Datasheets
LA5759-MDB-E by: onsemi

Separately-Excited Step-Down Switching Regulator (Variable type), TO-220 5L / 220-5H, 50-FNFLD

Part Details for LA5759-MDB-E by onsemi

Results Overview of LA5759-MDB-E by onsemi

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Consumer Electronics

LA5759-MDB-E Information

LA5759-MDB-E by onsemi 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 LA5759-MDB-E

Part # Distributor Description Stock Price Buy
DISTI # 86082469
Verical Conv DC-DC 4.5V to 32V Step Down Single-Out 5-Pin(5+Tab) 220-5H Fan-Fold Min Qty: 244 Package Multiple: 1 Americas - 300
  • 244 $1.5375
  • 500 $1.4750
  • 1,000 $1.3875
$1.3875 / $1.5375 Buy Now
Rochester Electronics Switching Regulator/Controller, Voltage-mode, 1.5A, 100kHz Switching Freq-Max, PZIP5 RoHS: Not Compliant Status: Obsolete Min Qty: 1 526
  • 1 $1.3100
  • 25 $1.2800
  • 100 $1.2300
  • 500 $1.1800
  • 1,000 $1.1100
$1.1100 / $1.3100 Buy Now

Part Details for LA5759-MDB-E

LA5759-MDB-E CAD Models

There are no models available for this part yet.

Sign in to request this CAD model.

Register or Sign In

LA5759-MDB-E Part Data Attributes

LA5759-MDB-E onsemi
Buy Now Datasheet
Compare Parts:
LA5759-MDB-E onsemi Separately-Excited Step-Down Switching Regulator (Variable type), TO-220 5L / 220-5H, 50-FNFLD
Select a part to compare:
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer ONSEMI
Pin Count 5
Manufacturer Package Code 221AJ
Reach Compliance Code unknown
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 4 Weeks
Control Mode VOLTAGE-MODE
JESD-30 Code R-PZIP-T5
JESD-609 Code e6
Number of Terminals 5
Operating Temperature-Max 125 °C
Operating Temperature-Min -30 °C
Output Current-Max 1.5 A
Package Body Material PLASTIC/EPOXY
Package Code ZIP
Package Equivalence Code ZIP5,.15,.12,67TB
Package Shape RECTANGULAR
Package Style IN-LINE
Qualification Status Not Qualified
Surface Mount NO
Switching Frequency-Max 100 kHz
Temperature Grade OTHER
Terminal Finish Tin/Bismuth (Sn/Bi)
Terminal Form THROUGH-HOLE
Terminal Pitch 1.7 mm
Terminal Position ZIG-ZAG

LA5759-MDB-E Frequently Asked Questions (FAQ)

  • A good PCB layout for optimal thermal performance would involve placing thermal vias under the IC, using a solid ground plane, and keeping the thermal path as short as possible. It's also recommended to use a thermal pad on the bottom of the IC and connect it to a heat sink or a thermal plane.

  • To ensure reliable operation in high-temperature environments, it's essential to follow the recommended operating temperature range, use a heat sink or thermal management system, and ensure good airflow around the IC. Additionally, consider using a thermal interface material (TIM) between the IC and the heat sink to improve heat transfer.

  • When designing a power supply using LA5759-MDB-E, critical components to consider include the input capacitor, output capacitor, inductor, and diode. Ensure that these components are selected based on the recommended specifications in the datasheet and are suitable for the desired output voltage and current.

  • To troubleshoot issues with the LA5759-MDB-E, start by checking the input voltage, output voltage, and current. Verify that the component values and PCB layout meet the recommended specifications. Use an oscilloscope to check for voltage ripple, noise, or oscillations. Also, check for thermal issues by measuring the IC temperature and ensuring proper heat sinking.

  • Yes, when using LA5759-MDB-E in a design, it's essential to consider EMI/EMC. Use a shielded inductor, keep the PCB layout compact, and use a common-mode choke to reduce EMI. Also, ensure that the input and output capacitors are selected to meet the recommended specifications for EMI filtering.