(2ppm/°C, 0.05% Accuracy)
2. Buffer : OPA132
3. Ultra Noise and High PSRR & Error Amp : LT1028
4. Thin Film 0.1%/10PPM Low Noise Resistors
5. Low ESR SMD Tantalum Capacitor
6. Pin Compatible with 78xx Regulator
<Specifications>
1. Noise : Min. 0.9nV/√Hz/Max. 5.4nV/√Hz @1KHz
2. PSRR(Power Supply Ripple Rejection) : 132dB(Vs=4V to 35V)
3. Voltage Temperature Coefficient : 1 ~ 2ppm/°C
4. Short-Circuit Protected
5. Input Voltage : 7V ~ 35V
6. Output Voltage : 3.3V ~ 30V
7. Max. Current : 250mA
8. Power Rating : 800mW
9. Gold Plated PCB : Size 12.7 x 37(W x H :mm)
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<권장 입력 전압>
1) 2.5V : 6V ~ 7.5V
2) 3.3V : 7.5V~8.5V
3) 5.0V : 7.5V~8.5V
4) 8.0V : 10.5V~11.5V
5) 10V : 12.5V~13.5V
6) 12V : 14.5V~15.5V
7) 15V : 17.5V~18.5V
8) 18V : 20.5V~21.5V
9) 24V : 26.5V~27.5V
10) 30V : 32.5V~33.5V
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