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S-8338

ABLIC
Part Number S-8338
Manufacturer ABLIC
Published Mar 19, 2018
Description SWITCHING REGULATOR CONTROLLER
Detailed Description S-8337/8338 Series www.ablicinc.com © ABLIC Inc., 2003-2010 STE
Datasheet PDF File S-8338 PDF File

S-8338
S-8338


Overview
S-8337/8338 Series www.
ablicinc.
com © ABLIC Inc.
, 2003-2010 STEP-UP, 1.
2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER Rev.
4.
0_02 The S-8337/8338 Series is a CMOS step-up switching regulator which mainly consists of a reference voltage circuit, an oscillator, an error amplifier, a PWM controller, an under voltage lockout circuit (UVLO), and a timer latch short-circuit protection circuit.
Because its minimum operating voltage is as low as 1.
8 V, this switching regulator is ideal for the power supply of an LCD or for portable systems that operate on a low voltage.
The internal oscillation frequency can be set up to 1.
133 MHz, via the resistor connected to the ROSC pin.
With the S-8337 Series, the maximum duty ratio of PWM control can be controlled by the resistor connected to the RDuty pin.
With the S-8338 Series, the maximum duty ratio is fixed (to 88%).
The phase compensation and gain value can be adjusted according to the values of the resistor and capacitor conne...


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