TPS54540DDAR TPS54540 converter DC-DC IC

• shape: SMD
• Conductive Type: Unipolar Integrated Circuit
• Integration: ULSI
• Technics: Thin Film IC
• Application: Standard Generalized Integrated Circuit
• Type: Analog IC
• Model NO.: TPS54540DDAR
• MFG.: TI
• D/C: 17+
• Package: SOIC-8
• Quality: Genuine New Original
• Transport Package: Box
• Origin: China
• HS Code: 8542390000
• Production Capacity: 1000000PCS

Product Description

Description

TPS54540DDAR: Conv DC-DC Single Step Down 4.5V to 42V 8-Pin SOIC-PowerPad T/R 

Package: SOIC-8

Mfr. Part#: TPS54540DDAR

Mfr.: TI
Datasheet: (e-mail or chat us for PDF file)

ROHS Status: 

Quality: 100% Original

Warranty: 180 days
 

The TPS54540 is a 42 V, 5 A, step down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 45V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load supply current to 146 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using the enable pin. The output voltage start up ramp is internally controlled to provide a controlled start up and eliminate overshoot.

A wide switching frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.

The TPS54540 is available in an 8-terminal thermally enhanced HSOIC PowerPAD package.

 

Key Features

• High Efficiency at Light Loads with Pulse Skipping 
  Eco-mode
• 92-mO High-Side MOSFET
• 146 µA Operating Quiescent Current and 
  2 µA Shutdown Current
• 100 kHz to 2.5 MHz Fixed Switching Frequency
• Synchronizes to External Clock
• Low Dropout at Light Loads with Integrated BOOT 
  Recharge FET
• Adjustable UVLO Voltage and Hysteresis
• 0.8 V 1% Internal Voltage Reference
• 8-Terminal HSOIC with PowerPAD Package
• -40°C to 150°C T_J Operating Range
• Supported by WEBENCH Software Tool

 

Function	Step-Down
Output Configuration	Positive
Topology	Buck, Split Rail
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	4.5V
Voltage - Input (Max)	42V
Voltage - Output (Min/Fixed)	0.8V
Voltage - Output (Max)	41.1V
Current - Output	5A
Frequency - Switching	100kHz ~ 2.5MHz
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	8-PowerSOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SO PowerPad

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Why choosing us

• Located in Shenzhen, the electronic market center of China.
• 100% guarantee components quality: Genuine Original.
• Sufficient stock on your urgent demand.
• Sophisticated colleagues help you solve problems to reduce your risk with on-demand manufacturing
• Faster shipment: In stock components can ship the same day .
• 24 Hours service 

 

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