SNVS084C December   2001  – July 2016 LM2590HV

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 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Electrical Characteristics - 3.3-V Version
    7. 6.7 Electrical Characteristics - 5-V Version
    8. 6.8 Electrical Characteristics - Adjustable Version
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Test Circuits
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Lockout
      2. 8.3.2 SHUTDOWN/SOFT-START
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown Mode
      2. 8.4.2 Active Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Feedforward Capacitor, CFF
      2. 9.1.2 Input Capacitor, CIN
      3. 9.1.3 Output Capacitor, COUT
      4. 9.1.4 Catch Diode
      5. 9.1.5 Inverting Regulator
    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 Procedure
          1. 9.2.2.1.1 Example 1: VIN ≤ 40 V, 5-V Version, VIN = 24 V, Output = 5 V at 1 A
          2. 9.2.2.1.2 Example 2: VIN > 40 V, 5-V Version, VIN = 48 V, Output = 5 V at 1.5 A
          3. 9.2.2.1.3 Example 3: VIN ≤ 40 V, Adjustable Version, VIN = 20 V, Output = 10 V at 2 A
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Examples
    3. 11.3 Thermal Considerations
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community 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

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Supply voltage, VIN 63 V
SD/SS pin input voltage(2) 6 V
Delay pin voltage(2) 1.5 V
Flag pin voltage –0.3 45 V
Feedback pin voltage –0.3 25 V
Output voltage to ground, steady-state –1 V
Power dissipation Internally limited
Lead temperature S package Vapor phase (60 s) 215 °C
Infrared (10 s) 245
T package, soldering (10 s) 260
Maximum junction temperature 150 °C
Storage temperature, 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) Voltage internally clamped. If clamp voltage is exceeded, limit current to a maximum of 1 mA.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
Supply voltage 4.5 60 V
TJ Temperature –40 125 °C

6.4 Thermal Information

THERMAL METRIC(1) LM2590HV UNIT
NDZ (TO-220) KTW (TO-263)
7 PINS 7 PINS
RθJA Junction-to-ambient thermal resistance See(2) 50 — °C/W
See(3) — 50
See(4) — 30
See(5) — 20
RθJC Junction-to-case thermal resistance 2 2 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report.
(2) Junction to ambient thermal resistance (no external heat sink) for the package mounted TO-220 package mounted vertically, with the leads soldered to a printed-circuit board with (1 oz.) copper area of approximately 1 in2.
(3) Junction to ambient thermal resistance with the TO-263 package tab soldered to a single sided printed-circuit board with 0.5 in2 of
(1 oz.) copper area.
(4) Junction to ambient thermal resistance with the TO-263 package tab soldered to a single sided printed-circuit board with 2.5 in2 of
(1 oz.) copper area.
(5) Junction to ambient thermal resistance with the TO-263 package tab soldered to a double sided printed circuit board with 3 in 2 of
(1 oz.) copper area on the LM2590HVS side of the board, and approximately 16 in2 of copper on the other side of the PCB. See Application Information in this data sheet.

6.5 Electrical Characteristics

TJ = 25°C, VIN = 12 V for the 3.3-V, 5-V, and adjustable version, and ILOAD = 500 mA (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN(1) TYP(2) MAX(1) UNIT
Ib Feedback bias current Adjustable version only,
VFB = 1.3 V		 TJ = 25°C 10 50 nA
TJ = –40°C to 125°C 100
fO Oscillator frequency(3) TJ = 25°C 127 150 173 kHz
TJ = –40°C to 125°C 110 173
VSAT Saturation voltage IOUT = 1 A(4)(5) 1.2 0.95 1.3 V
DC Max duty cycle (ON)(5) 100%
Min duty cycle (OFF)(6) 0%
ICLIM Switch current limit Peak current(4)(5) TJ = 25°C 1.3 1.9 2.8 A
TJ = –40°C to 125°C 1.2 3
IL Output leakage current VIN = 60 V(4)(6) Output = 0 V 50 µA
Output = −1 V 5 30 mA
IQ Operating quiescent current SD/SS pin open(6) 5 10 mA
ISTBY Standby quiescent current SD/SS pin = 0 V,
VIN = 60 V		 TJ = 25°C 90 200 µA
TJ = –40°C to 125°C 250
SHUTDOWN AND SOFT-START CONTROL (see Test Circuits)
VSD Shutdown threshold voltage TJ = 25°C 1.3 V
TJ = –40°C to 125°C Low (shutdown mode) 0.6
High (soft-start mode) 2
VSS Soft-start voltage VOUT = 20% of nominal output voltage 2 V
VOUT = 100% of nominal output voltage 3
ISD Shutdown current VSHUTDOWN = 0.5 V 5 10 µA
ISS Soft-start current VSoft-start = 2.5 V 1.5 5 µA
FLAG AND DELAY CONTROL (see Test Circuits)
Regulator dropout detector threshold voltage Low (flag ON) 92% 96% 98%
VFSAT Flag output saturation and voltage ISINK = 3 mA 0.7 0.3 1 V
IFL Flag output leakage current VFLAG = 60 V 0.3 µA
Delay pin threshold voltage Low (flag ON) 1.21 1.25 mV
High (flag OFF) and VOUT regulated 1.25 1.29
Delay pin source current VDELAY = 0.5 V 3 6 mV
Delay pin saturation Low (flag ON) TJ = 25°C 70 350 mV
TJ = –40°C to 125°C 400
(1) All limits specified at room temperature and at temperature extremes. All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
(2) Typical numbers are at 25°C and represent the most likely norm.
(3) The switching frequency is reduced when the second stage current limit is activated. The amount of reduction is determined by the severity of current overload.
(4) No diode, inductor or capacitor connected to output pin.
(5) Feedback pin removed from output and connected to 0 V to force the output transistor switch ON.
(6) Feedback pin removed from output and connected to 12 V for the 3.3-V, 5-V, and the ADJ version to force the output transistor switch OFF.

6.6 Electrical Characteristics – 3.3-V Version

TJ = 25°C (unless otherwise noted)(1)
PARAMETER TEST CONDITIONS MIN(2) TYP(3) MAX(2) UNIT
VOUT Output voltage 4.5 V ≤ VIN ≤ 60 V, 0.2 A ≤ ILOAD ≤ 1 A TJ = 25°C 3.168 3.3 3.432 V
TJ = –40°C to 125°C 3.135 3.465
η Efficiency VIN = 12 V, ILOAD = 1 A 77%
(1) External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM2590HV is used as shown in Test Circuits, system performance will be as shown in system parameters section of Electrical Characteristics.
(2) All limits specified at room temperature and at temperature extremes. All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
(3) Typical numbers are at 25°C and represent the most likely norm.

6.7 Electrical Characteristics – 5-V Version

TJ = 25°C (unless otherwise noted)(1)
PARAMETER TEST CONDITIONS MIN(2) TYP(3) MAX(2) UNIT
VOUT Output voltage 7 V ≤ VIN ≤ 60 V, 0.2 A ≤ ILOAD ≤ 1 A TJ = 25°C 4.8 5 5.2 V
TJ = –40°C to 125°C 4.75 5.25
η Efficiency VIN = 12 V, ILOAD = 1 A 82%
(1) External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM2590HV is used as shown in Test Circuits, system performance will be as shown in system parameters section of Electrical Characteristics.
(2) All limits specified at room temperature and at temperature extremes. All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
(3) Typical numbers are at 25°C and represent the most likely norm.

6.8 Electrical Characteristics – Adjustable Version

TJ = 25°C (unless otherwise noted)(1)
PARAMETER TEST CONDITIONS MIN(2) TYP(3) MAX(2) UNIT
VFB Feedback voltage 4.5 V ≤ VIN ≤ 60 V, 0.2 A ≤ ILOAD ≤ 1 A,
VOUT programmed for 3 V
(see Test Circuits)		 TJ = 25°C 1.193 1.23 1.267 V
TJ = –40°C to 125°C 1.18 1.28
η Efficiency VIN = 12 V, VOUT = 3 V, ILOAD = 1 A 76%
(1) External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM2590HV is used as shown in Test Circuits, system performance will be as shown in system parameters section of Electrical Characteristics.
(2) All limits specified at room temperature and at temperature extremes. All room temperature limits are 100% production tested. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
(3) Typical numbers are at 25°C and represent the most likely norm.
LM2590HV timing_dirgram_for_5V_snvs084.gif Figure 1. Timing Diagram for 5-V Output

6.9 Typical Characteristics

LM2590HV graph_01_snvs084.gif Figure 2. Normalized Output Voltage
LM2590HV graph_03_snvs084.gif Figure 4. Efficiency
LM2590HV graph_05_snvs084.gif Figure 6. Switch Current Limit
LM2590HV graph_07_snvs084.gif Figure 8. Operating Quiescent Current
LM2590HV graph_09_snvs084.gif Figure 10. Minimum Operating Supply Voltage
LM2590HV graph_11_snvs084.gif Figure 12. Flag Saturation Voltage
LM2590HV graph_13_snvs084.gif Figure 14. Soft-Start
LM2590HV graph_15_snvs084.gif Figure 16. Delay Pin Current
LM2590HV graph_17_snvs084.gif Figure 18. Shutdown/Soft-start Threshold Voltage
LM2590HV waveform_01_snvs084.gif
Horizontal Time Base: 2 µs/div.
VIN = 20 V, VOUT = 5 V, ILOAD = 1 A,
L = 52 µH, COUT = 100 µF, COUT ESR = 100 mΩ
Output Pin Voltage, 10 V/div.
Inductor Current, 0.5 A/div.
Output Ripple Voltage, 50 mV/div.
Figure 20. Continuous Mode Switching Waveforms
LM2590HV waveform_03_snvs084.gif
Horizontal Time Base: 50 µs/div.
VIN = 20 V, VOUT = 5 V, ILOAD = 250 mA,
L = 52 µH, COUT = 100 µF, COUT ESR = 100 mΩ
Output Voltage, 100 mV/div. (AC)
250-mA to 1-A Load Pulse
Figure 22. Load Transient Response
for Continuous Mode
LM2590HV graph_02_snvs084.gif Figure 3. Line Regulation
LM2590HV graph_04_snvs084.gif Figure 5. Switch Saturation Voltage
LM2590HV graph_06_snvs084.gif Figure 7. Dropout Voltage
LM2590HV graph_08_snvs084.gif Figure 9. Shutdown Quiescent Current
LM2590HV graph_10_snvs084.gif Figure 11. Feedback Pin Bias Current
LM2590HV graph_12_snvs084.gif Figure 13. Switching Frequency
LM2590HV graph_14_snvs084.gif Figure 15. Shutdown/Soft-Start Current
LM2590HV graph_16_snvs084.gif Figure 17. Soft-Start Response
LM2590HV graph_18_snvs084.gif Figure 19. Internal Gain-Phase Characteristics
LM2590HV waveform_02_snvs084.gif
Horizontal Time Base: 2 µs/div.
VIN = 20 V, VOUT = 5 V, ILOAD = 250 mA,
L = 52 µH, COUT = 150 µF, COUT ESR = 100 mΩ
Output Pin Voltage, 10 V/div.
Inductor Current, 0.25 A/div.
Output Ripple Voltage, 100 mV/div.
Figure 21. Discontinuous Mode Switching Waveforms
LM2590HV waveform_04_snvs084.gif
Horizontal Time Base: 200 µs/div.
VIN = 20 V, VOUT = 5 V, ILOAD = 250 mA to 1 A,
L = 15 µH, COUT = 150 µF, COUT ESR = 90 mΩ
Output Voltage, 100 mV/div. (AC)
250-mA to 1-A Load Pulse
Figure 23. Load Transient Response
for Discontinuous Mode