LM2575-12WT

Series: -
Number of Outputs: 1
PWM Type: -
Synchronous Rectifier: No
Operating Temperature: -40°C ~ 85°C
Mounting Type: Through Hole
Type: Step-Down (Buck)
Output Type: Fixed
Current - Output: 1A
Voltage - Output: 12V
Supplier Device Package: TO-220-5
Packaging: Bulk
Package / Case: TO-220-5
Manufacturer: Micrel Inc
Voltage - Input: 4 V ~ 40 V
Frequency - Switching: 42kHz ~ 63kHz


Pinout




Description

The LM2575 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator..The LM2575-12WT belongs to LM2575 series.

Features of the LM2575-12WT are:(1)3.3 V, 5.0 V, 12 V, 15 V, and adjustable output versions;(2)voltage over specified line and load conditions:fixed version: ±3% max. output voltage and adjustable version: ±2% max. feedback voltage;(3)guaranteed 1A output current;(4)wide input voltage range:4V to 40V;(5)wide output voltage range:1.23V to 37V;(6)requires only 4 external components;(7)52kHz fixed frequency internal oscillator;(8)low power standby mode IQ typically <200A;(9)80% efficiency (adjustable version typically >80%);(10)uses readily available standard inductors;(11)thermal shutdown and current limit protection;(12)100% electrical thermal limit burn-in.

The absolute maximum ratings of the LM2575-12WT can be summarized as:(1):the maximum supply voltage is 45V;(2):the ON/OFF pin input voltage is 0.3V V +40V;(3):the output voltage to ground (steady state) is 1V;(4):the power dissipation is internally limited;(5):the storage temperature range 65to +150;(6):the minimum ESD rating C = 100pF, R = 1.5k is 2kV;(7):the the minimum ESD rating FB pin is 1kV;(8):the lead temperature (soldering, 10 sec.) is 260;(9):the maximum junction temperature is 150.

Parameters:

Technical/Catalog Information	LM2575-12WT
Vendor	Micrel Inc
Category	Integrated Circuits (ICs)
Type	Step-Down (Buck)
Number of Outputs	1
Voltage - Input	4 ~ 40 V
Voltage - Output	12V
Current - Output	1A
Power - Output	-
Package / Case	TO-220-5 (Straight Leads)
Packaging	Bulk
Internal Switch(s)	Yes
Synchronous	-
Rds (On)	-
Operating Temperature	-40°C ~ 85°C
Frequency - Switching	42kHz ~ 63kHz
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	LM2575 12WT LM257512WT