6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1)
|
MIN |
MAX |
UNIT |
| Input voltage |
VIN |
|
18 |
V |
| Output short-circuit |
|
30 |
mA |
| Operating temperature |
–55 |
125 |
°C |
| Junction temperature, TJ |
|
150 |
°C |
| Storage temperature, Tstg |
–65 |
150 |
°C |
(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied.
6.2 ESD Ratings
|
VALUE |
UNIT |
| V(ESD) |
Electrostatic discharge |
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) |
±3000 |
V |
| Charged-device model (CDM), per JEDEC specification JESD22-C101(2) |
±1000 |
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
|
MIN |
MAX |
UNIT |
| VIN |
VOUT + 0.2 V |
18 |
V |
| IOUT |
–10 |
10 |
mA |
6.4 Thermal Information
| THERMAL METRIC(1) |
REF502x-EP |
UNIT |
| D (SOIC) |
| 8 PINS |
| RθJA |
Junction-to-ambient thermal resistance |
97.1 |
°C/W |
| RθJC(top) |
Junction-to-case (top) thermal resistance |
42.2 |
°C/W |
| RθJB |
Junction-to-board thermal resistance |
34.6 |
°C/W |
(1) For more information about traditional and new thermal metrics, see the
Semiconductor and IC Package Thermal Metrics application report,
SPRA953.
6.5 Electrical Characteristics: Per Device
At TA = 25°C, ILOAD = 0, CL = 1 μF, and VIN = (VOUT + 0.2 V) to 18 V, unless otherwise noted.
| PARAMETER |
TEST CONDITIONS |
TA = 25°C |
TA = –55°C to 125°C |
UNIT |
| MIN |
TYP |
MAX |
MIN |
TYP |
MAX |
| REF5020 (VOUT = 2.048V)(1) |
| OUTPUT VOLTAGE |
| Output Voltage |
VOUT |
2.7 V < VIN < 18 V |
|
2.048 |
|
|
|
|
V |
| Initial Accuracy |
|
|
–0.05% |
|
0.05% |
|
|
|
|
|
Over Temperature |
|
|
|
|
–0.08% |
|
0.08% |
|
| NOISE |
| Output Voltage Noise |
f = 0.1 Hz to 10 Hz |
|
6 |
|
|
|
|
μVPP |
| REF5025 (VOUT = 2.5 V) |
| OUTPUT VOLTAGE |
| Output Voltage |
VOUT |
|
|
2.5 |
|
|
|
|
V |
| Initial Accuracy |
|
–0.05% |
|
0.05% |
|
|
|
|
| NOISE |
| Output Voltage Noise |
f = 0.1 Hz to 10 Hz |
|
7.5 |
|
|
|
|
μVPP |
| REF5040 (VOUT = 4.096V) |
| OUTPUT VOLTAGE |
|
|
|
|
|
|
|
|
| Output Voltage |
VOUT |
|
|
4.096 |
|
|
|
|
V |
| Initial Accuracy |
|
–0.05% |
|
0.05% |
|
|
|
|
|
Over Temperature |
|
|
|
|
|
–0.08% |
|
0.08% |
|
| NOISE |
| Output Voltage Noise |
f = 0.1 Hz to 10 Hz |
|
12 |
|
|
|
|
μVPP |
| REF5050 (VOUT = 5 V) |
| OUTPUT VOLTAGE |
| Output Voltage |
VOUT |
|
|
5 |
|
|
|
|
V |
| Initial Accuracy |
|
–0.05% |
|
0.05% |
|
|
|
|
|
Over Temperature |
|
|
|
|
|
–0.08% |
|
0.08% |
|
| NOISE |
| Output Voltage Noise |
f = 0.1 Hz to 10 Hz |
|
15 |
|
|
|
|
μVPP |
(1) For VOUT ≤ 2.5 V, the minimum supply voltage is 2.7 V.
6.6 Electrical Characteristics: All Devices
At TA = 25°C, ILOAD = 0, CL = 1 μF, and VIN = (VOUT + 0.2 V) to 18 V, unless otherwise noted.
| PARAMETER |
TEST CONDITIONS |
TA = 25°C |
TA = –55°C to 125°C |
UNIT |
| MIN |
TYP |
MAX |
MIN |
TYP |
MAX |
| OUTPUT VOLTAGE TEMPERATURE DRIFT |
| Output Voltage Temperature Drift |
dVOUT/dT |
|
|
|
|
|
|
|
|
|
REF5025 |
|
|
|
|
|
4 |
6.5 |
ppm/°C |
|
REF5050 |
|
|
|
|
|
4 |
6.5 |
ppm/°C |
|
All other devices |
|
|
|
|
|
3 |
5 |
ppm/°C |
| LINE REGULATION |
| Line Regulation |
dVOUT/dVIN |
|
|
|
|
|
|
|
|
|
REF5020(1) |
VIN = 2.7 V to 18V |
|
0.1 |
1 |
|
|
|
ppm/V |
|
All other devices |
VIN = VOUT + 0.2 V |
|
0.1 |
1 |
|
|
|
ppm/V |
|
Over Temperature |
|
|
|
|
|
1 |
3 |
ppm/V |
| LOAD REGULATION |
| Load Regulation |
dVOUT/dILOAD |
|
|
|
|
|
|
|
|
|
REF5020 |
–10 mA < ILOAD < +10 mA, VIN = 3 V |
|
20 |
30 |
|
|
|
ppm/mA |
|
All other devices |
–10 mA < ILOAD < +10 mA, VIN = VOUT + 0.75 V |
|
20 |
30 |
|
|
|
ppm/mA |
|
Over Temperature |
|
|
|
|
|
|
60 |
ppm/mA |
| SHORT-CIRCUIT CURRENT |
| Short-Circuit Current |
ISC |
VOUT = 0 |
|
25 |
|
|
|
|
mA |
| TEMP PIN |
| Voltage Output |
At TA = 25°C |
|
575 |
|
|
|
|
mV |
| Temperature Sensitivity |
|
|
|
|
|
2.64 |
|
mV/°C |
| TURNON SETTLING TIME |
| Turnon Settling Time |
To 0.1% with CL = 1 μF |
|
200 |
|
|
|
|
μs |
| POWER SUPPLY |
| Supply Voltage |
VIN |
See Note (1) |
VOUT + 0.2(1) |
|
18 |
|
|
|
V |
| Quiescent Current |
|
|
0.8 |
1 |
|
|
|
mA |
| Over Temperature |
|
|
|
|
|
|
1.25 |
mA |
| TEMPERATURE RANGE |
| Specified Range |
|
–55 |
|
125 |
|
|
|
°C |
| Operating Range |
|
–55 |
|
125 |
|
|
|
°C |
| Thermal Resistance |
θJA |
|
|
150 |
|
|
|
|
°C/W |
(1) For VOUT ≤ 2.5 V, the minimal supply voltage is 2.7 V.
6.7 Typical Characteristics
At TA = 25°C, ILOAD = 0, and VIN = VOUT + 0.2 V, unless otherwise noted. For VOUT ≤ 2.5 V, the minimum supply voltage is 2.7 V.
Figure 1. Temperature Drift
Figure 3. Output Voltage Initial Accuracy
Figure 5. Power-Supply Rejection Ratio vs Frequency
Figure 7. REF5025 Output Voltage vs Load Current
Figure 9. Quiescent Current vs Temperature
Figure 11. Line Regulation vs Temperature
Figure 13. NOISE
Figure 15. Start-up
Figure 17. Load Transient
Figure 19. Load Transient
Figure 21. Line Transient
Figure 2. Temperature Drift
Figure 4. Output Voltage Accuracy vs Temperature
Figure 6. Dropout Voltage vs Load Current
Figure 8. Temp Pin Output vs Voltage Temperature
Figure 10. Quiescent Current vs Input Voltage
Figure 12. Short-Circuit Current vs Temperature
Figure 14. Start-up
Figure 16. Load Transient
Figure 18. Load Transient
Figure 20. Line Transient