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TI TPS54428DDARRoHS

Manufacturer
TI
MPN
TPS54428DDAR
LCSC Part #
C138717
Packaging
HSOP-8-EP
Customer #
Key Attributes
4.5V to 18V Input, 4A Synchronous Buck Converter
Datasheetpdf iconTI TPS54428DDAR
In-Stock: 151
151 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 0.4941$ 0.49
10+$ 0.4077$ 4.08
30+$ 0.3702$ 11.11
100+$ 0.3245$ 32.45
500+$ 0.3049$ 152.45
1,000+$ 0.2919$ 291.90
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTI
PackagingHSOP-8-EP
Operating Temperature-40℃~+85℃
Frequency - Switching650kHz
FunctionStep-down type
Number of Outputs1
FeaturesAdjustable soft-start;Cycle-by-cycle current limiting;Light load efficient mode;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage4.5V~18V
Switch tube (built-in/external)Built-in
Output Voltage760mV~7V
Output Current4A
Quiescent Current10uA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The TPS54428 is an adaptive on-time D-CAP2™ mode synchronous buck converter. It helps system designers complete power bus regulator sets for various end equipment through a cost-effective, low component count, low standby current solution. The main control loop uses D-CAP2™ mode control to achieve fast transient response without external compensation components. Adaptive on-time control supports seamless transition between PWM mode under heavy load conditions and Eco-mode™ operation under light load. Eco-mode™ enables the TPS54428 to maintain high efficiency under light load conditions. A proprietary circuit allows the device to use low ESR output capacitors such as polymer organic semiconductor solid capacitors (POSCAP) or polymer capacitors (SP-CAP), as well as ultra-low ESR ceramic capacitors. The device operates with an input voltage range of 4.5V to 18V VIN, with output voltage adjustable from 0.76V to 7.0V. The device also features an adjustable soft-start time. Available in an 8-pin DDA package and a 10-pin DRC package, designed to operate over an ambient temperature range of -40°C to 85°C.

Features

AI Translation
  • D-CAP2™ mode for fast transient response
  • Low output ripple, compatible with ceramic output capacitors
  • Wide input voltage range: 4.5V to 18V
  • Output voltage range: 0.76V to 7.0V
  • High-efficiency integrated FET
  • Optimized for low duty cycle applications
  • -70mΩ (high-side) and 53mΩ (low-side)
  • High efficiency in shutdown, quiescent current below 10μA
  • High initial bandgap reference accuracy
  • Adjustable soft-start
  • Pre-bias soft-start
  • 650kHz switching frequency (fSW)
  • Cycle-by-cycle overcurrent limiting
  • Automatic skip Eco-mode™ for high efficiency at light loads

Applications

AI Translation
  • Wide application in low-voltage systems
  • Digital TV power supplies
  • High-definition Blu-ray Disc players
  • Network home terminal equipment
  • Digital set-top boxes (STB)