SLUSCV7A July   2017  – August 2017 TPSM84203 , TPSM84205 , TPSM84212

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Recommended Operating Conditions
    3. 6.3 ESD Ratings
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics (VOUT = 3.3 V)
    8. 6.8 Typical Characteristics (VOUT = 5 V)
    9. 6.9 Typical Characteristics (VOUT = 12 V)
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Capacitors
      2. 7.3.2 Output Capacitors
      3. 7.3.3 Drop-Out Voltage
      4. 7.3.4 Internal Soft-Start
      5. 7.3.5 Safe Startup into Pre-Biased Outputs
      6. 7.3.6 Over-Current Protection
      7. 7.3.7 Output Over-Voltage Protection
      8. 7.3.8 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Eco-mode Operation
  8. 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 Input and Output Capacitors
      3. 8.2.3 Application Curves
        1. 8.2.3.1 EMI
  9. 9 Power Supply Recommendations
  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 Development Support
        1. 11.1.1.1 Custom Design With WEBENCH® Tools
    2. 11.2 Related Links
    3. 11.3 Receiving Notification of Documentation Updates
    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

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

6 Specifications

6.1 Absolute Maximum Ratings

Over operating free-air temperature range (unless otherwise noted)(1)
PARAMETER MIN MAX UNIT
Input Voltage –0.3 30 V
Output Voltage TPSM84203 –0.3 3.9 V
TPSM84205 –0.3 5.7 V
TPSM84212 –0.3 13.0 V
Mechanical Shock Mil-STD-883D, Method 2002.3, 1msec, 1/2 sine, mounted 1500 G
Mechanical Vibration Mil-STD-883D, Method 2007.2, 20-2000Hz 10 G
Operating IC Junction Temperature range, TJ (2) –40 125 °C
Operating Ambient Temperature range, TA (2) –40 85 °C
Storage temperature, Tstg –60 150 °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) The ambient temperature is the air temperature of the surrounding environment. The junction temperature is the temperature of the internal power IC when the device is powered. Operating below the maximum ambient temperature, as shown in the safe operating area (SOA) curves, ensures that the maximum junction temperature of any component inside the module is never exceeded.

6.2 Recommended Operating Conditions

Over operating free-air temperature range (unless otherwise noted)
PARAMETER MIN MAX UNIT
VIN Input voltage TPSM84203 4.5 28 V
TPSM84205 7 28 V
TPSM84212 14.5 28 V
IOUT Output current 0 1.5 A
TA Operating ambient temperature range(1) –40 85 °C
TJ Operating junction temperature range(1) –40 125 °C
(1) The ambient temperature is the air temperature of the surrounding environment. The junction temperature is the temperature of the internal power IC when the device is powered. Operating below the maximum ambient temperature, as shown in the safe operating area (SOA) curves, ensures that the maximum junction temperature of any component inside the module is never exceeded.

6.3 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2500 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±1500
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.4 Thermal Information

THERMAL METRIC(1) TPSM842xx UNIT
EAB
3 PINS
RθJA Junction-to-ambient thermal resistance (2) 56 °C/W
ψJT Junction-to-top characterization parameter (3) 0.9 °C/W
ψJB Junction-to-board characterization parameter (4) 1.7 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics paper.
(2) The junction-to-ambient thermal resistance, RθJA, applies to devices soldered directly to a 50 mm × 50 mm double-sided PCB with 2 oz. copper and natural convection cooling. Additional airflow reduces RθJA.
(3) The junction-to-top characterization parameter, ψJT, estimates the junction temperature, TJ, of a device in a real system, using a procedure described in JESD51-2A (sections 6 and 7). TJ = ψJT × Pdis + TT; where Pdis is the power dissipated in the device and TT is the temperature of the top of the controller IC.
(4) The junction-to-board characterization parameter, ψJB, estimates the junction temperature, TJ, of a device in a real system, using a procedure described in JESD51-2A (sections 6 and 7). TJ = ψJB × Pdis + TB; where Pdis is the power dissipated in the device and TB is the temperature of the module board 1 mm from the controller IC.

6.5 Electrical Characteristics

Over -40°C to +85°C free-air temperature range, VIN = 24 V, IOUT = IOUT max, FSW = 400 kHz, CIN = 0.1µF, 50V ceramic; 10µF, 50V ceramic; 100µF, 35V electrolytic, and COUT = 2 x 47µF, 16V 1210 ceramic (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INPUT VOLTAGE (VIN)
VIN Input voltage range Over VOUT range TPSM84203 4.5(1) 28 V
TPSM84205 7(1) 28 V
TPSM84212 14.5(1) 28 V
VIN_UVLO VIN under voltage lock out VIN increasing 4.1 4.4 V
VIN decreasing 3.3 3.6 V
OUTPUT VOLTAGE (VOUT)
VOUT Output voltage Over IOUT range TPSM84203 3.3 V
TPSM84205 5.0 V
TPSM84212 12.0 V
Set-point voltage tolerance TA = 25°C, IOUT = 0 A –3% +3%
Temperature variation(2) –40°C ≤ TA ≤ 85°C, IOUT = 0 A 0.4%
Line regulation Over VIN range, IOUT = 1 A 0.4%
Load regulation Over IOUT range 0.5%
Output voltage ripple 20 MHz bandwidth, peak-to-peak, IOUT > 500 mA 15 mV
OUTPUT CURRENT
IOUT Output current See SOA graph for derating over temperature. 0 1.5 A
Overcurrent threshold 3.1 A
PERFORMANCE
ƞ Efficiency(3) VIN = 5 V, IOUT = 1 A VOUT = 3.3 V 92%
VIN = 12 V, IOUT = 1 A VOUT = 3.3 V 91%
VOUT = 5.0 V 92%
VIN = 24 V, IOUT = 1 A VOUT = 3.3 V 87%
VOUT = 5.0 V 90%
VOUT = 12.0 V 94%
Transient response(2) 1 A/µs load step,
25% to 75% IOUT(max),
COUT= 94 µF		 VOUT over/undershoot 4% VOUT
Recovery time 100 µs
SOFT START
TSS Internal soft start time(2) 5 ms
THERMAL SHUTDOWN
Rising threshold(2) 165 °C
Hysteresis(2) 10 °C
CAPACITANCE
CIN External input capacitance Ceramic type 10 µF
Non-ceramic type 0 100 µF
COUT External output capacitance Ceramic type TPSM84203 94 470 µF
TPSM84205
TPSM84212 47 470 µF
Total output capacitance 0 500(4) µF
Equivalent series resistance (ESR) 35 mΩ
(1) The minimum input voltage is the lowest ensured voltage that will produce the nominal output voltage. See the Drop-Out Voltage section for information on drop-out voltage.
(2) Specified by design. Not production tested.
(3) See the efficiency graphs in the Typical Characteristics section for efficiency over the entire load range.
(4) The maximum output capacitance of 500 μF includes the combination of both ceramic and non-ceramic capacitors.

6.6 Switching Characteristics

Over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
FSW Switching frequency 290 400 510 kHz

6.7 Typical Characteristics (VOUT = 3.3 V)

Typical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the device. Safe operating area curves were measured using a Texas Instruments evaluation module (EVM).
TPSM84203 TPSM84205 TPSM84212 33Vefficiency2.gif
VOUT = 3.3 V
Figure 1. Efficiency vs Output Current
TPSM84203 TPSM84205 TPSM84212 33ripple2.gif
VOUT = 3.3 V COUT = 2x 47 µF
Figure 3. Ripple Voltage vs Output Current
TPSM84203 TPSM84205 TPSM84212 SOA24Vto3_3V.gif
VOUT = 3.3 V VIN = 24 V
Figure 5. Safe Operating Area
TPSM84203 TPSM84205 TPSM84212 33pdiss2.gif
VOUT = 3.3 V
Figure 2. Power Dissipation vs Output Current
TPSM84203 TPSM84205 TPSM84212 SOA3_3Vflat.gif
VOUT = 3.3 V VIN ≤ 15 V
Figure 4. Safe Operating Area

6.8 Typical Characteristics (VOUT = 5 V)

Typical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the device. Safe operating area curves were measured using a Texas Instruments evaluation module (EVM).
TPSM84203 TPSM84205 TPSM84212 5Vefficiency2.gif
1.
VOUT = 5 V
Figure 6. Efficiency vs Output Current
TPSM84203 TPSM84205 TPSM84212 5Vripple.gif
VOUT = 5 V COUT = 2x 47 µF
Figure 8. Ripple Voltage vs Output Current
TPSM84203 TPSM84205 TPSM84212 SOA24Vto5V.gif
1.
VOUT = 5 V VIN = 24 V
Figure 10. Safe Operating Area
TPSM84203 TPSM84205 TPSM84212 5VPdis.gif
1.
VOUT = 5 V
Figure 7. Power Dissipation vs Output Current
TPSM84203 TPSM84205 TPSM84212 SOA5Vflat.gif
1.
VOUT = 5 V VIN ≤ 15 V
Figure 9. Safe Operating Area

6.9 Typical Characteristics (VOUT = 12 V)

Typical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the device. Safe operating area curves were measured using a Texas Instruments evaluation module (EVM).
TPSM84203 TPSM84205 TPSM84212 12Veff2.gif
1.
VOUT = 12 V
Figure 11. Efficiency vs Output Current
TPSM84203 TPSM84205 TPSM84212 12Vripple2.gif
VOUT = 12 V COUT = 1x 47 µF
Figure 13. Ripple Voltage vs Output Current
TPSM84203 TPSM84205 TPSM84212 SOA24Vto12V.gif
1.
VOUT = 12 V VIN = 24 V
Figure 15. Safe Operating Area
TPSM84203 TPSM84205 TPSM84212 12Vpdis2.gif
1.
VOUT = 12 V
Figure 12. Power Dissipation vs Output Current
TPSM84203 TPSM84205 TPSM84212 SOA15Vto12V.gif
1.
VOUT = 12 V VIN ≤ 15 V
Figure 14. Safe Operating Area