ChongMing Group (HK) Int'l Co., Ltd

CHONGMING GROUP (HK) INT'L CO., LTD.

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TPS51225BRUKR TPS51225CRUKR Power Path Management IC Switching Controllers Dual Sync Step-Down Controller

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ChongMing Group (HK) Int'l Co., Ltd
City:shenzhen
Country/Region:china
Contact Person:MsDoris Guo
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TPS51225BRUKR TPS51225CRUKR Power Path Management IC Switching Controllers Dual Sync Step-Down Controller

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Brand Name :Ti
Model Number :TPS51225BRUKR
Price :
Unit Weight :0.001344 oz
Subcategory Kit :PMIC - Power Management ICs
Product Type :Switching Controllers
Operating Supply Current :900 uA
Moisture Sensitive :Yes
Brand :Texas Instruments
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TPS51225BRUKR TPS51225CRUKR Power Path Management IC Switching Controllers Dual Sync Step-Down Controller

FEATURES

Input Voltage Range: 5.5 V to 24 V

  • Output Voltages: 5 V and 3.3 V (Adjustable Range ±10%)

  • Built-in, 100-mA, 5-V and 3.3-V LDOs

  • Clock Output for Charge-Pump

  • ±1% Reference Accuracy

  • Adaptive On-time D-CAPTM Mode Control Architecture with 300kHz/355kHz Frequency Setting

  • Auto-skip Light Load Operation (TPS51225/C)

  • OOA Light Load Operation (TPS51225B)

  • Internal 0.8-ms Voltage Servo Soft-Start

  • Low-Side RDS(on) Current Sensing Scheme with 4500 ppm/°C Temperature Coefficient

  • Built-in Output Discharge Function

  • Separate Enable Input for Switchers (TPS51225/B/C)

  • Dedicated OC Setting Terminals

  • Power Good Indicator

  • OVP/UVP/OCP Protection

  • Non-latch UVLO/OTP Protection

  • 20-Pin, 3 mm × 3 mm, QFN (RUK)

APPLICATIONS
Notebook Computers
• Netbook, Tablet Computers

DESCRIPTION

The TPS51225/B/C is a cost-effective, dual- synchronous buck controller targeted for notebook system-power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The 260-kHz VCLK output can be used to drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter efficiency. The TPS51225/B/C supports high efficiency, fast transient response and provides a combined power-good signal. Adaptive on-time, D- CAPTM control provides convenient and efficient operation. The device operates with supply input voltage ranging from 5.5 V to 24 V and supports output voltages of 5.0 V and 3.3 V. The TPS51225/B/C is available in a 20-pin, 3 mm × 3 mm, QFN package and is specified from –40°C to 85°C.

ORDERING INFORMATION

ORDERABLE DEVICE NUMBER ENABLE FUNCTION SKIP MODE ALWAYS ON-LDO PACKAGE OUTPUT SUPPLY QUANTITY
TPS51225RUKR EN1/ EN2 Auto-skip VREG3 PLASTIC Quad Flat Pack (20 pin QFN) Tape and Reel 3000
TPS51225RUKT Mini reel 250
TPS51225BRUKR EN1/ EN2 OOA VREG3 Tape and Reel 3000
TPS51225BRUKT Mini reel 250
TPS51225CRUKR EN1/ EN2 Auto-skip VREG3 & VREG5 Tape and Reel 3000
TPS51225CRUKT Mini reel 250
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