Automotive, 125°C operation, 5.5V input, 1A, Power Good function,
synchronous step-down switching regulator

S-19954/5 Series

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Meets all the specific requirements of automotive cameras.


  • Downsizes automotive cameras
    with the industry's smallest* package.

  • Contributes to a higher system reliability
    through the Power Good function.

  • Reduces heat loss
    with the industry's top-class* level of high efficiency.

Automotive, Power Good function, step-down switching regulator

S-19954/5 Series

Product Inquiry

Ideal for automotive cameras with the industry's smallest* package, Power Good function, and high efficiency.

Downsizes automotive cameras with the industry's smallest* package.

The S-19954/5 Series is housed in the HSNT-8(1616)B package (1.6 × 1.6 × t0.41 (max.) mm), which is the industry’s smallest package for 5.5V operation, 1A output, 2.25MHz oscillation frequency, and synchronous step-down switching regulators. With only one inductor and two capacitors as external components, the application circuit is built with the industry’s smallest* mounting area.

The HTMSOP-8 package (2.9 × 4.0 × t0.8 (max.) mm, currently under development), a gull wing type with ease of mounting, is also available for the S-19954/5 Series.
*Based on our research as of January 2024.

Contributes to a higher system reliability through the Power Good function.

The S-19954/5 Series has a Power Good function that monitors the output voltage staying within the normal range. This function enables an error flag that notifies the microcontroller when the output voltage is out of normal range.

Other features including an overcurrent protection circuit, a short-circuit protection circuit, and a thermal shutdown circuit also contribute to a greater system safety.

Reduces heat loss with the industry's top-class* level of high efficiency.

The S-19954/5 Series achieves an industry’s top-class* level of power conversion efficiency of 95% (at a 4V input voltage, 3.3V output voltage, and 200mA output current).
In recent years, automotive cameras have been required to achieve higher pixel density in a smaller housing than what was used before, and thermal design has also become increasingly important. The S-19954/5 Series contributes to the reduction of heat loss.
*Based on our research as of January 2024.

Applications

Automotive camera

  • View Camera Module
  • Sensing Camera Module
  • Drive Recorder
  • Driver Monitoring System

Check application examples in the block diagram≫

Various automotive ECUs

Automotive switching regulator lineup

Specifications

Product name S-19954 S-19955
  Automotive
Control method PWM PWM/PFM switching
Oscillation frequency 2.25MHz typ.
Input voltage 2.7 to 5.5V
VOUT pin detection voltage accuracy ±1.5%
Efficiency 95%
Overcurrent protection function 1.75A typ. (pulse-by-pulse method)
Thermal shutdown function 170°C typ. (detection temperature)
Short-circuit protection function Hiccup control, Latch control (selectable)
Duty ratio 100% duty cycle operation
Output discharge function Selectable
Power Good function Nch open-drain output
Soft-start function 0.35ms typ.
Operation temperature range Ta = -40°C to +125°C
Automotive quality AEC-Q100 in process, PPAP capable
Package HSNT-8(1616)B,
HTMSOP-8 (under development)
Datasheet

Datasheet