Automotive 125°C operation 36V input 600mA
Step-down Synchronous Rectification

S-19902/3 Series

S-19902_pc-slide-11-en

Requirements of an automotive camera module



  • Changed from
    VGA to 1 or 2 MP
    High resolution


  • Must be blended into the vehicle’s appearance
    Compact size

Shrinking the size
of camera parts


Reduce the overall footprint
of a switching regulator
by up to 35%.

S-19902A/B,S-19903A/B (2.2MHz) datasheet

S-19902C/D,S-19903C/D (400kHz) datasheet

Reduces the footprint of a switching regulator


dc-dc converter for automotive S-19902/3
dc-dc converter for automotive S-19902/3
S-19902 package-lineup

The industry’s smallest package

The automotive-quality 36V input, synchronous rectification and 125℃ operation switching regulator (DC-DC converter) , which can be connected to the battery directly, adopt the industry’s smallest package (3.0mm x 2.0mm).

In addition, our lineup also includes a gull wing package when mountability is a prime concern.

They can be used in a broad range of applications not only in automotive camera modules where compact size is essential, but also in Electronic Control Units (ECU) and sensors.

*Based on our research as of October 2019

S-19902_respoond

There is no need for a large capacitor

Slope compensation circuits and phase compensation circuits in the S-19902/3 Series have been optimized to provide a high transient response.

The external high output capacitors used to compensate for overshoot and undershoot have been downsized, which has also contributed to lowering costs.

S-19902_ripple

External parts to reduce ripple are not required

The S-19903 Series employs a proprietary low-ripple circuit that ensures low ripple without any external parts.

It achieves 9mVp-p across the full load current range including even during PFM control, which is especially prone to ripple.

There is no need to add external parts as a countermeasure to ripple.

S-19902A/B,S-19903A/B (2.2MHz) datasheetS-19902C/D,S-19903C/D (400kHz) datasheet

Purchase Inquiry

Applications


Automotive camera

Check application examples in the block diagram

http://www.ablic.com/en/semicon/applications/automotive-camera/

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automotive-camera_block

ABLIC’s automotive switching regulator lineup


Features


Product name S-19902 A/B
S-19903 A/B
S-19902 C/D
S-19903 C/D
  2.2MHz 400kHz
Input voltage VIN=4.0V to 36.0V VIN=4.0V to 36.0V
FB pin voltage accuracy ±1.5% ±1.5%
Efficiency 91% 95%
Overcurrent protection function 1.2 A typ.
(pulse-by-pulse method)
1.2 A typ.
(pulse-by-pulse method)
Thermal shutdown function 170°C typ.
(detection temperature)
170°C typ.
(detection temperature)
Short-circuit protection function Hiccup control / Latch control
(selectable)
Hiccup control / Latch control
(selectable)
duty cycle 100% duty cycle operation 100% duty cycle operation
Soft-start function 5.8 ms typ. 5.8 ms typ.
Operation temperature range Ta = −40°C to +125°C Ta = −40°C to +125°C
AEC-Q100 In process In process
Datasheet S-19902A/B,S-19903A/B (2.2MHz) datasheet S-19902C/D,S-19903C/D (400kHz) datasheet

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