SLVSH38 November   2023 TPS61377

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 VCC Power Supply
      2. 7.3.2 Enable and Programmable UVLO
      3. 7.3.3 Soft Start
      4. 7.3.4 Switching Frequency
      5. 7.3.5 Programmable Inductor Peak Current Limit
      6. 7.3.6 Shut Down
      7. 7.3.7 Overvoltage Protection
      8. 7.3.8 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation
      2. 7.4.2 Forced PWM Mode
      3. 7.4.3 Auto PFM Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Setting Output Voltage
        2. 8.2.2.2 Inductor Selection
        3. 8.2.2.3 Bootstrap Capacitor Selection
        4. 8.2.2.4 Input Capacitor Selection
        5. 8.2.2.5 Output Capacitor Selection
        6. 8.2.2.6 Loop Stability
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
        1. 8.4.2.1 Thermal Considerations
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

6.5 Electrical Characteristics

TJ = –40 to 125°C, L = 4.7 µH, VIN = 5 V and VOUT = 12 V. Typical values are at TJ = 25°C, (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
POWER SUPPLY
VIN Input voltage range 2.9 23 V
VIN_UVLO VIN under voltage lockout threshold VIN  rising 2.8 2.9 V
VIN_UVLO VIN  falling 2.6 2.7 V
VIN_HYS VIN UVLO hysteresis 200 mV
IQ Quiescent current into VOUT pin IC enabled, no load, no switching
VIN =2.9V to 5.25V, VOUT = 25 V, VFB = VREF + 0.1 V		 70 100 µA
IQ Quiescent current into VOUT pin IC enabled, no load, no switching
VIN = 5.5 V to 23 V, VOUT = 25 V, VFB = VREF + 0.1 V		 2 8 µA
IQ Quiescent current into VIN pin IC enabled, no load, no switching
VIN =2.9V to 5.25V, VFB = VREF + 0.1 V		 1.5 2 µA
IQ Quiescent current into VIN pin IC enabled, no load, no switching
VIN = 5.5 V to 23 V, VFB = VREF + 0.1 V		 70 100 µA
VCC_UVLO VCC UVLO threshold VCC rising 2.75 V
VCC_HYS VCC UVLO hysteresis VCC hysteresis 160 mV
VCC VCC regulation IVCC = 4 mA, VOUT = 12 V 4.80 V
ISD Shutdown current into VIN pin IC disabled, VIN = 2.9 V to 23 V, EN = GND 1.25 µA
ISW_LKG Leakage current into SW IC disabled, VOUT = 0 V, SW = 25 V,TJ up
to 85°C		 2 uA
IVOUT_LKG Leakage current into VOUT IC disabled, VOUT = 25 V, SW = 0 V,TJ up
to 85°C		 2 µA
IFB_LKG Leakage current into FB IC disabled, TJ up to 85°C 16 nA
OUTPUT VOLTAGE
VOVP Output over-voltage protection threshold VIN  = 3.3 V, VOUT rising 26.5 27.5 28.6 V
VOVP_HYS Output over-voltage protection hysteresis VIN = 3.3 V, OVP threshold 0.9 V
VOLTAGE REFERENCE
VREF Reference Voltage at FB pin TJ = –40 to 125°C 0.985 1 1.015 V
POWER SWITCH
RDS(on) Low-side MOSFET on resistance VCC = 4.85 V 50 mΩ
RDS(on) High-side MOSFET on resistance VCC = 4.85 V 40 mΩ
CURRENT LIMIT
ILIM_SW Peak switching current limit FPWM RLIM = 14.4 kΩ 5.0 6.0 7.0 A
ILIM_SW Peak switching current limit Auto PFM RLIM = 14.4 kΩ 5.0 6.0 7.0 A
ILIM_SW Peak switching current limit FPWM RLIM = 57.6 kΩ 1.3 1.5 1.7 A
ILIM_SW Peak switching current limit Auto PFM RLIM = 57.6 kΩ 1.3 1.5 1.7 A
SWITCHING FREQUENCY
Fsw TPS61377 Switching frequency VIN=2.9V to 23V, VOUT = 4.5V to 25V 500 650 800 kHz
Fsw TPS613771 Switching frequency VIN=2.9V to 23V, VOUT = 4.5V to 25V 1000 1200 1400 kHz
TSS Soft-start time 4 ms
tOFF_min Minimum off time 120 ns
tON_min Minimum on time 75 ns
ERROR AMPLIFIER
ISINK COMP pin sink current 20 uA
ISOURCE COMP pin source current 20 uA
VCCLPH COMP pin high clamp voltage 1.78 V
VCCLPL COMP pin low clamp voltage 0.55 V
GmEA Error amplifier trans conductance 240 uS
LOGIC INTERFACE
VEN_H EN Logic high threshold 0.812 V
VEN_L EN Logic low threshold 0.36 V
VEN_L EN threshold hysteresis 120 mV
VUVLO UVLO rising threshold 0.788 0.813 0.835 V
IUVLO_HYS Sourcing current at the EN/UVLO pin 1.75 2 2.25 µA
VMODE_H MODE pins Logic high threshold 0.84 V
VMODE_L MODE  pins Logic Low threshold 0.36 V
RDOWN MODE pins internal pull down resistor 800 kΩ
THERMAL SHUTDOWN
tSD_R Thermal shutdown rising threshold TJ rising 150 °C
tSD_F Thermal shutdown falling threshold TJ falling 130 °C