Datasheets
LT1959CR#TRPBF by:
Analog Devices Inc
Analog Devices Inc
Linear Technology
Not Found

4.5A, 500kHz Step-Down Switching Regulator

Part Details for LT1959CR#TRPBF by Analog Devices Inc

Results Overview of LT1959CR#TRPBF by Analog Devices Inc

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Applications Energy and Power Systems Transportation and Logistics Renewable Energy Automotive

LT1959CR#TRPBF Information

LT1959CR#TRPBF by Analog Devices Inc is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for LT1959CR#TRPBF

Part # Distributor Description Stock Price Buy
DISTI # 505-LT1959CR#TRPBFTR-ND
DigiKey IC REG BUCK SEPIC ADJ 4.5A DDPAK Min Qty: 750 Lead time: 10 Weeks Container: Tape & Reel (TR) Temporarily Out of Stock
  • 750 $7.4750
$7.4750 Buy Now
DISTI # 584-LT1959CR#TRPBF
Mouser Electronics Switching Voltage Regulators 4.5A, 500kHz Buck Sw Reg RoHS: Compliant 0
  • 750 $7.4700
$7.4700 Order Now
Analog Devices Inc 4.5A, 500kHz Buck Sw Reg Min Qty: 750 Package Multiple: 750 0
  • 1 $15.3500
  • 1,000 $5.9800
$5.9800 / $15.3500 Buy Now
DISTI # LT1959CR#TRPBF
Richardson RFPD DC TO DC CONVERTER RoHS: Compliant Min Qty: 750 0
  • 750 $8.2400
  • 1,000 $8.0300
  • 5,000 $7.7200
$7.7200 / $8.2400 Buy Now

Part Details for LT1959CR#TRPBF

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LT1959CR#TRPBF Part Data Attributes

LT1959CR#TRPBF Analog Devices Inc
Buy Now Datasheet
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LT1959CR#TRPBF Analog Devices Inc 4.5A, 500kHz Step-Down Switching Regulator
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Pbfree Code No
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer ANALOG DEVICES INC
Package Description PLASTIC, D2PAK-7
Pin Count 7
Manufacturer Package Code 05-08-1462
Reach Compliance Code not_compliant
Samacsys Manufacturer Analog Devices
Analog IC - Other Type SWITCHING REGULATOR
Control Mode CURRENT-MODE
Input Voltage-Max 15 V
Input Voltage-Min 4.3 V
Input Voltage-Nom 5 V
JESD-30 Code R-PSSO-G7
JESD-609 Code e3
Length 10.2235 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Terminals 7
Output Current-Max 8.5 A
Package Body Material PLASTIC/EPOXY
Package Code TO-263
Package Equivalence Code SMSIP7H,.55,50TB
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Qualification Status Not Qualified
Seated Height-Max 4.572 mm
Surface Mount YES
Switcher Configuration BUCK
Switching Frequency-Max 560 kHz
Technology BIPOLAR
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position SINGLE
Width 8.89 mm

Alternate Parts for LT1959CR#TRPBF

This table gives cross-reference parts and alternative options found for LT1959CR#TRPBF. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LT1959CR#TRPBF, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
LT1959IR#TRPBF Linear Technology Check for Price LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: DD PAK; Pins: 7; Temperature Range: -40°C to 85°C LT1959CR#TRPBF vs LT1959IR#TRPBF
LT1959CR#PBF Linear Technology Check for Price LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: DD PAK; Pins: 7; Temperature Range: 0°C to 70°C LT1959CR#TRPBF vs LT1959CR#PBF
Part Number Manufacturer Composite Price Description Compare
LT1959IR Analog Devices Inc Check for Price Switching Regulator, Current-mode, 8.5A, 560kHz Switching Freq-Max, BIPolar, PSSO7 LT1959CR#TRPBF vs LT1959IR
LT1959IR Linear Technology Check for Price LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: DD PAK; Pins: 7; Temperature Range: -40°C to 85°C LT1959CR#TRPBF vs LT1959IR
LT1959IR#TR Linear Technology Check for Price LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: DD PAK; Pins: 7; Temperature Range: -40°C to 85°C LT1959CR#TRPBF vs LT1959IR#TR
LT1959IR#PBF Linear Technology Check for Price LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: DD PAK; Pins: 7; Temperature Range: -40°C to 85°C LT1959CR#TRPBF vs LT1959IR#PBF
LT1959IR#TRPBF Analog Devices Inc Check for Price 4.5A, 500kHz Step-Down Switching Regulator LT1959CR#TRPBF vs LT1959IR#TRPBF
LT1959CR#TR Analog Devices Inc Check for Price Switching Regulator, Current-mode, 8.5A, 560kHz Switching Freq-Max, BIPolar, PSSO7 LT1959CR#TRPBF vs LT1959CR#TR
LT1959CR#PBF Analog Devices Inc Check for Price 4.5A, 500kHz Step-Down Switching Regulator LT1959CR#TRPBF vs LT1959CR#PBF
LT1959IR#TR Analog Devices Inc Check for Price Switching Regulator, Current-mode, 8.5A, 560kHz Switching Freq-Max, BIPolar, PSSO7 LT1959CR#TRPBF vs LT1959IR#TR
LT1959CR Linear Technology Check for Price LT1959 - 4.5A, 500kHz Step-Down Switching Regulator; Package: DD PAK; Pins: 7; Temperature Range: 0°C to 70°C LT1959CR#TRPBF vs LT1959CR
LT1959IR#PBF Analog Devices Inc $9.9630 4.5A, 500kHz Step-Down Switching Regulator LT1959CR#TRPBF vs LT1959IR#PBF

LT1959CR#TRPBF Frequently Asked Questions (FAQ)

  • A good PCB layout for the LT1959CR involves keeping the input and output traces short and separate, using a solid ground plane, and placing the input and output capacitors close to the device. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.

  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Also, ensure that the output capacitor has a low ESR and is properly decoupled from the input. Additionally, avoid using long input traces and keep the input and output voltage rails separate.

  • The LT1959CR can operate in ambient temperatures up to 125°C, but the junction temperature should not exceed 150°C. It's essential to ensure proper thermal management and heat sinking to prevent overheating.

  • Yes, the LT1959CR is qualified for automotive and high-reliability applications. It meets the AEC-Q100 standard for automotive applications and is manufactured using a high-reliability process. However, it's essential to follow the recommended design and testing guidelines to ensure the device meets the specific application requirements.

  • To troubleshoot issues, start by verifying the input voltage, output voltage, and current. Check for proper component values, PCB layout, and thermal management. Use an oscilloscope to check for oscillations or noise on the output. If the issue persists, consult the datasheet and application notes or contact Analog Devices' technical support for assistance.