SGLS162I April   2003  – March 2016 TPS793-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Voltage Options
  6. 6 Pin Configuration and Functions
  7. 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
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Lockout (UVLO)
      2. 8.3.2 Shutdown
      3. 8.3.3 Foldback Current Limit
      4. 8.3.4 Thermal Protection
      5. 8.3.5 Reverse Current Operation
      6. 8.3.6 Regulator Protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation
      2. 8.4.2 Dropout Operation
      3. 8.4.3 Disabled
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 External Capacitor Requirements
        2. 9.2.2.2 Programming the TPS79301-Q1 Adjustable LDO Regulator
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Board Layout Recommendations to Improve PSRR and Noise Performance
    2. 11.2 Layout Example
    3. 11.3 Power Dissipation and Junction Temperature
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
        1. 12.1.1.1 Evaluation Modules
        2. 12.1.1.2 Spice Models
      2. 12.1.2 Device Nomenclature
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Community Resource
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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7 Specifications

7.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Input voltage(2) –0.3 6 V
Voltage range at EN –0.3 VI + 0.3 V
Voltage on OUT –0.3 6 V
Peak output current Internally limited
Continuous total power dissipation See Thermal Information
TJ Operating junction temperature –40 150 °C
Tstg Storage temperature –65 150 °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.
(2) All voltage values are with respect to network ground terminal

7.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per AEC Q100-002(1) ±2000 V
Charged-device model (CDM), per AEC Q100-011 ±250
(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 NOM MAX UNIT
VIN Input supply voltage 2.7 5.5 V
VEN Enable supply voltage 0 VIN V
VOUT Output voltage VFB 5 V
IOUT Output current 0 200 mA
TJ Operating junction temperature –40 125 °C
CIN Input capacitor 0.1 1 µF
COUT Output capacitor 2.2 10 µF
CNR Noise reduction capacitor 0 10 nF
CFF Feed-forward capacitor 15 pF
R2 Lower feedback resistor 30.1 kΩ

7.4 Thermal Information

THERMAL METRIC(1) TPS793xx-Q1 UNIT
DBV (SOT-23)
6 PINS
RθJA Junction-to-ambient thermal resistance 225.1 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 78.4 °C/W
RθJB Junction-to-board thermal resistance 54.7 °C/W
ψJT Junction-to-top characterization parameter 3.3 °C/W
ψJB Junction-to-board characterization parameter 53.8 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance N/A °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.

7.5 Electrical Characteristics

over recommended operating free-air temperature range, EN = VI, TJ = –40 to 125°C, VI = VO(typ) + 1 V, IO = 1 mA, Co = 10 μF, C(byp) = 0.01 μF (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VI Input voltage(1) 2.7 5.5 V
IO Continuous output current 0 200 mA
TJ Operating junction temperature –40 125 °C
Output voltage TPS79301-Q1 0 μA < IO < 200 mA VFB 5.5 – VDROPOUT V
TPS79318-Q1 TJ = 25°C 1.8
0 μA < IO < 200 mA, 2.8 V < VI < 5.5 V 1.764 1.836
TPS79325-Q1 TJ = 25°C 2.5
0 μA < IO < 200 mA, 3.5 V < VI < 5.5 V 2.45 2.55
TPS79328-Q1 TJ = 25°C 2.8
0 μA < IO < 200 mA, 3.8 V < VI < 5.5 V 2.744 2.856
TPS79330-Q1 TJ = 25°C 3
0 μA < IO < 200 mA, 4 V < VI < 5.5 V 2.94 3.06
TPS79333-Q1 TJ = 25°C 3.3
0 μA < IO < 200 mA, 4.3 V < VI < 5.5 V 3.234 3.366
TPS793475-Q1 TJ = 25°C 4.75
0 μA < IO < 200 mA, 5.25 V < VI < 5.5 V 4.655 4.845
Quiescent current (GND current) 0 μA < IO < 200 mA, TJ = 25°C 170 μA
0 μA < IO < 200 mA 220
Load regulation 0 μA < IO < 200 mA, TJ = 25°C 5 mV
Output voltage line regulation (ΔVO/VO) VO + 1 V < VI ≤ 5.5 V, TJ = 25°C 0.05 %/V
VO + 1 V < VI ≤ 5.5 V 0.12
Output noise voltage TPS79328-Q1 BW = 200 Hz to 100 kHz,
IO = 200 mA, TJ = 25°C		 C(byp) = 0.001 μF 55 μVRMS
C(byp) = 0.0047 μF 36
C(byp) = 0.01 μF 33
C(byp) = 0.1 μF 32
Time, start-up TPS79328-Q1 RL = 14 Ω,
Co = 1 μF, TJ = 25°C		 C(byp) = 0.001 μF 50 μs
C(byp) = 0.0047 μF 70
C(byp) = 0.01 μF 100
Output current limit VO = 0 V 285 600 mA
Standby current(3) EN = 0 V, 2.7 V < VI < 5.5 V 0.07 1 μA
High-level enable input voltage 2.7 V < VI < 5.5 V 2 V
Low-level enable input voltage 2.7 V < VI < 5.5 V 0.7 V
Input current (EN) EN = 0 –1 1 μA
Input current (FB) TPS79301-Q1 FB = 1.8 V 1 μA
Internal reference, VFB TPS79301-Q1 1.201 1.225 1.250 V
Power-supply ripple rejection TPS79328-Q1 f = 100 Hz, TJ = 25°C, IO = 10 mA 70 dB
IO = 200 mA 68
f = 10 kHz, TJ = 25°C, IO = 200 mA 70
f = 100 kHz, TJ = 25°C, 43
Dropout voltage(2) TPS79328-Q1 IO = 200 mA, TJ = 25°C 120 mV
IO = 200 mA 200
TPS79330-Q1 IO = 200 mA, TJ = 25°C 112
IO = 200 mA 200
TPS79333-Q1 IO = 200 mA, TJ = 25°C 102
IO = 200 mA 180
TPS793475-Q1 IO = 200 mA, TJ = 25°C 77
IO = 200 mA 125
UVLO threshold VCC rising 2.25 2.65 V
UVLO hysteresis TJ = 25°C VCC rising 100 mV
(1) Minimum VIN is 2.7 V or VOUT + VDO, whichever is greater.
(2) Dropout is not measured for the TPS79318-Q1 and TPS79325-Q1 since minimum VIN = 2.7 V.
(3) For adjustable versions, this parameter applies only after VIN is applied; then VEN transitions high to low.

7.6 Typical Characteristics

TPS793-Q1 typ1_sgls162.gif
Figure 1. TPS79328-Q1 Output Voltage vs Output Current
TPS793-Q1 typ3_sgls162.gif
Figure 3. TPS79328-Q1 Ground Current vs
Junction Temperature
TPS793-Q1 typ5_sgls162.gif
Figure 5. TPS79328-Q1 Output Spectral Noise Density vs Frequency
TPS793-Q1 typ7_sgls162.gif
Figure 7. Root Mean Squared Output Noise vs
Bypass Capacitance
TPS793-Q1 typ9_sgls162.gif
Figure 9. TPS79328-Q1 Dropout Voltage vs Junction Temperature
TPS793-Q1 typ11_sgls162s.gif
Figure 11. TPS79328-Q1 Ripple Rejection vs Frequency
TPS793-Q1 typ13_sgls162.gif
Figure 13. TPS79328-Q1 Output Voltage and Enable Voltage vs Time (Start-Up)
TPS793-Q1 typ15_sgls162.gif
Figure 15. TPS79328-Q1 Load Transient Response
TPS793-Q1 typ17_sgls162.gif
Figure 17. Dropout Voltage vs Output Current
TPS793-Q1 typ19_sgls162.gif
Figure 19. Minimum Required Input Voltage vs Output Voltage
TPS793-Q1 typ21_sgls162.gif
Figure 21. Typical Regions of Stability Equivalent Series Resistance (ESR) vs Output Current
TPS793-Q1 typ2_sgls162.gif
Figure 2. TPS79328-Q1 Output Voltage vs
Junction Temperature
TPS793-Q1 typ4_sgls162.gif
Figure 4. TPS79328-Q1 Output Spectral Noise Density vs Frequency
TPS793-Q1 typ6_sgls162.gif
Figure 6. TPS79328-Q1 Output Spectral Noise Density vs Frequency
TPS793-Q1 typ8_sgls162.gif
Figure 8. Output Impedance vs Frequency
TPS793-Q1 typ10_sgls162.gif
Figure 10. TPS79328-Q1 Ripple Rejection vs Frequency
TPS793-Q1 typ12_sgls162.gif
Figure 12. TPS79328-Q1 Ripple Rejection vs Frequency
TPS793-Q1 typ14_sgls162.gif
Figure 14. TPS79328-Q1 Line Transient Response
TPS793-Q1 typ16_sgls162.gif
Figure 16. Power Up and Power Down
TPS793-Q1 typ18_sgls162.gif
Figure 18. TPS79301-Q1 Dropout Voltage vs Input Voltage
TPS793-Q1 typ20_sgls162.gif
Figure 20. Typical Regions of Stability Equivalent Series Resistance (ESR) vs Output Current
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