SLVSH13 August   2024 TPSM83102

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 Rating
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics 
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Undervoltage Lockout (UVLO)
      2. 7.3.2 Enable and Soft Start
      3. 7.3.3 Adjustable Output Voltage
      4. 7.3.4 Reverse Current Operation
      5. 7.3.5 Protection Features
        1. 7.3.5.1 Input Overvoltage Protection
        2. 7.3.5.2 Short Circuit Protection
        3. 7.3.5.3 Thermal Shutdown
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
      1. 7.5.1 Serial Interface Description
      2. 7.5.2 Standard-, Fast-, and Fast-Mode Plus Protocol
      3. 7.5.3 I2C Update Sequence
    6. 7.6 Register Map
      1. 7.6.1 Register Description
        1. 7.6.1.1 Register Map
        2. 7.6.1.2 Register CONTROL1 (Register address: 0x02; Default: 0x08)
        3. 7.6.1.3 Register VOUT (Register address: 0x03; Default: 0x5C)
        4. 7.6.1.4 Register CONTROL2 (Register address: 0x05; Default: 0x45)
  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 Custom Design with WEBENCH Tools
        2. 8.2.2.2 Output Capacitor Selection
        3. 8.2.2.3 Input Capacitor Selection
        4. 8.2.2.4 Setting the Output Voltage
      3. 8.2.3 Application Curves
  10. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
      2. 10.1.2 Development Support
        1. 10.1.2.1 Custom Design with WEBENCH Tools
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Tape and Reel Information
    2. 12.2 Mechanical Data

Package Options

Mechanical Data (Package|Pins)
  • SIU|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.5 Electrical Characteristics 

Over operating junction temperature range and recommended supply voltage range (unless otherwise noted). Typical values are at VI = 3.8 V , VO  = 3.3 V and TJ = 25°C (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY
ISD Shutdown current into VIN VI = 3.8 V, V(EN) = 0 V TJ = 25°C 0.5 0.9 μA
IQ Quiescent current into VIN VI = 2.2 V, VO = 3.3 V, V(EN) = 2.2 V, no switching 0.15 6.1 μA
IQ Quiescent current into VOUT VI = 2.2 V, VO = 3.3 V, V(EN) = 2.2 V, no switching 8 μA
VIT+ Positive-going UVLO threshold voltage 1.5 1.55 1.599 V
VIT– Negative-going UVLO threshold voltage During start-up 1.4 1.45 1.499 V
Vhys UVLO threshold voltage hysteresis 99   mV
VI(POR)T+ Positive-going POR threshold voltage maximum of VI or VO 1.25 1.45 1.65 V
VI(POR)T- Negative-going POR threshold voltage 1.22 1.43 1.6 V
I/O SIGNALS
VT+ Positive-going threshold voltage EN, MODE 0.77 0.98 1.2 V
VT- Negative-going threshold voltage EN, MODE 0.5 0.66 0.76 V
Vhys Hysteresis voltage EN, MODE 300 mV
IIH High-level input current (EN, MODE) V(EN) = V(MODE) = 1.5 V,
no pullup resistor		 ±0.01 ±0.25 µA
IIL Low-level input current (EN, MODE) V(EN) = V(MODE) = 0 V,
 		 ±0.01 ±0.1 µA
Input bias current (EN, MODE) V(EN) = 5.5 V ±0.01 ±0.3 µA
POWER SWITCH
rDS(on) On-state resistance Q1 VI = 3.8 V, VO = 3.3 V,
test current = 0.2 A		 45 mΩ
Q2 50 mΩ
Q3 50 mΩ
Q4 85 mΩ
CURRENT LIMIT
IL(PEAK) Switch peak current limit (1) Q1 Vin=3.8V, VO =  3.3 V  Output sourcing current 2.6 3 3.35 A
PFM mode entry threshold (peak) current (1) IO falling 145 mA
OUTPUT
CONTROL[FEEDBACK PIN]
PROTECTION FEATURES
VT+(OVP) Positive-going OVP threshold
voltage		 5.55 5.75 5.95 V
VT+(IVP) Positive-going IVP threshold
voltage		 5.55 5.75 5.95 V
TIMING PARAMETERS
td(EN) Delay between a rising edge on the EN pin and the start of the output voltage ramp 0.87 1.5 ms
td(ramp) Soft-start ramp time 6.42 7.55 8.68 ms
fSW Switching frequency 1.8 2 2.2 MHz
(1) Current limit production test are performed under DC conditions. The current limit in operation is somewhat higher and depending on propagation delay and the applied external components