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Details for LM2575WU by Microchip Technology
LM2575
LM2575WU
Buy Directly from Microchip Technology Inc (0 in stock) $2.2200
1A Step-Down SMPS Regulator
LM2575WU image

LM2575WU by Microchip Technology

1A Step-Down SMPS Regulator
Features
3.3V, 5V, 12V, and adjustable output versions
Voltage over specified line and load conditions:
Fixed version: ±3% max. output voltage
Adjustable version: ±2% max. feedback voltage
Guaranteed 1A output current
Wide input voltage range: 4V to 40V
Wide output voltage range: 1.23V to 37V
Requires only 4 external components
52kHz fixed frequency internal oscillator
Low power standby mode IQ typically < 200µA
80% efficiency (adjustable version typically > 80%)
Uses readily available standard inductors
Thermal shutdown and current limit protection
100% electrical thermal limit burn-in
Description

The LM2575 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, 5V, 12V, or 15V fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 1A load with excellent line and load regulation.

These regulators are simple to use because they require a minimum number of external components and include internal frequency compensation and a fixed-frequency oscillator.

The LM2575 series offers a high efficiency replacement for popular three-terminal adjustable linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.

A standard series of inductors available from several different manufacturers are ideal for use with the LM2575 series. This feature greatly simplifies the design of switch-mode power supplies.

The feedback voltage is guaranteed to ±2% tolerance for adjustable versions, and the output voltage is guaranteed to ±3% for fixed versions, within specified input voltages and output load conditions. The oscillator frequency is guaranteed to ±10%. External shutdown is included, featuring less than 200µA standby current. The output switch includes cycle-by-cycle current limiting and thermal shutdown for full protection under fault conditions.

Specifications
Regulator Type:
Step Down (Buck)
Switching Frequency (kHz):
52
Input Voltage Range Min:
4
Input Voltage Range Max:
40
Output Current:
1000
Temp Range Min:
-40
Temp Range Max:
125
Vout Min (V):
1.23
Quiescent Current (mA) typ:
10
SHUTDOWN Current (µA) (Typ):
50
# of Outputs:
1
Vfb (V):
1.23
Duty Cycle Max (%):
0.98
Temperature Range:
-40C to +85C
Alternate Descriptions
1A Step-Down SMPS Regulator RS Components
BUCK, 40VIN, 52KHZ, 1A, ADJ, 5TO263; Topology:Buck (Step Down); Input Voltage Min:4V; Input Voltage Max:40V; No. of Outputs:1Outputs; DC / DC Converter IC Case:TO-263; No. of Pins:5Pins; Output Current:1A; Output Voltage Min:1.23V; RoHS Compliant: Yes Newark Electronics
1A STEP-DOWN SMPS REGULATOR Avnet America
1A Step-Down SMPS Regulator Microchip Technology Inc
1A STEP-DOWN SMPS REGULATOR Avnet Europe
LM2575 Series 1 A 52 KHz Adj. Output Voltage Step-Down Buck Regulator - TO-263-5 Future Electronics
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Details for LM2575WU by Microchip Technology
LM2575
LM2575WU
Buy Directly from Microchip Technology Inc (0 in stock) $2.2200
BUCK 40VIN 52KHZ 1A ADJ 5TO263
LM2575WU image

LM2575WU by Microchip Technology

BUCK 40VIN 52KHZ 1A ADJ 5TO263
Features
1.23V to 37V
4V to 40V
52kHz fixed frequency internal oscillator
80% efficiency (adjustable version typically >80%)
Adjustable version: u00b12% max. feedback voltage
Fixed version: u00b13% max. output voltage
Guaranteed 1A output current
Low power standby mode IQ typically <200u00b5A
Requires only 4 external components
Thermal shutdown and current limit pro
Uses readily available standard inductors
Voltage over specified line and load conditions:
Wide input voltage range
Wide output voltage range
Part Information
LM2575WU image
RoHS Compliant
Description
The LM2575 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, 5V, 12V, fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 1A load with excellent line and load regulation. These regulators are simple to use because they require a minimum number of external components and include internal frequency compensation and a fixed-frequency oscillator. The LM2575 series offers a high efficiency replacement for popular three-terminal adjustable linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required. A standard series of inductors available from several different manufacturers are ideal for use with the LM2575 series. This feature greatly simplifies the design of switch- mode power supplies. The feedback voltage is guaranteed to ±2% tolerance for adjustable versions, and the output voltage is guaranteed to ±3% for fixed versions, within specified input voltages and output load conditions. The oscillator frequency is guaranteed to ±10%. External shutdown is included, featuring less than 200µA standby current. The output switch includes cycle-by-cycle current limiting and thermal shutdown for full protection under fault conditions.
Specifications
Topology:
Buck (Step Down)
Input Voltage Min:
4V
Input Voltage Max:
40V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
TO-263
No. of Pins:
5Pins
Output Current:
1A
Output Voltage Min:
1.23V
Output Voltage Max:
37V
Switching Frequency:
52kHz
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (27-Jun-2018)
Base Number:
2575
Operating Temperature Min:
-40°C
Operating Temperature Range:
-40°C to +85°C
Primary Input Voltage:
40V
Alternate Descriptions
1A Step-Down SMPS Regulator RS Components
BUCK, 40VIN, 52KHZ, 1A, ADJ, 5TO263; Topology:Buck (Step Down); Input Voltage Min:4V; Input Voltage Max:40V; No. of Outputs:1Outputs; DC / DC Converter IC Case:TO-263; No. of Pins:5Pins; Output Current:1A; Output Voltage Min:1.23V; RoHS Compliant: Yes Newark Electronics
1A STEP-DOWN SMPS REGULATOR Avnet America
1A Step-Down SMPS Regulator Microchip Technology Inc
1A STEP-DOWN SMPS REGULATOR Avnet Europe
LM2575 Series 1 A 52 KHz Adj. Output Voltage Step-Down Buck Regulator - TO-263-5 Future Electronics