TPS65252RHDR ,4.5V to 16V input, 3A/2A output dual buck converter with an USB switch 28-VQFN -40 to 85FEATURES APPLICATIONS• Wide Input Supply Voltage Range • DTV(4.5 V - 16 V)• DSL Modems• Output Rang ..
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TPS65252RHDR
4.5V to 16V INPUT with 2 BUCK CONVERTER and 1x USB switch
OSC
Vin
INTERNAL
VOLTAGE RAILS
V3V
V7V
Vout BUCK1
LX1
LX1
FB1
CMP1
BST1
BUCK1
Vout BUCK2
LX2
LX2
FB2
CMP2
BST2
EN1
SS1
VIN1
ROSC
Light Load
Power Saving
Low_P
USB
USB Output
USB_VO
USB Input
Enable logic
USB over currentUSB_nILIM
USB_EN
USB_VIN
PGOOD PGOOD
rUSB
VPULL
VPULL Fully Integrated Dual Buck, • Set Top Boxes
3.5-A/2.5-A Maximum Current, • Car DVD Players3-A/2-A Continuous Operation• High Efficiency• Switching Frequency:
300 kHz- 2.2 MHz Set By External Resistor External Enable/Sequencing Pins Adjustable Cycle-By-Cycle Current Limit Set External Resistor Soft Start Pins Current Mode Control With Simple
Compensation Circuit Power Good and Reset Generator Low Power Mode Set By External Signal One Current Adjustable USB Switch With Over
Current Protection Supervisory Circuit QFN Package, 28-Pin5 mmx5 mm RHD
DESCRIPTION/ORDERING INFORMATIONThe TPS65252 features two synchronous wide input range high
designedto simplifyits application while giving the designer the9-or 12-V systems and have integrated power transistors. The output voltage dividerto any value between 0.8V and the input supply minus1V. Each pin that allowsa delayed start-up for sequencing purposes, soft start pin that allows capacitor, limit (RLIMx) pin that enables external the choiceof inductor. The COMP response RC can be set resistorto operate from 300 kHz operate 180° filter requirements. mode enabledby fora when the host processorisin stand-by (low
