36V input, 600mA, Synchronous, Step-down Switching Regulator
S-8580/1 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.
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Reduces the footprint of a switching regulator
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.
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.
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.
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 | |
|
|
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