36V input, 600mA, Synchronous, Step-down Switching Regulator

S-8580/1 Series

Step-down switching regulator S-8580, S-8581 series

 Requirement of
24/12V  industrial equipment
,
home facilities, sensors


  • 24V ―step-down― 5.0V
     Downsizing
    step-down circuit


  •  High efficiency
    for saving energy

  •  Lower noise on
    power line

    to enable high-accuracy sensor

  The S-8580/1 Series
is suitable!


High-withstand voltage,
downsizing, high-efficiency
and lower ripple.

Solves these
power supply part issues.

S-8580A A/B S-8581A A/B  Datasheet

S-8580A C/D S-8581A C/D  Datasheet

Reduces the footprint of a switching regulator


dc-dc converter S-8580/1
S-8580/1 package-lineup

Enables more compact application / module

36V(Absolute Maximum Ratings 45V) input and synchronous rectification switching regulator (DC-DC converter) adopt the ultra-small package HSNT-6 (2.46mm x 1.96mm ).
Suitable for industrial equipment, house facilities and house appliance, the S-8580/1 contributes to downsize the machines or modules.

The gull-wing type package, HTMSOP-8 is recommended when the mountability is required.

8580-1_respoond

There is no need for a large capacitor

Slope compensation circuits and phase compensation circuits in the S-8580/1 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-8580/1_ripple

External parts to reduce ripple are not required

The S-8581 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-8580A A/B S-8581A A/B  Datasheet

S-8580A C/D S-8581A C/D  Datasheet

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Applications


Constant-voltage power supply for industrial equipment

Small sensor module, Motor driver, Base station etc.

Constant-voltage power supply for home electric equipment

Fire alarming system, Printers, Water heater, Electronic lock etc.

ABLIC's Switching regulator lineup for general-use


Features


Product name S-8580A A/B
S-8581A A/B
S-8580A C/D
S-8581A C/D
  2.2MHz 400kHz
Input voltage VIN=4.0 to 36.0V VIN=4.0 to 36.0V
FB pin voltage accuracy ±1.5% ±1.5%
Efficiency 91% 95%
Overcurrent protection function 1.2A typ.
(pulse-by-pulse method)
1.2A 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 5.8ms typ. 5.8ms typ.
Operation temperature range Ta = −40°C to +85°C Ta = −40°C to +85°C
Datasheet S-8580A A/B S-8581A A/B  Datasheet S-8580A C/D S-8581A C/D  Datasheet

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