SBOS456H September   2008  – February 2015 REF5020A-Q1 , REF5025A-Q1 , REF5030A-Q1 , REF5040A-Q1 , REF5045A-Q1 , REF5050A-Q1

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Simplified Schematic
  5. Revision History
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics: Per Device
    6. 7.6 Electrical Characteristics: All Devices
    7. 7.7 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Supply Voltage
      2. 8.3.2 Using the TRIM/NR Pin
      3. 8.3.3 Temperature Drift
      4. 8.3.4 Temperature Monitoring
    4. 8.4 Device Functional Modes
  9. Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Thermal Hysteresis
    2. 9.2 Typical Applications
      1. 9.2.1 Standalone Applications
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Power Dissipation
          2. 9.2.1.2.2 Noise Performance
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Negative-Reference Voltage Applications
      3. 9.2.3 Data-Acquisition Applications
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Related Links
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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7 Specifications

7.1 Absolute Maximum Ratings(1)

MIN MAX UNIT
Input voltage 18 V
Output short-circuit 30 mA
Operating temperature –40 125 °C
Junction temperature (TJ max) 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.

7.2 ESD Ratings

VALUE UNIT
REF5020A-Q1, REF5040A-Q1, AND REF5050A-Q1
V(ESD) Electrostatic discharge Human-body model (HBM), per AEC Q100-002(1) ±500 V
Charged-device model (CDM), per AEC Q100-011 ±1000
Machine Model (MM) 200
REF5030A-Q1 AND REF5045A-Q1
V(ESD) Electrostatic discharge Human-body model (HBM), per AEC Q100-002(1) ±1000 V
Charged-device model (CDM), per AEC Q100-011 ±1000
Machine Model (MM) 200
(1) AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.

7.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
VIN Supply input voltage VOUT + 0.2(1) 18 V
(1) For VOUT ≤ 2.5 V, the minimum supply voltage is 2.7 V.

7.4 Thermal Information

THERMAL METRIC(1) D (SOIC) UNIT
8 PINS
RθJA Junction-to-ambient thermal resistance 107.1 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 48.8
RθJB Junction-to-board thermal resistance 48.3
ψJT Junction-to-top characterization parameter 6.8
ψJB Junction-to-board characterization parameter 47.6
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

7.5 Electrical Characteristics: Per Device

TA = 25°C, ILOAD = 0, CL = 1 μF, VIN = (VOUT + 0.2 V) to 18 V (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
REF5020 (VOUT = 2.048 V)(1)
VOUT Output voltage 2.7 V < VIN < 18 V 2.048 V
Initial accuracy, standard grade –0.1% 0.1%
Output voltage noise f = 0.1 Hz to 10 Hz 6 μVPP
REF5025 (VOUT = 2.5 V)
VOUT Output voltage 2.5 V
Initial accuracy, standard grade –0.1% 0.1%
Output Voltage Noise f = 0.1 Hz to 10 Hz 7.5 μVPP
REF5030 (VOUT = 3 V)
VOUT Output voltage 3 V
Initial accuracy, standard grade –0.1% 0.1%
Output voltage noise f = 0.1 Hz to 10 Hz 9 μVPP
REF5040 (VOUT = 4.096 V)
VOUT Output voltage 4.096 V
Initial accuracy, standard grade –0.1% 0.1%
Output voltage noise f = 0.1 Hz to 10 Hz 12 μVPP
REF5045 (VOUT = 4.5 V)
VOUT Output voltage 4.5 V
Initial accuracy, standard grade –0.1% 0.1%
Output voltage noise f = 0.1 Hz to 10 Hz 13.5 μVPP
REF5050 (VOUT = 5 V)
VOUT Output voltage 5 V
Initial accuracy, standard grade –0.1% 0.1%
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.

7.6 Electrical Characteristics: All Devices

Boldface limits apply over the specified temperature range, TA = –40°C to 125°C.
TA = 25°C, ILOAD = 0, CL = 1 μF, VIN = (VOUT + 0.2 V) to 18 V (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
dVOUT/dT Output voltage temperature drift, standard grade Over temperature 3 8 ppm/°C
dVOUT/dVIN Line regulation REF5020 only(1) VIN = 2.7 V to 18 V 0.1 1 ppm/V
All other devices VIN = VOUT + 0.2 V 0.1 1 ppm/V
All devices Over temperature 0.2 1 ppm/V
dVOUT/dILOAD Load regulation REF5020 only –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
All devices Over temperature,
–10 mA < ILOAD < +10 mA
50 ppm/mA
ISC Short-circuit current VOUT = 0 V 25 mA
Thermal hysteresis, (2) standard grade Cycle 1 10 ppm
Cycle 2 5 ppm
Long-Term Stability 0 to 1000 hours 90 ppm/1000 hr
1000 to 2000 hours 10 ppm/1000 hr
Voltage output, TEMP pin At TA = 25°C 575 mV
Temperature sensitivity , TEMP pin Over temperature 2.64 mV/°C
Turn-on settling time To 0.1% with CL = 1 μF 200 μs
VS Power supply voltage See Note (1) VOUT + 0.2(1) 18 V
Power supply, quiescent current 0.8 1 mA
Over temperature 1.2 mA
TEMPERATURE RANGE
Specified range –40 125 °C
Operating range –55 125 °C
Thermal resistance 150 °C/W
(1) For VOUT ≤ 2.5 V, the minimal supply voltage is 2.7 V.
(2) The Thermal Hysteresis section explains the thermal hysteresis procedure in detail.

7.7 Typical Characteristics

TA = 25°C, ILOAD = 0, VS = VOUT + 0.2 V (unless otherwise noted). For VOUT ≤ 2.5 V, the minimum supply voltage is 2.7 V.
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_histo_0-85_bos456.gif
Figure 1. Temperature Drift (0°C to 85°C)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_histo_vout_bos456.gif
Figure 3. Output Voltage Initial Accuracy
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_psrr-freq_bos456.gif
Figure 5. Power-Supply Rejection Ratio vs Frequency
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_vout-iload_5025_bos456.gif
Figure 7. REF5025A-Q1 Output Voltage vs Load Current
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_iq-tmp_bos456.gif
Figure 9. Quiescent Current vs Temperature
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_line_reg-tmp_bos456.gif
Figure 11. Line Regulation vs Temperature
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_noise_bos456.gif
Figure 13. Noise
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_startup_10_bos456.gif
Figure 15. Startup (REF5025A-Q1, CL = 10 μF)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_load_tran_1_10_bos456.gif
Figure 17. Load Transient (CL = 1 μF, IOUT = 10 mA)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_load_tran_10_10_bos456.gif
Figure 19. Load Transient (CL = 10 μF, IOUT = 10 mA)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_line_tran_10_bos456.gif
Figure 21. Line Transient (CL = 10 μF)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_long_term_stable_5040_2k_bos410.gif
Figure 23. REF50xxA-Q1 Long-Term Stability (Second 1000 Hours)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_histo_40-125_bos456.gif
Figure 2. Temperature Drift (–40°C to 125°C)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_vout_acc-tmp_bos456.gif
Figure 4. Output Voltage Accuracy vs Temperature
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_vdrop_iload_bos456.gif
Figure 6. Dropout Voltage vs Load Current
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_temp_vout-tmp_bos456.gif
Figure 8. TEMP Pin Output Voltage vs Temperature
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_new_iq_vin_bos410.gif
Figure 10. Quiescent Current vs Input Voltage
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_isc-tmp_bos456.gif
Figure 12. Short-Circuit Current vs Temperature
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_startup_1_bos456.gif
Figure 14. Startup (REF5025A-Q1, CL = 1 μF)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_load_tran_1_1_bos456.gif
Figure 16. Load Transient (CL = 1 μF, IOUT = 1 mA)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_load_tran_10_1_bos456.gif
Figure 18. Load Transient (CL = 10 μF, IOUT = 1 mA)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_line_tran_1_bos456.gif
Figure 20. Line Transient (CL = 1 μF)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_long_term_stable_5040_1k_bos410.gif
Figure 22. REF50xxA-Q1 Long-Term Stability (First 1000 Hours)
REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 tc_long_term_stable_5040_bos410.gif
Figure 24. REF50xxA-Q1 Long-Term Stability (2000 Hours)