In addition to our conventional linear and LDO regulators, SII provides a lineup of advanced voltage regulators which feature small packages, low current consumption and high accuracy.
Our lineup includes a product with an output voltage accuracy of ±1.0% and a current consumption of 9 µA with a ripple rejection of 70 dB for a longer battery life, a product that features a small ceramic capacitor and small SNT package for high-density mounting, and a product with 1.0V/1.2 V output voltage, an output current of 1A and a low ON-resistor(low I/O voltage differential).Composite products such as dual-circuit products and products with a built-in voltage detector IC are also available.
SII's voltage regulators provide the extensive support required for new product development.
●Various output currents
Products with output currents up to 250mA, 300mA, 500mA, 800mA, 1A available.
New
up to 500mA S-1155 Series
up to 1A S-1172 Series
●Product with 1.0V / 1.2V output voltage
This is ideal for setting a lower voltage for portable devices.
New
Output voltage 1.0V S-1155 Series
Output voltage 1.0V S-1172 Series
●ON-resistance of 0.24 - 0.54 Ω (low I/O voltage differential)
Longer battery life by using the total battery capacity
●Soft start, includes a discharge shunt circuit
External capacitors can be used to freely specify the rise time of the output voltage.
This can reduce the rush current when the power is turned on or when an ON/OFF pin is turned on.
Up to 300mA S-1137 Series
●Composite products
Products with two circuits, products with a built-in voltage detector IC
SII's voltage regulators can provide a stable, low-noise power supply voltage due to their high ripple rejection of 70 dB or 80 dB.
In spite of the high ripple rejection, these ICs have a low current consumption of 9 µA (70 dB) or 50 µA (80 dB), enabling an extended battery life. The high ripple rejection also makes it possible to maximize noise suppression. These ICs are therefore ideal for mobile phones and other communication devices, as well as AV devices such digital cameras, and can be used to support high-quality product design.
*Ripple included in the input voltage is introduced into the output voltage and its element becomes noise, which may degrade the efficiency of the circuit. In digital signal devices, to reject ripple is to decrease the chance that ripple noise will be introduced into the output voltage, which relates to better ripple rejection characteristics.
To make the volume/size for mounting smaller than ever, we have adopted the newly developed small SNT package, enabling high-density mounting.
The SNT-6A(H) package is also available for applications that require a power dissipation of 500 mW.
- SNT-6A / SNT-6A(H)： 1.6 x 1.8 x 0.5 mm
- SNT-4A： 1.2 x 1.6 x 0.5 mm
- WLP-4B： 0.79 x 1.16 x 0.58 mm
SNT packages are small, lead-type packages that are mounted via their outer leads, enabling the use of automatic image-based testing. This makes them very advantageous for mounting. Also, because the outer leads are connected firmly by soldering, the package can withstand stress caused by board bending.
Ceramic capacitors prevent short circuiting caused by malfunction. They are small and low cost. They also have low ESR to prevent high-frequency noise. SII's voltage regulators enable the use of this kind of secure and externally settable output ceramic capacitor
SII provides a range of voltage regulators with an output voltage accuracy of ±1.0%. With this high output voltage accuracy, the IC can deliver an output voltage which is constantly stable, facilitating circuit design for portable devices.
Monitoring the power supply voltage is simple, reducing the possibility of misdetection during monitoring. At the same time, voltage detector selection is made easier.
