SLVSCQ7 April   2015 TPS61046

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  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 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 Under-Voltage Lockout
      2. 8.3.2 Enable and Disable
      3. 8.3.3 Soft Start
      4. 8.3.4 Over-voltage Protection
      5. 8.3.5 Output Short Circuit Protection
      6. 8.3.6 Thermal Shutdown
      7. 8.3.7 Device Functional Modes
        1. 8.3.7.1 PWM Mode
      8. 8.3.8 Power Save Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application - 12-V Output Boost Converter
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Programming the Output Voltage
        2. 9.2.2.2 Inductor Selection
        3. 9.2.2.3 Input and Output Capacitor Selection
      3. 9.2.3 Application Performance Curves
    3. 9.3 System Examples
      1. 9.3.1 Fixed 12-V Output Voltage with Three External Components
  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 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

7 Specifications

7.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted) (1)
MIN MAX UNIT
Voltage range at terminals (2) VIN, EN, FB – 0.3 6 V
SW, VOUT –0.3 32 V
Operating junction temperature range, TJ –40 150 °C
Storage temperature range, Tstg –65 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.

7.2 ESD Ratings

VALUE UNIT
V(ESD)(1) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(2) ±2000 V
Charged device model (CDM), per JEDEC specification JESD22-C101, all pins(3) ±500 V
(1) Electrostatic discharge (ESD) to measure device sensitivity and immunity to damage caused by assembly line electrostatic discharges in to the device.
(2) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(3) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

7.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN TYP MAX UNIT
VIN Input voltage range 1.8 5.5 V
VOUT Output voltage range 4.5 28 V
L Effective inductance range 1.0×0.7 10 22×1.3 µH
CIN Effective input capacitance range 0.22 1.0 µF
COUT Effective output capacitance range 0.22 1.0 10 µF
TJ Operating junction temperature –40 125 °C

7.4 Thermal Information

THERMAL METRIC(1) TPS61046 UNIT
YFF (WCSP)
6 BALLS
RθJA Junction-to-ambient thermal resistance 135.4 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 1.6
RθJB Junction-to-board thermal resistance 22.3
ψJT Junction-to-top characterization parameter 5.6
ψJB Junction-to-board characterization parameter 22.3
RθJC(bot) Junction-to-case (bottom) thermal resistance n/a
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

7.5 Electrical Characteristics

TJ = –40°C to 125°C, VIN = 3.6 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 1.8 5.5 V
VIN_UVLO Under voltage lockout threshold VIN rising 1.75 1.8 V
VIN falling 1.55 1.6
VIN_HYS VIN UVLO hysteresis 200 mV
IQ_VIN Quiescent current into VIN pin IC enabled, no load, no switching, VIN = 1.8 V to 5.5 V, VOUT = 12 V 110 200 µA
ISD Shutdown current into VIN pin IC disabled, VIN = 1.8 V to 5.5 V, TJ up to 85°C 0.1 0.8 µA
IC disabled, VIN = 1.8 V to 5.5 V, TJ up to 60°C 0.5 µA
OUTPUT
VOUT Output voltage range 4.5 28 V
VOUT_12V 12-V output voltage accuracy FB pin connected to VIN pin, TJ=0°C to 125°C 11.7 12 12.3 V
VREF Feedback voltage PWM mode, TJ=0°C to 125°C 0.779 0.795 0.811 V
PFM mode, TJ=0°C to 125°C 0.803 V
VOVP Output overvoltage protection threshold 28 29.2 30.4 V
VOVP_HYS Over voltage protection hysteresis 0.8 V
IFB_LKG Leakage current into FB pin 200 nA
ISW_LKG Leakage current into SW pin IC disabled, TJ up to 85°C 500 nA
POWER SWITCH
RDS(on) Isolation MOSFET on resistance VOUT = 12 V 850 mΩ
Low-side MOSFET on resistance VOUT = 12 V 450
fSW Switching frequency VIN = 3.6 V, VOUT = 12 V, PWM mode 850 1050 1250 kHz
tON_min Minimal switch on time 150 250 ns
ILIM_SW Peak switch current limit VIN = 3.6 V, VOUT = 12 V 600 900 1200 mA
ILIM_CHG Pre-charge current VIN = 3.6 V, VOUT = 0 V 30 50 mA
tSTARTUP Startup time VOUT from VIN to 12 V, COUT_effective = 2.2 µF, IOUT = 0 A 2 5 ms
LOGIC INTERFACE
VEN_H EN Logic high threshold 1 V
VEN_L EN Logic Low threshold 0.4 V
PROTECTION
TSD Thermal shutdown threshold TJ rising 150 °C
TSD_HYS Thermal shutdown hysteresis TJ falling below TSD 20 °C

7.6 Typical Characteristics

VIN = 3.6 V, VOUT = 12 V, TJ = –40°C to 125°C, unless otherwise noted.
TPS61046 D001_SLVSCQ7.gif
VIN = 1.8 V, 3.0 V, 3.6 V, 4.2 V, VOUT = 12 V
Figure 1. Efficiency vs Output Current
TPS61046 D003_SLVSCQ7.gif
VIN = 3.6 V, VOUT = 12 V, FB pin connected to VIN pin
Figure 3. 12-V Fixed Output Voltage vs Temperature
TPS61046 D005_SLVSCQ7.gif
VIN = 3.6 V, VOUT = 12 V, No switching
Figure 5. Quiescent Current vs Temperature
TPS61046 D007_SLVSCQ7.gif
VIN = 3.6 V
Figure 7. Shutdown Current vs Temperature
TPS61046 D009_SLVSCQ7.gif
VIN = 1.8 V ~ 6 V, VOUT = 12 V
Figure 9. Current Limit vs Temperature
TPS61046 D002_SLVSCQ7.gif
VIN = 3.6 V, VOUT = 5 V, 12 V, 24 V
Figure 2. Efficiency vs Output Current
TPS61046 D004_SLVSCQ7.gif
VIN = 3.6 V, VOUT = 12 V
Figure 4. Reference Voltage vs Temperature
TPS61046 D006_SLVSCQ7.gif
VIN = 1.8 V ~ 6 V, VOUT = 12 V, No switching
Figure 6. Quiescent Current vs Input Voltage
TPS61046 D008_SLVSCQ7.gif
VIN = 3.6 V, VOUT = 12 V
Figure 8. Current Limit vs Temperature