SBVS411A August   2020  – October 2020 TPS784

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 Foldback Current Limit
      2. 7.3.2 Output Enable
      3. 7.3.3 Active Discharge
      4. 7.3.4 Undervoltage Lockout (UVLO) Operation
      5. 7.3.5 Dropout Voltage
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Functional Mode Comparison
      2. 7.4.2 Normal Operation
      3. 7.4.3 Dropout Operation
      4. 7.4.4 Disabled
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Recommended Capacitor Types
      2. 8.1.2 Input and Output Capacitor Requirements
      3. 8.1.3 Output Voltage Setting (Feedback Resistors)
      4. 8.1.4 Load Transient Response
      5. 8.1.5 Exiting Dropout
      6. 8.1.6 Dropout Voltage
      7. 8.1.7 Reverse Current
      8. 8.1.8 Feed-Forward Capacitor (CFF)
      9. 8.1.9 Power Dissipation (PD)
        1. 8.1.9.1 Estimating Junction Temperature
        2. 8.1.9.2 Recommended Area for Continuous Operation
    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 Additional Layout Considerations
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Device Nomenclature
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

6.5 Electrical Characteristics

at operating temperature range (TJ = –40°C to +150°C), VIN = VOUT(NOM) + 0.5 V or 1.65 V (whichever is greater), IOUT = 1 mA, VEN = VIN, CIN = COUT = 1 µF, and CFF = open, unless otherwise noted. All typical values at TJ = 25°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VIN Input voltage 1.65 6.0 V
VOUT Output voltage 1.2 5.5
VOUT Output accuracy(1) 1 mA ≤ IOUT ≤ 300 mA, VOUT(NOM) + 0.5 V ≤ VIN ≤ 6.0 V TJ = 25°C –0.5 0.5 %
–40°C ≤ TJ ≤ 85°C –0.75 0.75
85°C ≤ TJ ≤ 150°C –1 1
Line regulation VOUT(NOM) + 0.5 V ≤ VIN ≤ 6.0 V 0.3 mV
Load regulation 0.1 mA ≤ IOUT ≤ 300 mA TJ = 25°C –5 5
–40°C ≤ TJ  ≤ 85°C
–40°C ≤ TJ  ≤ 150°C –5 10
IGND Ground current TJ = 25°C, IOUT = 0 mA 15 25 30 µA
IOUT = 0 mA 35
ISHDN Shutdown current VEN ≤ 0.3 V, 1.65 V ≤ VIN ≤ 6.0 V, TJ = 25°C 0.15 1

VEN ≤ 0.3 V, 1.65 V ≤ VIN ≤ 6.0 V, –40°C ≤ TJ ≤ 85°C
 		 1
VEN ≤ 0.3 V, 1.65 V ≤ VIN ≤ 6.0 V, –40°C ≤ TJ ≤ 150°C 3
VFB Feedback voltage 1.182 1.2 1.218 V
IFB Feedback pin current –0.1 0.01 0.05 µA
ICL Output current limit VIN = VOUT(NOM) + 1 V,
VOUT = 0.9 x VOUT(NOM) (2) 		320 460 mA
ISC Short-circuit current limit VOUT = 0 V 175
VDO Dropout voltage IOUT = 300 mA,
VOUT = 0.95 x VOUT(NOM) 		1.2 V ≤ VOUT < 1.5 V 300 mV
1.5 V ≤ VOUT < 1.8 V 175
1.8 V ≤ VOUT < 2.5 V 140
2.5 V ≤ VOUT ≤ 5.0 V 115
PSRR Power-supply rejection ratio VOUT = 3.3 V, IOUT = 300 mA,  VIN = VOUT(NOM) + 1 V f = 1 kHz 52 dB
f = 100 kHz 49
f = 1 MHz 30
Vn Output noise voltage BW = 10 Hz to 100 kHz, VOUT = 1.2 V 30 µVRMS
VUVLO,rising Undervoltage lockout VIN rising 1.32 1.42 1.6 V
VUVLO,falling VIN falling 1.17 1.29 1.42
VUVLO,HYST Undervoltage lockout hysteresis VIN hysteresis 130 mV
tSTR Startup time From EN low-to-high transition to VOUT = VOUT(NOM) x 95%(3) 500 780 µs
VEN(HI) EN pin high voltage (enabled) 0.85 V
VEN(LO) EN pin low voltage (enabled) 0.425
IEN Enable pin current VIN = VEN = 6.0 V 10 nA
RPULLDOWN Pulldown resistance VIN = 3.3 V 100 Ω
TSD(shutdown) Thermal shutdown temperature Shutdown, temperature increasing 170 °C
TSD(reset) Thermal shutdown reset temperature Reset, temperature decreasing 160
(1) Feedback resistors tolerance is not included in overall accuracy.
(2) The output is being forced to 90% of the nominal VOUT value.
(3) Startup time = time from EN assertion to 0.95×VOUT(NOM).