SBVS034P September   2003  – April 2026 TPS731

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagrams
    3. 6.3 Feature Description
      1. 6.3.1 Output Noise
      2. 6.3.2 Internal Current Limit
      3. 6.3.3 Enable Pin and Shutdown
      4. 6.3.4 Reverse Current
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation With 1.7V ≤ VIN ≤ 5.5V and VEN ≥ 1.7V
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Input and Output Capacitor Requirements
        2. 7.2.2.2 Dropout Voltage
        3. 7.2.2.3 Transient Response
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Thermal Considerations
        2. 7.4.1.2 Power Dissipation
      2. 7.4.2 Layout Examples
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Spice Models
      2. 8.1.2 Device Nomenclature
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

5.5 Electrical Characteristics

Over operating temperature range (TJ = –40°C to 125°C), VIN = VOUT(nom) + 0.5V(1), IOUT = 10mA, VEN = 1.7V, and COUT = 0.1μF (unless otherwise noted). Typical values are at TJ = 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VIN Input voltage range(1) 1.7 5.5 V
VFB Internal reference (TPS73101) TJ = 25°C  1.198 1.204 1.210 V
VOUT Output voltage range (TPS73101)(2) VFB 5.5 - VDO V
Accuracy(1)(3) Nominal  TJ = 25°C –0.5 0.5 %
VIN, IOUT, and T VOUT + 0.5V ≤ VIN ≤ 5.5V; 10mA ≤ IOUT ≤ 150mA  –1 ±0.5 1
ΔVOUT(ΔVIN) Line regulation (1) VOUT(nom) + 0.5V ≤ VIN ≤ 5.5V 0.01 %/V
ΔVOUT(ΔIOUT) Load regulation 1mA ≤ IOUT ≤ 150mA 0.002 %/mA
ΔVOUT(ΔIOUT) Load regulation 10mA ≤ IOUT ≤ 150mA 0.0005 %/mA
VDO Dropout voltage(4) (VIN = VOUT(NOM) - 0.1V) IOUT = 150mA 30 100 mV
ZO(DO) Output impedance in dropout 1.7V ≤ VIN ≤ VOUT + VDO 0.25 Ω
ICL Output current limit VOUT = 0.9 × VOUT(nom)  150 360 500 mA
ISC Short-circuit current VOUT = 0V 200 mA
IREV Reverse leakage current(5) (-IIN) VEN ≤ 0.5V, 0V ≤ VIN ≤ VOUT  0.1 10 µA
IGND Ground pin current IOUT = 10mA (IQ), legacy silicon 400 550 µA
IOUT = 10mA (IQ), new silicon       400 630
IGND Ground pin current IOUT = 10mA (IQ), VOUT = 5V only, new silicon 580 700 µA
IGND Ground pin current IOUT = 150mA 550 750 µA
IGND Ground pin current IOUT = 150mA, VOUT = 5V only, new silicon 700 850 µA
ISHDN Shutdown current (IGND) VEN ≤ 0.5V, VOUT ≤ VIN ≤ 5.5V, –40°C ≤ TJ ≤ 100℃, legacy silicon      0.02 1 µA
VEN ≤ 0.5V, VOUT ≤ VIN ≤ 5.5V, new silicon    0.02 1
IFB Feedback pin current (TPS73101) 0.1 0.3 µA
PSRR Power-supply rejection ratio (ripple rejection) f = 100Hz, IOUT = 150mA 58 dB
f = 10kHz, IOUT = 150mA 37
VN Output noise voltage, BW = 10Hz to 100kHz COUT = 10µF, no CNR 27 × VOUT µVRMS
COUT = 10µF, CNR =0.01µF 8.5 × VOUT
tSTR Startup time VOUT = 3V, RL = 30Ω, COUT = 1μF, CNR = 0.01μF 600 µs
VEN(high) EN pin high (enabled) 1.7 VIN V
VEN(low) EN pin low (shutdown) 0 0.5 V
IEN(high) Enable pin current (enabled) VEN = 5.5V   0.02 0.1 µA
TSD Thermal shutdown temperature Shutdown, temperature increasing 160 °C
Reset, temperature decreasing 140
TJ Operating junction temperature –40 125 ℃
(1) Minimum VIN = VOUT + VDO or 1.7V, whichever is greater.
(2) TPS73101 is tested at VOUT = 2.5V.
(3) Tolerance of external resistors not included in this specification.
(4) VDO is not measured for output versions with VOUT(nom) < 1.8V, because minimum VIN = 1.7V.
(5) Fixed-voltage versions only; refer to Application Information section for more information.