SBVS245A October   2014  – March 2015 TPS706

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 Timing Requirements
    7. 6.7 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 Undervoltage Lockout (UVLO)
      2. 7.3.2 Shutdown
      3. 7.3.3 Reverse Current Protection
      4. 7.3.4 Internal Current Limit
      5. 7.3.5 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Dropout Operation
      3. 7.4.3 Disabled
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input and Output Capacitor Considerations
      2. 8.1.2 Dropout Voltage
      3. 8.1.3 Transient Response
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Board Layout Recommendations to Improve PSRR and Noise Performance
      2. 10.1.2 Power Dissipation
    2. 10.2 Layout Examples
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 Spice Models
      2. 11.1.2 Device Nomenclature
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6 Specifications

6.1 Absolute Maximum Ratings

specified at TJ = –40°C to 125°C, unless otherwise noted; all voltages are with respect to GND(1)
MIN MAX UNIT
Voltage VIN –0.3 7 V
VEN –0.3 7 V
VOUT –0.3 7 V
Maximum output current IOUT Internally limited
Output short-circuit duration Indefinite
Continuous total power dissipation PDISS See Thermal Information
Junction temperature, TJ –55 150 °C
Storage temperature, Tstg –55 150 °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) ±2000 V
Charged device model (CDM), per JEDEC specification JESD22-C101(2) ±500
(1) JEDEC document JEP155 states that 2-kV HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 500-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

over operating junction temperature range (unless otherwise noted)
MIN NOM MAX UNIT
VIN Input voltage 2.7 6.5 V
VOUT Output voltage 1.2 5 V
IOUT Output current 0 150 mA
VEN Enable voltage 0 6.5 V
CIN Input capacitor 0 1 µF
COUT Output capacitor 2 2.2 47 µF
TJ Operating junction temperature –40 125 °C

6.4 Thermal Information

THERMAL METRIC(1) TPS706 UNIT
DBV DRV
5 PINS 6 PINS
RθJA Junction-to-ambient thermal resistance 212.1 73.1 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 78.5 97.0
RθJB Junction-to-board thermal resistance 39.5 42.6
ψJT Junction-to-top characterization parameter 2.86 2.9
ψJB Junction-to-board characterization parameter 38.7 42.9
RθJC(bot) Junction-to-case (bottom) thermal resistance N/A 12.8
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

6.5 Electrical Characteristics

At TJ = –40°C to 125°C, VIN = VOUT(nom) + 1 V or 2.7 V (whichever is greater), IOUT = 1 mA, VEN = 2 V, and CIN = COUT = 2.2-μF ceramic, unless otherwise noted. Typical values are at TJ = 25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VIN Input voltage range 2.7 6.5 V
VOUT Output voltage range 1.2 5.0 V
VOUT(accuracy) DC output accuracy VOUT < 3.3 V –2% 2%
VOUT ≥ 3.3 V, TJ = –40°C to 85°C –1% 1%
ΔVOUT Line regulation (VOUT(nom) + 1 V, 2.7 V) ≤ VIN ≤ 6.5 V 3 10 mV
Load regulation VIN = VOUT(nom) + 1.5 V or 3 V (whichever is greater), 100 µA ≤ IOUT ≤ 150 mA 20 50 mV
VDO Dropout voltage(1)(3) 2.8 V ≤ VOUT ≤ 3.3 V, IOUT = 50 mA 295 650 mV
2.8 V ≤ VOUT ≤ 3.3 V, IOUT = 150 mA 975 1540 mV
I(CL) Output current limit(4) VOUT = 0.9 × VOUT(nom) 200 320 500 mA
IGND Ground pin current IOUT = 0 mA, VOUT ≤ 3.3 V 1.3 2.55 µA
IOUT = 150 mA 350 µA
ISHDN Shutdown current VEN ≤ 0.4 V, VIN = 2.7 V 150 nA
PSRR Power-supply rejection ratio f = 10 Hz 80 dB
f = 100 Hz 62 dB
f = 1 kHz 52 dB
Vn Output noise voltage BW = 10 Hz to 100 kHz, IOUT = 10 mA,
VIN = 2.7 V, VOUT = 1.2 V		 190 μVRMS
VEN(HI) Enable pin high (enabled) 0.9 V
Enable pin high (disabled) 0 0.4 V
IEN EN pin current EN = 1.0 V, VIN = 5.5 V 300 nA
IREV Reverse current
(flowing out of IN pin)		 VOUT = 3 V, VIN = VEN = 0 V 10 nA
Reverse current
(flowing into OUT pin)		 VOUT = 3 V, VIN = VEN = 0 V 100 nA
TSD Thermal shutdown temperature Shutdown, temperature increasing 158 °C
Reset, temperature decreasing 140 °C
TJ Operating junction temperature –40 125 °C
(1) VDO is measured with VIN = 0.98 × VOUT(nom).
(2) Startup time = time from EN assertion to 0.95 × VOUT(nom) and load = 47 Ω.
(3) Dropout is only valid when VOUT ≥ 2.8 V because of the minimum input voltage limits.
(4) Measured with VIN = VOUT + 3 V for VOUT ≤ 2.5 V. Measured with VIN = VOUT + 2.5 V for VOUT > 2.5 V.

6.6 Timing Requirements

At TJ = –40°C to 125°C, VIN = VOUT(nom) + 1 V or 2.7 V (whichever is greater), RL = 47 Ω, VEN = 2 V, and CIN = COUT = 2.2-μF ceramic, unless otherwise noted. Typical values are at TJ = 25°C.
PARAMETER MIN TYP MAX UNIT
tSTR Start-up time(2) VOUT(nom) ≤ 3.3 V 200 600 µs
VOUT > 3.3 V 500 1500 µs

6.7 Typical Characteristics

Over operating temperature range (TJ = –40°C to 125°C), IOUT = 10 mA, VEN = 2 V, COUT = 2.2 μF, and VIN = VOUT(nom) + 1 V or 2.7 V (whichever is greater), unless otherwise noted. Typical values are at TJ = 25°C.
TPS706 D001_SBVS245.gif
TPS70612
Figure 1. 1.2-V Line Regulation vs VIN and Temperature
TPS706 D004_SBVS245.gif
TPS70612
Figure 3. 1.2-V Load Regulation vs IOUT and Temperature
TPS706 D006_SBVS245.gif
TPS70612
Figure 5. VOUT vs Temperature
TPS706 D008_SBVS245.gif
TPS70633
Figure 7. 3.3-V Current Limit vs VIN and Temperature
TPS706 D014_SBVS245.gif
TPS70633, EN = open
Figure 9. GND Current vs VIN and Temperature
TPS706 D022_SBVS245.gif
Shutdown current, TPS70612
Figure 11. Shutdown Current vs VIN and Temperature
TPS706 D012_SBVS245.gif
VOUT = 2.8 V
Figure 13. Noise
TPS706 G020_BVS245.gif
Channel 2 = VOUT, channel 4 = IOUT, VIN = 2.7 V
Figure 15. TPS70612 Load Transient (0 mA to 50 mA)
TPS706 G022_BVS245.gif
Channel 2 = VOUT, channel 4 = IOUT, VIN = 2.7 V
Figure 17. TPS70612 Load Transient (50 mA to 0 mA)
TPS706 G024_BVS245.gif
Channel 2 = VOUT, channel 4 = IOUT, VIN = 4.3 V
Figure 19. TPS70633 Load Transient (0 mA to 50 mA)
TPS706 G026_BVS245.gif
Channel 2 = VOUT, channel 4 = IOUT, VIN = 4.3 V
Figure 21. TPS70633 Load Transient (50 mA to 0 mA)
TPS706 G028_BVS245.gif
Channel 2 = VOUT, channel 4 = VIN, IOUT = 10 mA
Figure 23. TPS70612 Line Transient (2.7 V to 3.7 V)
TPS706 G030_BVS245.gif
Channel 2 = VOUT, channel 4 = VIN, IOUT = 10 mA
Figure 25. TPS70633 Line Transient (4.3 V to 5.3 V)
TPS706 G032_BVS245.gif
Channel 1 = EN, channel 2 = VOUT, VIN = 4.3 V, COUT = 2.2 µF, TPS70633
Figure 27. Power-Up with Enable
TPS706 G034_BVS245.gif
Channel 1 = VIN, channel 2 = VOUT, IOUT = 150 mA, TPS70633
Figure 29. Power-Up and Power-Down Response
TPS706 D003_SBVS245.gif
TPS70633
Figure 2. 3.3-V Line Regulation vs VIN and Temperature
TPS706 D005_SBVS245.gif
TPS70633
Figure 4. 3.3-V Load Regulation vs IOUT and Temperature
TPS706 D007_SBVS245.gif
TPS70612
Figure 6. 1.2-V Current Limit vs VIN and Temperature
TPS706 D020_SBVS245.gif
TPS70612
Figure 8. GND Current vs VIN and Temperature
TPS706 D021_SBVS245.gif
TPS70612
Figure 10. GND Current vs IOUT and Temperature
TPS706 D002_SBVS245.gif
VOUT = 2.8 V, VIN = 3.8 V, COUT = 2.2 µF
Figure 12. Power-Supply Rejection Ratio vs Frequency
TPS706 C019_SBVS245.png
TPS70612
Figure 14. Start-Up Time vs Temperature
TPS706 G021_BVS245.gif
Channel 2 = VOUT, channel 4 = IOUT, VIN = 2.7 V
Figure 16. TPS70612 Load Transient (1 mA to 150 mA)
TPS706 G023_BVS245.gif
Channel 2 = VOUT, channel 4 = IOUT, VIN = 2.7 V
Figure 18. TPS70612 Load Transient (50 mA to 150 mA)
TPS706 G025_BVS245.gif
Channel 2 = VOUT, channel 4 = IOUT, VIN = 4.3 V
Figure 20. TPS70633 Load Transient (1 mA to 150 mA)
TPS706 G027_BVS245.gif
Channel 2 = VOUT, channel 4 = IOUT, VIN = 4.3 V
Figure 22. TPS70633 Load Transient (50 mA to 150 mA)
TPS706 G029_BVS245.gif
Channel 2 = VOUT, channel 4 = VIN, IOUT = 50 mA
Figure 24. TPS70612 Line Transient (2.7 V to 3.7 V)
TPS706 G031_BVS245.gif
Channel 2 = VOUT, channel 4 = VIN, IOUT = 50 mA
Figure 26. TPS70633 Line Transient (4.3 V to 5.3 V)
TPS706 G033_BVS245.gif
Channel 1 = VIN, channel 2 = VOUT, IOUT = 3 mA, TPS70633
Figure 28. Power-Up and Power-Down Response