Electronic Components Datasheet Search |
|
TPS72516DCQRG4 Datasheet(PDF) 9 Page - Texas Instruments |
|
TPS72516DCQRG4 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 29 page V O + V ref 1 ) R1 R2 R1 + V O V ref * 1 R2 V O V I OUT FB R1 R2 GND EN IN TPS72501 1 mF C O V =1.22V ´ O 1+ R1 R2 TPS72501 TPS72515, TPS72516 TPS72518, TPS72525 www.ti.com SLVS341E – MAY 2002 – REVISED JUNE 2010 APPLICATION INFORMATION The TPS725xx family of low-dropout (LDO) regulators has numerous features that make it applicable to a wide range of applications. The family operates with very low input voltage ( ≥1.8 V) and low dropout voltage (typically 200 mV at full load), making it an efficient stand-alone power supply or post regulator for battery or switch mode power supplies. Both the active low RESET and 1-A output current make the TPS725xx family ideal for powering processor and FPGA supplies. The TPS725xx family also has low output noise (typically 150 µVRMS with 10-µF output capacitor), making it ideal for use in telecom equipment. External Capacitor Requirements A 1-µF or larger ceramic input bypass capacitor, connected between IN and GND and located close to the TPS725xx, is required for stability. To improve transient response, noise rejection, and ripple rejection, an additional 10-µF or larger, low ESR capacitor is recommended. A higher-value, low ESR input capacitor may be necessary if large, fast-rise-time load transients are anticipated and the device is located several inches from the power source, especially if the minimum input voltage of 1.8 V is used. Although an output capacitor is not required for stability, transient response and output noise are improved with a 10-µF output capacitor. Programming the TPS72501 Adjustable LDO Regulator The output voltage of the TPS72501 adjustable regulator is programmed using an external resistor divider as shown in Figure 18. The output voltage is calculated using: (1) Where: • VFB = VREF = 1.22 V typical (see the electrical characteristics for VREF range) Resistors R1 and R2 should be chosen for approximately 10-µA divider current. Lower value resistors offer no inherent advantage and waste more power. Higher values should be avoided as leakage currents at FB increase the output voltage error. The recommended design procedure is to choose R2 = 120 k Ω to set the divider current at 10 µA and then calculate R1 using: (2) Figure 18. TPS72501 Adjustable Typical Application Diagram Copyright © 2002–2010, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Link(s): TPS72501 TPS72515 TPS72516 TPS72518 TPS72525 |
Similar Part No. - TPS72516DCQRG4 |
|
Similar Description - TPS72516DCQRG4 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | 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 |