Texas Instruments, LM5574MT/NOPB Step-Down Switching Regulator 500mA Adjustable 16-Pin, TSSOP

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 500mA
Regulator Function Buck Regulator
Minimum Input Voltage 6 V
Maximum Input Voltage 75 V
Output Type Adjustable
Mounting Type Surface Mount
Number of Outputs 1
Pin Count 16
Package Type TSSOP
Switching Regulator Yes
Width 4.4mm
Efficiency 85%
Minimum Operating Temperature -40 °C
Maximum Switching Frequency 500 kHz
Maximum Operating Temperature +125 °C
Dimensions 5 x 4.4 x 0.9mm
Length 5mm
Height 0.9mm
161 In stock for delivery within 3 working days
Price Each
SGD 6.49
(exc. GST)
SGD 6.94
(inc. GST)
units
Per unit
1 - 9
SGD6.49
10 - 49
SGD5.78
50 - 99
SGD4.96
100 - 249
SGD4.75
250 +
SGD4.29
Due to temporarily constrained supply, RS is unable to accept backorders at this time
Packaging Options:
Related Products
The range of highly integrated high-efficiency switching voltage ...
Description:
The range of highly integrated high-efficiency switching voltage regulators from Texas Instruments includes Step-up (Boost), Step-down (Buck), Step-up/down (Boost/Buck) and Inverting types providing efficient solutions for every DC Voltage Regulator application.
Easy-to-use modules for applications requiring high input voltages ...
Description:
Easy-to-use modules for applications requiring high input voltages (up to 36V), frequency sync, and current sharing. Output current up to 10AFrequency Synchronization pin that controls the switching frequencyCurrent Sharing pin for paralleling multiple power modules togetherSuperior Thermal Performance.
Easy-to-use modules for applications requiring high input voltages ...
Description:
Easy-to-use modules for applications requiring high input voltages (up to 42V). Ideal for applications requiring a standard feature setPrecision Enable pin and Soft-Start pinSuperior Thermal Performance.
The easy-to-use inductorless Charge Pump ICs from Texas ...
Description:
The easy-to-use inductorless Charge Pump ICs from Texas Instruments offer a small-sized, simpler solution with high performance. The charge pump or switched-capacitor converter is an alternative solution to inductive DC-DC converters and delivers higher efficiency than Low Dropout (LDO) regulators. ...