TPS62261DRVT

Sample & Buy Product Folder Support & Community Tools & Software Technical Documents Reference Design TPS62260, TPS62261, TPS62262, TPS62263 SLVS763E – JUNE 2007 – REVISED JULY 2015 TPS6226x 2.25-MHz 600-mA Step Down Converter in 2 x 2 WSON and SOT Package 1 Features • • • 1 • • • • • • • • High Efficiency Step-Down Converter Output Current up to 600 mA VIN Range from 2 V to 6 V for Li-ion Batteries with Extended Voltage Range 2.25-MHz Fixed Frequency Operation Power Save Mode at Light Load Currents Output Voltage Accuracy in PWM Mode ±1.5% Typical 15-μA Quiescent Current 100% Duty Cycle for Lowest Dropout Voltage Positioning at Light Loads Available in a SOT (5) and 2-mm × 2-mm × 0.8mm WSON (6) Package Allows 4.5 V. The input capacitor can be increased without any limit for better input voltage filtering. Take care when using only small ceramic input capacitors. When a ceramic capacitor is used at the input and the power is being supplied through long wires, such as from a wall adapter, a load step at the output or VIN step on the input can induce ringing at the VIN pin. This ringing can couple to the output and be mistaken as loop instability or could even damage the part by exceeding the maximum ratings. Table 3. List of Capacitors CAPACITANCE TYPE SIZE SUPPLIER 4.7 μF GRM188R60J475K 0603 1.6 × 0.8 × 0.8 mm3 Murata 10 μF GRM188R60J106M69D 0603 1.6 × 0.8 × 0.8 mm3 Murata Table 1 shows the list of components for the Application Curves. Copyright © 2007–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TPS62260 TPS62261 TPS62262 TPS62263 13 TPS62260, TPS62261, TPS62262, TPS62263 SLVS763E – JUNE 2007 – REVISED JULY 2015 www.ti.com 9.2.3 Application Curves 100% 100% VI = 2.3 V 90% 80% VI = 4.5 V VI = 3.6 V 60% 50% VI = 3 V 40% 30% VO = 1.8 V MODE = GND L = 2.2 μH DCR = 110 mΩ 10% 0% 10μ 40% VI = 4.5 V 100μ 1m 10m Output Current (A) 100m VO = 1.8 V MODE = VI L = 2.2 μH 10% 0% 1m 1 10m 100m Output Current (A) 1 Figure 8. Efficiency (PWM Mode) vs Output Current 100% 100% 90% 90% VI = 4.2 V VI = 3.6 V Efficiency VI = 5 V 50% VI = 4.5 V 40% VO = 3.3 V MODE = VI L = 2.2 μH DCR = 110 mΩ CO = 10 μF 0603 30% 20% 10% 0% 1m 10m 100m Output Current (A) 0% 10μ 1 VO = 3.3 V MODE = GND L = 2.2 μH DCR = 110 mΩ CO = 10 μF 0603 100μ 1m 10m Output Current (A) 100m 1 Figure 10. Efficiency (Power Save Mode) vs Output Current 90% VI = 2.7 V VI = 2.3 V 80% VI = 4.5 V 70% Efficiency VI = 2.3 V VI = 4.5 V VI = 3.6 V 20% 10% 0% 1m VI = 4.2 V 100% 50% 30% 40% 10% 90% 40% 50% 20% 100% 60% VI = 4.5 V 60% 30% Figure 9. Efficiency (PWM Mode) vs Output Current 70% VI = 5 V 70% 60% 80% VI = 3.6 V 80% 70% Efficiency VI = 3.6 V 50% 20% Figure 7. Efficiency (Power Save Mode) vs Output Current Efficiency VI = 3 V 60% 30% 20% VO = 1.2 V MODE = VI L = 2 μH MIPSA2520 CO = 10 μF 0603 10m 100m Output Current (A) Figure 11. Efficiency vs Output Current 14 VI = 2.7 V 70% Efficiency Efficiency 70% 80% VI = 2.3 V 90% 80% VI = 2.7 V Submit Documentation Feedback VI = 3.6 V 60% 50% VI = 2.7 V 40% VO = 1.2 V MODE = GND L = 2 μH MIPSA2520 CO = 10 μF 0603 30% 20% 10% 1 0% 10μ 100μ 1m 10m Output Current (A) 100m 1 Figure 12. Efficiency vs Output Current Copyright © 2007–2015, Texas Instruments Incorporated Product Folder Links: TPS62260 TPS62261 TPS62262 TPS62263 TPS62260, TPS62261, TPS62262, TPS62263 www.ti.com SLVS763E – JUNE 2007 – REVISED JULY 2015 1.88 1.88 1.86 1.86 PFM Mode, Voltage Positioning Output Voltage DC (V) Output Voltage DC (V) PFM Mode, Voltage Positioning 1.84 1.82 1.80 VI = 2.3 V VI = 3.6 V VI = 2.7 V 1.78 1.76 1.74 10μ 100μ PWM Mode VI = 4.5 V VI = 3 V TA = 25°C VO = 1.8 V MODE = GND L = 2.2 μH CO = 10 μF 1m 10m Output Current (A) 100m Output Voltage DC (V) Output Voltage DC (V) TA = –40°C VO = 1.8 V MODE = GND L = 2.2 μH CO = 10 μF 1.78 100μ 1m 10m Output Current (A) 100m 1 1.82 VI = 3.6 V VI = 2.7 V 1.78 100μ PWM Mode VI = 4.5 V VI = 3 V VI = 2 V TA = 25°C VO = 1.8 V MODE = VI L = 2.2 μH 1.836 1.84 1.76 TA = 85°C VO = 1.8 V MODE = GND L = 2.2 μH CO = 10 μF 1m 10m Output Current (A) 100m 1.818 1.8 1.782 VI = 3 V VI = 2.3 V VI = 2.7 V VI = 4.5 V VI = 3.6 V 1.764 1.746 10μ 1 Figure 15. Output Voltage Accuracy (Power Save Mode) vs Output Current 100μ 1m 10m Output Current (A) 100m 1 Figure 16. Output Voltage Accuracy (PWM Mode) vs Output Current 1.854 1.854 TA = –40°C VO = 1.8 V MODE = VI L = 2.2 μH 1.818 1.8 VI = 2 V VI = 3 V VI = 2.7 V TA = 85°C VO = 1.8 V MODE = VI L = 2.2 μH 1.836 Output Voltage DC (V) 1.836 Output Voltage DC (V) VI = 2.7 V PWM Mode VI = 3.6 V 1.854 PFM Mode, Voltage Positioning VI = 4.5 V VI = 3.6 V 1.764 1.746 10μ VI = 4.5 V VI = 3 V VI = 2.3 V Figure 14. Output Voltage Accuracy (Power Save Mode) vs Output Current 1.86 1.782 1.80 1.74 10μ 1 1.88 1.74 10μ 1.82 1.76 Figure 13. Output Voltage Accuracy vs Output Current 1.80 1.84 1.818 1.8 1.782 VI = 2.3 V VI = 3 V VI = 2.7 V VI = 4.5 V VI = 3.6 V 1.764 100μ 1m 10m Output Current (A) 100m 1 Figure 17. Output Voltage Accuracy (PWM Mode) vs Output Current Copyright © 2007–2015, Texas Instruments Incorporated 1.746 10μ 100μ 1m 10m Output Current (A) 100m 1 Figure 18. Output Voltage Accuracy (PWM Mode) vs Output Current Submit Documentation Feedback Product Folder Links: TPS62260 TPS62261 TPS62262 TPS62263 15 TPS62260, TPS62261, TPS62262, TPS62263 SLVS763E – JUNE 2007 – REVISED JULY 2015 VO (10 mV/Div) www.ti.com VI = 3.6 V VO = 1.8 V, IO = 150 mA L = 2.2 μH, CO = 10 μF 0603 VO (20 mV/Div) VI = 3.6 V VO = 1.8 V, IO = 10 mA L = 2.2 μH, CO = 10 μF SW (2 V/Div) SW (2 V/Div) ICOIL (200 mA/Div) ICOIL (200 mA/Div) Time Base (10 μs/Div) Time Base (10 μs/Div) Figure 19. Typical Operation (PWM Mode) VI = 3.6 V VO = 1.8 V IO = 10 mA MODE (2 V/Div) Figure 20. Typical Operation (PFM Mode) VI = 3.6 V VO = 1.8 V IO = 10 mA MODE (2 V/Div) SW (2 V/Div) SW (2 V/Div) PFM Mode Forced PWM Mode Forced PWM Mode PFM Mode ICOIL (200 mA/Div) ICOIL (200 mA/Div) Time Base (1 μs/Div) Figure 21. Mode Pin Transition from PFM to Forced PWM Mode at Light Load EN (2 V/Div) Time Base (2.5 μs/Div) Figure 22. Mode Pin Transition from PWM to PFM Mode at Light Load VI = 3.6 V VO = 1.5 V IO = 50 mA to 200 mA MODE = VIN VO (50 mV/Div) SW (2 V/Div) IO (200 mA/Div) VO (2 V/Div) 50 mA ICOIL (500 mA/Div) II (100 mA/Div) VI = 3.6 V, RL = 10 Ω VO = 1.8 V, II into CI MODE = GND Time Base (100 μs/Div) Figure 23. Start-Up Timing 16 200 mA Submit Documentation Feedback Time Base (20 μs/Div) Figure 24. Load Transient (Forced PWM Mode) Copyright © 2007–2015, Texas Instruments Incorporated Product Folder Links: TPS62260 TPS62261 TPS62262 TPS62263 TPS62260, TPS62261, TPS62262, TPS62263 www.ti.com SLVS763E – JUNE 2007 – REVISED JULY 2015 VI = 3.6 V VO = 1.5 V IO = 200 mA to 400 mA VO (50 mV/Div) IO (200 mA/Div) 400 mA SW (2 V/Div) VI = 3.6 V VO = 1.5 V IO = 150 μA to 400 mA MODE = GND VO (50 mV/Div) 200 mA 400 mA IO (500 mA/Div) ICOIL (500 mA/Div) 150 μA ICOIL (500 mA/Div) Time Base (500 μs/Div) Time Base (20 μs/Div) Figure 25. Load Transient (Forced PWM Mode) Figure 26. Load Transient (PFM Mode to PWM Mode) SW (2 V/Div) SW (2 V/Div) VI = 3.6 V VO = 1.5 V IO = 150 μA to 400 mA MODE = GND VI = 3.6 V VO = 1.5 V IO = 1.5 mA to 50 mA MODE = GND VO (50 mV/Div) VO (50 mV/Div) 400 mA 150 μA 50 mA IO (50 mA/Div) IO (500 mA/Div) 1.5 mA ICOIL (500 mA/Div) ICOIL (500 mA/Div) Time Base (50 μs/Div) Time Base (500 μs/Div) Figure 27. Load Transient (PWM Mode to PFM Mode) Figure 28. Load Transient (PFM Mode) SW (2 V/Div) SW (2 V/Div) VO (50 mV/Div) 50 mA VI = 3.6 V VO = 1.5 V IO = 50 mA to 1.5 mA MODE = GND VO (50 mV/Div) VI = 3.6 V VO = 1.8 V IO = 50 mA to 250 mA MODE = GND IO (50 mA/Div) 1.5 mA 50 mA 250 mA IO (200 mA/Div) ICOIL (500 mA/Div) ICOIL (500 mA/Div) Time Base (50 μs/Div) Figure 29. Load Transient (PFM Mode) Copyright © 2007–2015, Texas Instruments Incorporated Time Base (20 μs/Div) Figure 30. Load Transient (PFM Mode to PWM Mode) Submit Documentation Feedback Product Folder Links: TPS62260 TPS62261 TPS62262 TPS62263 17 TPS62260, TPS62261, TPS62262, TPS62263 SLVS763E – JUNE 2007 – REVISED JULY 2015 www.ti.com SW (2 V/Div) VO (50 mV/Div) PFM Mode IO (500 mA/Div) 50 mA VI = 3.6 V VO = 1.5 V IO = 50 mA to 400 mA MODE = GND PWM Mode 400 mA ICOIL (500 mA/Div) Time Base (20 μs/Div) Figure 31. Load Transient (PFM Mode to PWM Mode) VI = 3.6 V to 4.2 V (500 mV/Div) VI = 3.6 V to 4.2 V (500 mV/Div) VO = 1.8 V (50 mV/Div) IO = 50 mA MODE = GND VO = 1.8 V (50 mV/Div) IO = 250 mA MODE = VIN Time Base (100 μs/Div) Figure 33. Line Transient (PFM Mode) 18 Figure 32. Load Transient (PWM Mode to PFM Mode) Submit Documentation Feedback Time Base (100 μs/Div) Figure 34. Line Transient (Forced PWM Mode) Copyright © 2007–2015, Texas Instruments Incorporated Product Folder Links: TPS62260 TPS62261 TPS62262 TPS62263 TPS62260, TPS62261, TPS62262, TPS62263 www.ti.com SLVS763E – JUNE 2007 – REVISED JULY 2015 9.3 System Examples 9.3.1 TPS62260, Adjustable 1.5-V Output TPS62260DRV VIN CIN 4.7 mF VOUT 1.5 V Up to 600 mA L1 2.2 mH VIN = 2 V to 6 V SW R1 540 kΩ EN C1 22 pF COUT 10 mF FB GND R2 360 kΩ MODE Figure 35. TPS62260 Adjustable 1.5-V Output 9.3.2 TPS62262, Fixed 1.2-V Output TPS62262DRV VIN = 2 V to 6 V VIN CIN 4.7 mF L1 2.2 mH VOUT 1.2 V Up to 600 mA SW COUT 10 mF EN FB GND MODE Figure 36. TPS62262 Fixed 1.2-V Output 9.3.3 TPS62261, Fixed 1.8-V Output L1 2.2 mH TPS62261DRV VIN = 2 V to 6 V VIN CIN 4.7 mF VOUT 1.8 V Up to 600 mA SW EN FB GND COUT 10 mF MODE Figure 37. TPS62261 Fixed 1.8-V Output Copyright © 2007–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TPS62260 TPS62261 TPS62262 TPS62263 19 TPS62260, TPS62261, TPS62262, TPS62263 SLVS763E – JUNE 2007 – REVISED JULY 2015 www.ti.com 10 Power Supply Recommendations The TPS6226x device has no special requirements for its input power supply. The input power supply output current must be rated according to the supply voltage, output voltage, and output current of the TPS6226x. 11 Layout 11.1 Layout Guidelines As for all switching power supplies, the layout is an important step in the design. Proper function of the device demands careful attention to PCB layout. Care must be taken in board layout to get the specified performance. If the layout is not carefully done, the regulator could show poor line and/or load regulation, and additional stability issues as well as EMI problems. It is critical to provide a low inductance, impedance ground path. Therefore, use wide and short traces for the main current paths. The input capacitor should be placed as close as possible to the IC pins as well as the inductor and output capacitor. Connect the GND pin of the device to the PowerPAD™ land of the PCB and use this pad as a star point. Use a common power GND node and a different node for the signal GND to minimize the effects of ground noise. Connect these ground nodes together to the PowerPAD land (star point) underneath the IC. Keep the common path to the GND pin, which returns the small signal components and the high current of the output capacitors as short as possible to avoid ground noise. The FB line should be connected right to the output capacitor and routed away from noisy components and traces (for example, the SW line). 11.2 Layout Examples Figure 38. Suggested Layout for Fixed Output Voltage Options 20 Submit Documentation Feedback Copyright © 2007–2015, Texas Instruments Incorporated Product Folder Links: TPS62260 TPS62261 TPS62262 TPS62263 TPS62260, TPS62261, TPS62262, TPS62263 www.ti.com SLVS763E – JUNE 2007 – REVISED JULY 2015 Layout Examples (continued) VOUT R2 GND C1 R1 COUT CIN VIN L G N D U Figure 39. Suggested Layout for Adjustable Output Voltage Version Copyright © 2007–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: TPS62260 TPS62261 TPS62262 TPS62263 21 TPS62260, TPS62261, TPS62262, TPS62263 SLVS763E – JUNE 2007 – REVISED JULY 2015 www.ti.com 12 Device and Documentation Support 12.1 Device Support 12.1.1 Third-Party Products Disclaimer TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE. 12.2 Related Links The table below lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to sample or buy. Table 4. Related Links PARTS PRODUCT FOLDER SAMPLE & BUY TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY TPS62260 Click here Click here Click here Click here Click here TPS62261 Click here Click here Click here Click here Click here TPS62262 Click here Click here Click here Click here Click here TPS62263 Click here Click here Click here Click here Click here 12.3 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 12.4 Trademarks PowerPAD, E2E are trademarks of Texas Instruments. All other trademarks are the property of their respective owners. 12.5 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 12.6 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. 22 Submit Documentation Feedback Copyright © 2007–2015, Texas Instruments Incorporated Product Folder Links: TPS62260 TPS62261 TPS62262 TPS62263 PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) TPS62260DDCR ACTIVE SOT-23-THIN DDC 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 BYP Samples TPS62260DDCT ACTIVE SOT-23-THIN DDC 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 BYP Samples TPS62260DDCTG4 ACTIVE SOT-23-THIN DDC 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 BYP Samples TPS62260DRVR ACTIVE WSON DRV 6 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 BYK Samples TPS62260DRVT ACTIVE WSON DRV 6 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 BYK Samples TPS62260DRVTG4 ACTIVE WSON DRV 6 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 BYK Samples TPS62261DRVR ACTIVE WSON DRV 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 BYL Samples TPS62261DRVT ACTIVE WSON DRV 6 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 BYL Samples TPS62262DDCR ACTIVE SOT-23-THIN DDC 5 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 QXS Samples TPS62262DDCT ACTIVE SOT-23-THIN DDC 5 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 QXS Samples TPS62262DRVR ACTIVE WSON DRV 6 3000 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 BYM Samples TPS62262DRVT ACTIVE WSON DRV 6 250 RoHS & Green NIPDAUAG Level-1-260C-UNLIM -40 to 85 BYM Samples TPS62263DRVR ACTIVE WSON DRV 6 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 CFX Samples TPS62263DRVT ACTIVE WSON DRV 6 250 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 CFX Samples (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of