Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- DISSIPATION RATINGS
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS
- DEVICE INFORMATION
- TYPICAL CHARACTERISTICS
- APPLICATION INFORMATION
- PWM Operations
- Adaptive On-Time Control and PWM Frequency
- Loop Compensation
- Ramp Signal
- Light Load Condition in Auto-Skip Operation
- Out-of-Audio™ Light-Load Operation
- Enable and Soft Start
- VREG5/VREG3 Linear Regulators
- VREG5 Switch Over
- VREG3 Switch Over
- Powergood
- Output Discharge Control
- Low-Side Driver
- High-Side Driver
- Current Protection
- Overvoltage and Undervoltage Protection
- UVLO Protection
- Thermal Shutdown
- External Parts Selection
- Layout Considerations
- Application Circuit
- Revision History
TPS51123
DRVL1DRVL2
PowerPAD
VFB1VFB2 VREF
GND
VREG5
VREG3
220 nF
SGND
SGND
UDG-08166
5 3 2
5 19
15
33 mF
817
10 mF
V
IN
V
IN
V
OUT1
V
OUT2
PGND PGND
TPS51123
SLUS890E –DECEMBER 2008–REVISED JANUARY 2013
www.ti.com
Figure 37. Ground System
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