SLVS670L June   2006  – May 2018 TPS65023 , TPS65023B

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Simplified Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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  Electrical Characteristics: Supply Pins VCC, VINDCDC1, VINDCDC2, VINDCDC3
    7. 6.7  Electrical Characteristics: Supply Pins VBACKUP, VSYSIN, VRTC, VINLDO
    8. 6.8  Electrical Characteristics: VDCDC1 Step-Down Converter
    9. 6.9  Electrical Characteristics: VDCDC2 Step-Down Converter
    10. 6.10 Electrical Characteristics: VDCDC3 Step-Down Converter
    11. 6.11 I2C Timing Requirements for TPS65023B
    12. 6.12 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  VRTC Output and Operation With or Without Backup Battery
      2. 7.3.2  Step-Down Converters, VDCDC1, VDCDC2, and VDCDC3
      3. 7.3.3  Power Save Mode Operation
      4. 7.3.4  Low Ripple Mode
      5. 7.3.5  Soft-Start
      6. 7.3.6  100% Duty Cycle Low Dropout Operation
      7. 7.3.7  Active Discharge When Disabled
      8. 7.3.8  Power-Good Monitoring
      9. 7.3.9  Low-Dropout Voltage Regulators
      10. 7.3.10 Undervoltage Lockout
      11. 7.3.11 Power-Up Sequencing
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
      1. 7.5.1 System Reset + Control Signals
        1. 7.5.1.1 DEFLDO1 and DEFLDO2
        2. 7.5.1.2 Interrupt Management and the INT Pin
      2. 7.5.2 Serial Interface
    6. 7.6 Register Maps
      1. 7.6.1 VERSION Register Address: 00h (Read Only)
      2. 7.6.2 PGOODZ Register Address: 01h (Read Only)
      3. 7.6.3 MASK Register Address: 02h (Read and Write), Default Value: C0h
      4. 7.6.4 REG_CTRL Register Address: 03h (Read and Write), Default Value: FFh
      5. 7.6.5 CON_CTRL Register Address: 04h (Read and Write), Default Value: B1h
      6. 7.6.6 CON_CTRL2 Register Address: 05h (Read and Write), Default Value: 40h
      7. 7.6.7 DEFCORE Register Address: 06h (Read and Write), Default Value: 14h/1Eh
      8. 7.6.8 DEFSLEW Register Address: 07h (Read and Write), Default Value: 06h
      9. 7.6.9 LDO_CTRL Register Address: 08h (Read and Write), Default Value: Set with DEFLDO1 and DEFLDO2
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Voltage Connection
      2. 8.1.2 Unused Regulators
      3. 8.1.3 Reset Condition of DCDC1
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Inductor Selection for the DC-DC Converters
        2. 8.2.2.2 Output Capacitor Selection
        3. 8.2.2.3 Input Capacitor Selection
        4. 8.2.2.4 Output Voltage Selection
        5. 8.2.2.5 VRTC Output
        6. 8.2.2.6 LDO1 and LDO2
        7. 8.2.2.7 TRESPWRON
        8. 8.2.2.8 VCC Filter
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Requirements for Supply Voltages Below 3.0 V
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Related Links
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RSB|40
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.10 Electrical Characteristics: VDCDC3 Step-Down Converter

VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, TA = –40°C to 85°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT
VI Input voltage range, VINDCDC3 2.5 6 V
IO Maximum output current DEFDCDC3 = GND 1000 mA
VINDCDC3 = 3.6 V;
3.3V - 1% ≤ VDCDC3  ≤ 3.3V + 1%		 525
I(SD) Shutdown supply current in VINDCDC3 DCDC3_EN = GND 0.1 1 μA
rDS(on) P-channel MOSFET on-resistance VINDCDC3 = V(GS) = 3.6 V 310 698 mΩ
Ilkg P-channel leakage current VINDCDC3 = 6 V 0.1 2 μA
rDS(on) N-channel MOSFET on-resistance VINDCDC3 = V(GS) = 3.6 V 220 503 mΩ
Ilkg N-channel leakage current V(DS) = 6 V 7 10 μA
Forward current limit (P-channel and N-channel) 2.5 V < VINDCDC3 < 6 V 1.28 1.49 1.69 A
fS Oscillator frequency 1.95 2.25 2.55 MHz
Fixed output voltage FPWMDCDC3=0 VDCDC3 = 1.8 V VINDCDC3 = 2.5 V to 6 V;
0 mA ≤ IO  ≤ 1 A		 –2% 2%
VDCDC3 = 3.3 V VINDCDC3 = 3.6 V to 6 V;
0 mA ≤ IO  ≤ 1 A		 –1% 1%
Fixed output voltage FPWMDCDC3=1 VDCDC3 = 1.8 V VINDCDC3 = 2.5 V to 6 V;
0 mA ≤ IO  ≤ 1 A		 –2% 2%
VDCDC3 = 3.3 V VINDCDC3 = 3.6 V to 6 V;
0 mA ≤ IO  ≤ 1 A		 –1% 1%
Adjustable output voltage with resistor divider at DEFDCDC3 FPWMDCDC3=0 VINDCDC3 = VDCDC3 + 0.5 V (min 2.5 V) to
6 V; 0 mA ≤ IO  ≤ 800 mA		 –2% 2%
Adjustable output voltage with resistor divider at DEFDCDC3; FPWMDCDC3=1 VINDCDC3 = VDCDC3 + 0.5 V (min 2.5 V) to
6 V; 0 mA ≤ IO  ≤ 800 mA		 –1% 1%
Line Regulation VINDCDC3 = VDCDC3 + 0.3 V (min. 2.5 V) to
6 V; IO = 10 mA		 0% V
Load Regulation IO = 10 mA to 1000 mA 0.25% A
tStart Start-up time Time from active EN to start switching 145 175 200 µs
tRamp VOUT ramp-up time Time to ramp from 5% to 95% of VOUT 400 750 1000 μs
Internal resistance from L3 to GND 1 MΩ
VDCDC3 discharge resistance DCDC3 discharge =1 300 Ω
(1) Typical values are at TA = 25°C, unless otherwise noted.