TPS65280
www.ti.com
SLVSBE4A – JUNE 2012 – REVISED SEPTEMBER 2012
DUAL POWER DISTRIBUTION SWITCH AND MONOLITHIC SYNCH...
TPS65280
www.ti.com
SLVSBE4A – JUNE 2012 – REVISED SEPTEMBER 2012
DUAL POWER DISTRIBUTION SWITCH AND MONOLITHIC SYNCHRONOUS BUCK
REGULATOR WITH 5.5-V TO 18-V INPUT VOLTAGE, FIXED 5-V OUTPUT VOLTAGE AND
4-A MAXIMUM CURRENT
Check for Samples: TPS65280
FEATURES
1
INTEGRATED DUAL POWER DISTRIBUTION SWITCHES
Operating Input Voltage Range: 2.5 V to 6 V
Integrated Back-to-Back Power MOSFETs With 80-mΩ On-Resistance
Up to 1-A Maximum Load Current
Current Limiting at Typical 1.2 A (0.8 A,1.6 A or 2 A Available With Manufacture Trim Options)
Latch-off Over Current Protection Versions
Reverse Input-Output Voltage Protection
Built-In Soft-Start
4-kV HBM and 200-V MM ESD Protection at Power Switch Output Pins 15-kV ESD Protection per IEC 61000-4-2 With 10-µF External Capacitance
Over Temperature Protection
24-Lead QFN (RGE) 4-mm x 4-mm Package xxx xxx xxx xxx
INTEGRATED BUCK DC/DC CONVERTER Wide Input Voltage Range: 5.5 V to 18 V Maximum Continuous 4-A Output Load
Current Fixed Output Voltage: 5 V ±1% Adjustable 300-kHz to 1.4-MHz Switching
Frequency External Clock Synchronization Adjustable Soft Start and Tracking With
Built-In 1-ms Internal Soft-start Time Cycle-by-Cycle Current Limit Output Over-voltage Protection
APPLICATIONS
USB Ports and Hubs Digital TV Set-Top Boxes VOIP Phones Tablet PC
DESCRIPTION/ORDERING INFORMATION
The TPS65280 incorporates dual N-channel MOSFET power switches for USB power distribution systems that require d...