24-pin (RGE) package image

TPS65282RGER ACTIVE

4.5V to 18V input, 4A output synchronous buck converter with dual power distribution switches

ACTIVE custom-reels CUSTOM Custom reel may be available

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Quality information

Rating Catalog
RoHS Yes
REACH Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish / Ball material
  • MSL rating / Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Additional manufacturing information

Information included:

  • Fab location
  • Assembly location
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins VQFN (RGE) | 24
Operating temperature range (°C) -40 to 125
Package qty | Carrier 3,000 | LARGE T&R

Features for the TPS65282

    INTEGRATED POWER DISTRIBUTION SWITCH

    • Operating Input Voltage Range: 2.5 V to 6.5 V
    • Integrated Back-to-Back Power MOSFETs With 100-mΩ On-Resistance
    • Adjustable Current Limit:
      75 mA - 2.7 A (typical)
    • ±6% Current-Limit Accuracy at 1.7 A (typical)
    • 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

    INTEGRATED BUCK DC/DC CONVERTER

  • Wide Input Voltage Range: 4.5 V to 18 V
  • Maximum Continuous 4-A Output Current
  • Feedback Reference Voltage: 0.8 V ±1 %
  • Adjustable 300-kHz to 1.4-MHz Switching Frequency
  • Pulse Skipping Mode at Light Load Efficiency
  • Adjustable Soft-Start and Tracking With
    Built-In 1.2-ms Internal Soft-Start Time
  • Cycle-by-Cycle Current Limit
  • Output Over-Voltage Protection
  • Power Good Indicator
  • Over Temperature Protection
  • 24-Lead QFN (RGE) 4-mm × 4-mm Package

Description for the TPS65282

The TPS65282 incorporates dual N-channel MOSFET power switches for USB power distribution systems that require dual power switches in a single package. It also integrates a buck monolithic converter. The device is intended to provide a total USB power distribution solution for digital TV, set-top boxes, tablet PC and VOIP phones etc applications, where precision current limiting is required or heavy capacitive loads or short circuits are encountered.

Dual 100-mΩ independent power distribution switch limits the output current to a programmable current limit threshold between typical 75 mA and 2.7 A by using an external resistor. The current limit accuracy can be achieved as tight as ±6% at higher current limit setting. TPS65282 device limits output current to a safe level by using a constant current mode when output load exceeds the current limit threshold. After deglitching time, TPS65282 provides circuit breaker functionality by latching off the power switch during over-current or reverse-voltage situations. Two back-to-back power MOSFETs prevents the current injects from output to input in shutdown. An internal reverse-voltage comparator disables the power switch when the output voltage is driven higher than the input to protect the circuits on the input side of the switch in normal operation. The nFAULT1/2 output asserts low during over-current and reverse-voltage conditions.

The buck DC/DC converter integrates power MOSFETs for optimized power efficiency and reduced external component. A wide 4.5-V to 18-V input supply range to buck encompasses most intermediate bus voltages operating off 5-V, 9-V, 12-V or 15-V power bus. Peak current mode control simplifies the compensation and fast transient response. Equipped with enable and soft-start pin, the DC/DC can be precisely sequenced and ramp up in order to align with other rails in the system. Cycle-by-cycle over-current protection and operating in hiccup mode limit MOSFET power dissipation during buck output short circuit or over loading fault conditions. The switching frequency of the converter can be programmed from 300 kHz to 1.4 MHz with an external resistor at ROSC pin. With ROSC pin connecting to V7V pin, floating, or grounding, a default fixed switching frequency can be selected. The buck also features a pulse skipping mode (PSM), which allows a power loss reduction on the input power supplied to the system to achieve high efficiency at light loading.

The device implements an internal thermal shutdown to protect itself if the junction temperature exceeds 160°C. The thermal shutdown forces the device to stop operating when the junction temperature exceeds thermal trip threshold. Once the die temperature decreases below 140°C, the device reinitiates the power up sequence. The thermal shutdown hysteresis is 20°C.

The TPS65282 is available in a 24-lead thermally enhanced QFN (RGE) 4-mm × 4-mm thin package.

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Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

A custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships tube or tray devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

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