Texas Instruments, LM25576MH/NOPB Step-Down Switching Regulator 3A Adjustable 20-Pin, TSSOP, Buck Controller

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

SIMPLE SWITCHER® Step-Down Regulators, LM557x & LM2557x Series

The LM557x and LM2557x are easy to use high-performance SIMPLE SWITCHER® buck regulators which allow design engineers to design and optimize a robust power supply using a minimum set of components.

Integrated N-channel MOSFET
Ultra-Wide Input Voltage Range up to 42V/75V
Emulated current mode for fast transient response
Adjustable Output Voltage as Low as 1.225V
1.5% Feedback Reference Accuracy
Operating frequency adjustable between 50kHz and 500kHz with single resistor
Adjustable soft-start

SIMPLE SWITCHER® Regulators, Texas Instruments

Use for wide voltage inputs designs up to 75V, and a balance between ease of use and flexibility.

Specifications
Attribute Value
Maximum Output Current 3A
Regulator Function Buck Controller, Inverting
Minimum Input Voltage 6 V
Maximum Input Voltage 42 V
Output Type Adjustable
Mounting Type Surface Mount
Number of Outputs 1
Pin Count 20
Package Type TSSOP
Switching Regulator Yes
Minimum Operating Temperature -40 °C
Efficiency 90%
Length 6.5mm
Dimensions 6.5 x 4.4 x 0.9mm
Height 0.9mm
Maximum Operating Temperature +125 °C
Maximum Switching Frequency 1000 kHz
Width 4.4mm
35 In stock for delivery within 3 working days
Price Each
SGD 8.13
(exc. GST)
SGD 8.70
(inc. GST)
units
Per unit
1 - 9
SGD8.13
10 - 49
SGD7.74
50 - 99
SGD7.37
100 - 249
SGD7.02
250 +
SGD6.68
Due to temporarily constrained supply, RS is unable to accept backorders at this time
Packaging Options:
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