TPS51511EVM

www.ti.com Table of Contents User’s Guide TPS51511 Buck Controller Evaluation Module User's Guide ABSTRACT This user's guide contains information pertaining to the TPS51511 operating specification, the EVM schematic, the bill of materials, and the printed-circuit board layout. Table of Contents 1 Hardware................................................................................................................................................................................. 2 1.1 Operating Specification, TPS51511................................................................................................................................... 2 1.2 Schematic.......................................................................................................................................................................... 3 1.3 Bill of Materials...................................................................................................................................................................4 1.4 Board Layout Using TPS51511RHL (QFN 20)...................................................................................................................5 1.5 Test Setup and Procedures................................................................................................................................................9 2 Revision History................................................................................................................................................................... 10 Trademarks All trademarks are the property of their respective owners. SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 1 Hardware www.ti.com 1 Hardware 1.1 Operating Specification, TPS51511 Table 1-1. Common Parameters CH1: Switcher PARAMETER TEST CONDITIONS Input voltage range (VIN) MIN Input voltage range (V5IN) MAX 25 4.75 Operating frequency Output voltage TYP 3 5.25 350 High performance 1.2 Low performance 1.1 Adjustable 0.75 UNIT V V kHz 400 k V 3.3 Output current 15 A Current limit 18 A CH2: LDO PARAMETER TEST CONDITIONS Input voltage range Output voltage MIN TYP 1.5 VGA I/O power Adjustable 5 1.2 0.75 3.3 Output current 2 Current limit 2 MAX 2.5 TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated UNIT V V A A SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback www.ti.com Hardware Optional R1 is connected to a pad located near Q3 for possible resistor current sense. (CS_Option) + + 1.2 Schematic Figure 1-1. TPS51511RHL EVM Schematic Diagram (Switcher 1.2 V at 15 A, LDO 1.2 V at 2 A) SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 3 Hardware www.ti.com 1.3 Bill of Materials Table 1-2 presents The TPS51511EVM bill of materials. Table 1-2. TPS51511EVM Bill of Materials RefDes Pattern Name Value MFR Part Number C1, C2 D2E 330 μF/2.5 V Sanyo 2R5TPE330MC C3, C4, C5 1210 10 μF/25 V TDK C3225X5R1E106M C6, C8, C9, C16 0805 10 μF/6.3 V TDK C2012X5R0J106K C7 0603 4.7 μF/6.3 V TDK C1608X5R0J475M C10, C11, C19 0603 0.01 μF/50 V TDK C1608X7R1H103M C13 0603 0.1 μF/50 V TDK C1608X7R1H104K C14 0603 1000 pF/50 V TDK C1608X7R1H102K C17 0805 1 μF/ 25 V TDK C2012X7R1E105K C18 0603 Not Installed TDK C1608JB1H102M (1 nF/50 V) C12, C15 0805 Not Installed TDK C1608X5R0JxxxM Q1 SO-8 IRF7821 IR IRF7821 Q2 SO-8 IRF7832 IR IRF7832 Q3 SO-8 Not Installed IR IRF7832 Q4 SOT-23 Not Installed Vishay 2N7002 D2 SOD-123 Not Installed On Semi MBR0530 L1 IND_IHLP- 5050 1.0 μH Vishay IHLP5050CEER1R0M01 DAC1 ON-OFF-ON G-13AP NKK G13AP DAC2, LDO, SW ON-ON G-12AP NKK G12AP R3 0603 0 Vishay Std R11 0805 0 Vishay Std R2, R17, R20, R21 0603 1K Vishay Std R6 0603 6.34 K Vishay Std R10, R12 0603 10 K Vishay Std R5 0603 14 K Vishay Std R16 0603 18.2 K Vishay Std R9, R15 0603 30.1 K Vishay Std R7 0603 100 K Vishay Std R13 0603 105 K Vishay Std R1, R14 0603 Not Installed Vishay 0 R18 0603 Not Installed Vishay 100K R19 0603 Not Installed Vishay Depends on 2bit DAC Vout set R4 0603 Not Installed Vishay Std R8 0805 Not Installed Vishay Std U1 QFN 20 TPS51511 TI TPS51511RHL TP1 TP-Probe 131-4244-00 Tektronix 131-4244-00 TP2–TP15 TP loop 5002 Keystone Elect. 50021 1582-2 Keystone Elect. 1582-2 Bumpon 0.44 × 0.20 Black (4 Corners bottom) 3M SJ5003 (Black) V5IN, V5IN_GND, VIN, Turret Dbl VIN_GND, VO, VO_GND, LDOIN, LDO_GND, LDO_OUT HARDWARE Standoff 4 SJ5003 TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback www.ti.com Hardware 1.4 Board Layout Using TPS51511RHL (QFN 20) Figure 1-2. Top Layer Copper SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 5 Hardware www.ti.com Figure 1-3. Layer 2 (Internal 1) Copper 6 TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback www.ti.com Hardware Figure 1-4. Layer 3 (Internal 2) Copper SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 7 Hardware www.ti.com Figure 1-5. Bottom Layer Copper 8 TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback www.ti.com Hardware 1.5 Test Setup and Procedures DAC2 External Additional DAC DAC1 Internal DAC Switch Gate PGOOD2: Configure to LDO LDO Enable Switch Switcher Enable Figure 1-6. Switches and Jumpers Table 1-3. Various Switch Settings Switch Function On Off Floating Components to Add for Specific Configuration DAC2 Low High N/A R19, Q4 DAC1 High Low LDO Power Good R14, R18 (LDO Power Good) LDO Switch High Low N/A N/A Sw (Switcher Enable) High Low N/A N/A SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 9 Revision History www.ti.com LDOIN External Supply Voltage Range 1.5 V to 3.4 V @ 3.5 A (-) (+) 5 V DC Supply Voltage Current Limited @ 1 A LDO Load 2 A (-) (+) (+) (-) VIN DC Supply Voltage Current Limit @ 5 A Range 3 V to 25 V (-) (+) (-) VOSW Load 0 - 15 A (+) Figure 1-7. Test Setup • Standard Test Procedures – Required Equipment: • 3 × Bench power supplies (V5in supply 4.75 V to 5.25 V at 1 A), (Vin supply 3 V to 25 V at 5 A), (LDO_IN 1.5 V to 3.4 V at 3.5 A). • 2 x Electronic loads one capable of sinking 19 A at 1.2 V and the other capable of sinking 4 A at 1.2 V. – Switch Settings: • DAC1 = ON, Switcher operates in the high-performance range (1.2-V output). • LDO (ON/OFF) = Enables or disables the LDO output (1.2 V at 2 A). • SW (ON/OFF) = Enables or disables the Switcher output. (1.2 V at 15 A) (Low-current skip mode current > 2 A operates in PWM mode. – Bootstrap Diode: • Bootstrap diode D1 is not populated on the current evaluation module because the TPS51511 has a built-in bootstrap diode. In order to further improve the efficiency, D1 can be added. 2 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision * (May 2007) to Revision A (February 2022) Page • Updated the numbering format for tables, figures, and cross-references throughout the document. ................2 10 TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback www.ti.com • Revision History Updated the user's guide title............................................................................................................................. 2 SLVU196A – MAY 2007 – REVISED FEBRUARY 2022 Submit Document Feedback TPS51511 Buck Controller Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 11 IMPORTANT NOTICE AND DISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. 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