Texas Instruments SLVP089 manual Input/Output Connections, Power Supply

Page 12

Input/Output Connections

1.3 Input/Output Connections

Figure 1–3 shows the input/output connections to the SLVP089.

Figure 1–3. Input/Output Connections

Power Supply

– +

 

 

 

C5

Q1

 

 

 

 

 

 

 

 

 

 

 

Q2

 

 

 

 

C11

 

 

R5

 

 

 

 

L1

C10

 

 

 

R7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U2

 

R13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C6

 

 

 

 

 

J1

R12

 

C14

 

CR1

 

 

J2

 

 

 

 

 

1

CR3

 

 

 

 

 

 

 

 

 

 

 

 

 

R6

 

 

 

1

 

 

 

 

R10

JMP1

 

 

 

 

 

 

 

 

 

C12

 

 

C13

 

R11CR2

 

 

 

C15

 

C8

 

 

 

 

R4 R3

 

TEXAS INSTRUMENTS

 

 

R9

SLVP089

 

 

U1

 

 

 

TL5001

C4

 

 

R8

EVAL BOARD

 

 

 

 

C3

 

C9 REV2

 

 

+3.3V, 3 AMP

 

 

 

 

 

R2

 

C1

 

 

 

SYNC. RECT BUCK

R1

 

 

 

 

 

 

 

C2

 

 

LOAD

+

Notes: 1) Source power should be able to supply a minimum of 2.5 A at 5.5-V input and/or 1.1-A at 12-V input.

2) Load should be able to sink up to 3A with adequate power rating. Resistive loads with adequate ratings may be used.

1-4

Image 12
Contents User’s Guide 07/98 Literature Number SLVU001A July Important Notice Read This First About This ManualTrademarks Contents Figures TablesHardware TopicIntroduction Typical Synchronous Buck ConverterSchematic Schematic DiagramPower Supply Input/Output ConnectionsBoard Layout Shows the SLVP089 board layoutBill of Materials Bill of MaterialsTest Results Load Regulation and Ripple, 3.3-V 9-V InputPower Switch Turn-On and Delay from Q2 Off Inductor and Output Ripple Page Design Procedure Introduction Operating Specifications Operating SpecificationsDesign Procedures Duty Cycle Estimate+ 3 W Controller Functions + DD V O Compensation Network Bode Plot