SLVSDH5B June   2016  – March 2021 TLV627432

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  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 Timing Requirements
    7. 7.7 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 DCS-Control™
      2. 8.3.2 Power Save Mode Operation
      3. 8.3.3 Output Voltage Selection
      4. 8.3.4 Output Voltage Discharge of the Buck Converter
      5. 8.3.5 Undervoltage Lockout UVLO
      6. 8.3.6 Short circuit protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Shutdown
      2. 8.4.2 Device Start-up and Softstart
      3. 8.4.3 Automatic Transition Into No Ripple 100% Mode
  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 Inductor Selection
        2. 9.2.2.2 Output Capacitor Selection
        3. 9.2.2.3 Input Capacitor Selection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

7.5 Electrical Characteristics

VIN = 3.6V, TA = –40°C to 85°C typical values are at TA = 25°C (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY
IQ Operating quiescent current EN = VIN, IOUT = 0µA, VOUT = 1.8V, device not switching 360 1800 nA
EN = VIN, IOUT = 0mA, VOUT = 1.8V , device switching 460
ISD Shutdown current EN = GND, shutdown current into VIN 70 1000 nA
VTH_ UVLO+ Undervoltage lockout threshold Rising VIN 2.075 2.15 V
VTH_UVLO- Falling VIN 1.925 2
INPUTS (EN, VSEL1-3)
VIH TH High level input threshold 2.2V ≤ VIN ≤ 5.5V 1.1 V
VIL TH Low level input threshold 2.2V ≤ VIN ≤ 5.5V 0.4 V
IIN Input bias Current 10 25 nA
POWER SWITCHES
RDS(ON) High side MOSFET on-resistance IOUT = 50mA 0.45 1.12 Ω
Low Side MOSFET on-resistance 0.22 0.65
ILIMF High side MOSFET switch current limit 3.0V ≤ VIN ≤ 5.5V 590 650 800 mA
Low side MOSFET switch current limit 650
OUTPUT VOLTAGE DISCHARGE
RDSCH_VOS MOSFET on-resistance EN = GND, IVOS = -10mA into VOS pin 30 65 Ω
IIN_VOS Bias current into VOS pin EN = VIN, VOUT = 2V 40 1010 nA
AUTO 100% MODE TRANSITION
VTH_100+ Auto 100% Mode leave detection threshold (1) Rising VIN,100% Mode is left with VIN = VOUT + VTH_100+ 150 250 350 mV
VTH_100- Auto 100% Mode enter detection threshold (1) Falling VIN, 100% Mode is entered with VIN = VOUT + VTH_100- 85 200 290
OUTPUT
ILIM_softstart High side softstart switch current limit EN=low to high 80 150 200 mA
Low side softstart switch current limit 150
VOUT Output voltage range Output voltages are selected with pins VSEL 1 - 3 1.2 3.3 V
Output voltage accuracy IOUT = 10mA, VOUT = 1.8V -2.5 0% 2.5
IOUT = 100mA, VOUT = 1.8V –2 0% 2
DC output voltage load regulation VOUT = 1.8V 0.001 %/mA
DC output voltage line regulation VOUT = 1.8V, IOUT = 100mA, 2.5V ≤ VIN ≤ 5.0V 0 %/V
(1) VIN is compared to the programmed output voltage (VOUT). When VIN–VOUT falls below VTH_100- the device enters 100% Mode by turning the high side MOSFET on. The 100% Mode is exited when VIN–VOUT exceeds VTH_100+ and the device starts switching. The hysteresis for the 100% Mode detection threshold VTH_100+ - VTH_100- will always be positive and will be approximately 50 mV(typ)