 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LM5145 Datasheet(PDF) 7 Page - Texas Instruments |
|
|
|||||||||||||||||||||||||||||
LM5145 Datasheet(HTML) 7 Page - Texas Instruments |
|
|
7 / 60 page  5.4 Thermal Information THERMAL METRIC(1) LM25139 UNIT RGT (VQFN) 16 PINS RθJA Junction-to-ambient thermal resistance 55.2 °C/W RθJC(top) Junction-to-case (top) thermal resistance 62.8 °C/W RθJB Junction-to-board thermal resistance 29.9 °C/W ψJT Junction-to-top characterization parameter 3.5 °C/W ψJB Junction-to-board characterization parameter 29.9 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 14.3 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application note. 5.5 Electrical Characteristics TJ = –40°C to 150°C. Typical values are at TJ = 25°C and VIN = 12V (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT SUPPLY (VIN) IQ-VIN1 VIN shutdown current VEN = 0V 2.3 4 µA IQ-VIN2 VIN standby current Non-switching, 0.5V ≤ VEN ≤ 1V 30 48 µA ISLEEP1 Sleep current, 3.3V VEN = 5V, VVOUT = 3.3V, in regulation, no load, not switching, VFPWM/SYNC = 0V 10 18 µA ISLEEP2 Sleep current, 5V VEN = 5V, VVOUT = 5V, in regulation, no-load, not switching, VFPWM/SYNC = 0V 11 20 µA PRECISION ENABLE (EN) VSDN Shutdown to standby threshold VEN rising 0.55 V VEN-HIGH Enable voltage rising threshold VEN rising, enable switching 0.95 1.0 1.05 V IEN-HYS Enable hysteresis VEN = 1.1V –14 –11 –8 µA INTERNAL LDO (VCC) VVCC-REG VCC regulation voltage IVCC = 0mA to 90mA 4.7 5 5.3 V VVCC-UVLO VCC UVLO rising threshold 3.68 3.8 3.9 V VVCC-HYST VCC UVLO hysteresis 300 mV IVCC-REG Internal LDO short-circuit current limit 210 mA REFERENCE VOLTAGE (FB) VREF Regulated FB voltage 792 800 808 mV OUTPUT VOLTAGE (VOUT) VOUT-3.3V–INT 3.3V output voltage setpoint RFB = 0Ω, VIN = 4V to 42V 3.26 3.3 3.33 V VOUT-5V–INT 5V output voltage setpoint RFB = 24.9kΩ, VIN = 5.5V to 42V 4.93 5.0 5.05 V ERROR AMPLIFIER (COMP) gm EA transconductance 1.1 mS IFB Error amplifier input bias current 100 nA VCOMP-CLAMP=MAX COMP clamp maximum voltage 2.1 V ICOMP-SRC EA source current VCOMP = 1V, VFB = 0.68V 115 µA ICOMP-SINK EA sink current VCOMP = 1V, VFB = 0.92V 115 µA DUAL RANDOM SPREAD SPECTURM (DRSS) fm Modulation frequency 7.2 16.6 kHz ΔfC1 Low-frequency spread spectrum modulation range 1 LM25139D5QRGTRQ1 ±5 % ΔfC2 Low-frequency spread spectrum modulation range 2 LM25139QRGTRQ1 ±10 % FORCED PWM (FPWM/SYNC) VFPWM-HI FPWM high detection threshold 1.2 V www.ti.com LM25139 SLVSJ80 – OCTOBER 2025 Copyright © 2025 Texas Instruments Incorporated Submit Document Feedback 7 Product Folder Links: LM25139 |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
