S-13R1F13-I4T1U3

Current - Output:	150mA
Supplier Device Package:	SNT-4A
Package / Case:	4-SMD, Flat Leads
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Overcurrent, Reverse Current, Thermal Shutdown
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Supply (Max):	9µA
Current - Quiescent (Iq):	1µA
Series:	S-13R1
Voltage Dropout (Max):	0.78V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.3V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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The S-13R1F13-I4T1U3 is a high efficiency fixed mode switch regulator. It offers precision power regulation with a fast transient response and low output noise, making it particularly suitable for use in high power applications. In addition, it has a wide input voltage range, enabling operation over a broad range of input voltages. This makes it ideal for use in systems with varying input voltage levels.

The S-13R1F13-I4T1U3 is a linear regulator, which means that it utilizes a linear control element to maintain a regulated output voltage. The basic architecture of a linear regulator is shown in Figure 1. The linear regulator consists of a control element, such as a transistor, and a feedback loop that controls the amount of current being outputted by the control element. The input to the regulator is compared to the reference voltage and the regulator adjusts the output voltage to match the reference voltage. Therefore, the output voltage is always maintained within a certain range.

Figure 1: The basic architecture of a linear regulator

The S-13R1F13-I4T1U3 utilizes a current mode control topology to provide precise regulation of output voltage in fixed mode operation. This provides an improved output voltage accuracy and stability, as well as improved transient response, compared to traditional voltage mode switching regulators. The current mode control induces a pulse-width modulation (PWM) signal at the comparator of the control loop to adjust the working frequency of the linear regulator to maintain the output voltage regulated. As the error amplifier compares the regulated output voltage with the reference voltage, the output of the error amplifier produces a PWM-like signal that controls the ON/OFF times of the MOSFET used to switch the main current of the linear regulator.

The S-13R1F13-I4T1U3 is especially suited for applications requiring high efficiency and power dense design, including high power off-line supplies, battery-powered equipment and DC/DC converters. It is also well-suited for communication and industrial automation systems where high efficiency, performance and flexibility are important. Furthermore, it offers excellent EMI performance and the highly integrated solution allows very compact designs, reducing system power density, size, and weight.Overall, the S-13R1F13-I4T1U3 is an ideal choice for applications requiring high power density and high efficiency, such as off-line supplies, DC/DC converters, and battery-powered equipment. Thanks to its integrated design, it can provide excellent output voltage accuracy, stability and transient response, making it especially suitable for highly demanding applications.

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