SBOS502F September   2009  – December 2016 REF5025-HT

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Output Adjustment Using the TRIM/NR Pin
      2. 7.3.2 Low Temperature Drift
      3. 7.3.3 Temperature Monitoring
      4. 7.3.4 Noise Performance
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Negative Reference Voltage
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Positive Reference Voltage
        1. 8.2.2.1 Detailed Design Procedure
          1. 8.2.2.1.1 Load Capacitance
          2. 8.2.2.1.2 Bandgap Noise Reduction
    3. 8.3 System Example
      1. 8.3.1 Data Acquisition
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Power Dissipation
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

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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 –55 210 °C
Junction temperature, TJ 210 °C
Storage temperature, Tstg –65 210 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

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 3.25 18 V
IOUT –7 7 mA

6.4 Thermal Information

THERMAL METRIC(1) REF5025-HT UNIT
HJK, HKQ (CFP)
8 PINS
RθJC Junction-to-case thermal resistance To ceramic side of case 5.7 °C/W
To top of case lid (metal side of case) 13.7
(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

at TA = 25°C, ILOAD = 0, CL = 1 μF, VIN = 3.25 V to 18 V (unless otherwise noted).
PARAMETER TEST CONDITIONS TA = –55 to +125°C TA = 210°C UNIT
MIN TYP MAX MIN TYP MAX
OUTPUT VOLTAGE (2.5 V)
VOUT Output voltage 2.5 2.5 V
Initial accuracy(1) VIN = 3.25 V 0% 0.9% 0.14%
NOISE
Output voltage noise f = 0.1 Hz to 10 Hz 7.5 μVPP
OUTPUT VOLTAGE TEMPERATURE DRIFT
dVOUT/dT Output voltage temperature drift(2) Calculated from
–55°C to +210°C 		40 ppm/°C
LINE REGULATION
dVOUT/dVIN Line regulation From VIN = 3.25 V to VIN = 18 V 1 2.2 63 215 ppm/V
LOAD REGULATION
dVOUT/dILOAD Load regulation –7 mA < ILOAD < 10 mA, VIN = 3.25 V 20 50 20 75 ppm/mA
SHORT-CIRCUIT CURRENT
ISC Short-circuit current VOUT = 0 V 25 11 mA
TEMP PIN
Voltage output At TA = 25°C 575 mV
Temperature sensitivity(3) 2.64 mV/°C
TURN-ON SETTLING TIME
Turn-on settling time To 0.1% with CL = 1 μF 200 μs
POWER SUPPLY
VS Supply voltage 3.25 18 3.25 18 V
Quiescent current 0.8 1.2 1.5 mA
TEMPERATURE RANGE
Specified range –55°C to +210°C
Operating range –55°C to +210°C
(1) See Figure 5.
(2) See Figure 4.
(3) See Figure 10.
REF5025-HT op_life_bos502.gif
2. Silicon operating life design goal is 10 years at 105°C junction temperature (does not include package interconnect life).
Figure 1. REF5025SKGD1 and REF5025SKGD2 Operating Life Derating Chart

6.6 Typical Characteristics

at TA = 25°C, ILOAD = 0, VS = 3.25 V (unless otherwise noted).
REF5025-HT tc_histo_0-85_bos456.gif Figure 2. Temperature Drift (0°C to 85°C)
REF5025-HT tc_55_210_bos502.gif Figure 4. Temperature Drift (–55°C to +210°C)
REF5025-HT tc_vout_acc-temp_bos502.gif Figure 6. Output Voltage Accuracy vs Temperature
REF5025-HT tc_vdrop_iload_bos456.gif Figure 8. Dropout Voltage vs Load Current
REF5025-HT temp_vout_temp8_bos502.gif Figure 10. Temperature Pin Output Voltage vs Temperature
REF5025-HT iq_vin10_bos502.gif Figure 12. Quiescent Current vs Input Voltage
REF5025-HT isc_temp12_bos502.gif Figure 14. Short-Circuit Current vs Temperature
REF5025-HT tc_startup_1_bos456.gif
CL = 1 μF
Figure 16. Start-Up (REF5025)
REF5025-HT tc_load_tran_1_1_bos456.gif
IOUT = 1 mA CL = 1 μF
Figure 18. Load Transient
REF5025-HT tc_load_tran_10_1_bos456.gif
CL = 10 μF IOUT = 1 mA
Figure 20. Load Transient
REF5025-HT tc_line_tran_1_bos456.gif
CL = 1 μF
Figure 22. Line Transient
REF5025-HT tc_histo_40-125_bos456.gif Figure 3. Temperature Drift (–40°C to +125°C)
REF5025-HT tc_vout_bos502.gif Figure 5. Output Voltage and Initial Accuracy (210°C)
REF5025-HT tc_psrr-freq_bos456.gif Figure 7. Power-Supply Rejection Ratio vs Frequency
REF5025-HT vout_iload_bos502.gif Figure 9. Output Voltage vs Load Current
REF5025-HT iq_temp9_bos502.gif Figure 11. Quiescent Current vs Temperature
REF5025-HT line_reg-tmp_bos502.gif Figure 13. Line Regulation vs Temperature
REF5025-HT tc_noise_bos456.gif Figure 15. Noise
REF5025-HT tc_startup_10_bos456.gif
CL = 10 μF
Figure 17. Start-Up (REF5025)
REF5025-HT tc_load_tran_1_10_bos456.gif
IOUT = 10 mA CL = 1 μF
Figure 19. Load Transient
REF5025-HT tc_load_tran_10_10_bos456.gif
CL = 10 μF IOUT = 10 mA
Figure 21. Load Transient
REF5025-HT tc_line_tran_10_bos456.gif
CL = 10 μF
Figure 23. Line Transient