Datasheet > S-8337ABIC-P8T1G

S-8337ABIC-P8T1G

更新时间： 2024-11-06 00:18:11

品牌	Logo	应用领域
精工 - SII		开关
页数	文件大小	规格书
51页	2690K
描述
SWITCHING REGULATOR CONTROLLER

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中文翻译

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数据手册

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S-8337ABIC-P8T1G 数据手册

S-8337/8338 Series

STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL

SWITCHING REGULATOR CONTROLLER

www.sii-ic.com

Rev.4.0_01

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 connected to the CC pin.

Therefore, the operation stability and transient response can be correctly set for each application. The

reference voltage accuracy is as high as 1.0 V 1.5%, and any voltage can be output by using an external

output voltage setting resistor.

In addition, the delay time of the short-circuit protection circuit can be set by using the capacitor connected to

the CSP pin. If the maximum duty condition continues because of short-circuiting, the capacitor externally

connected to the CSP pin is charged, and oscillation stops after a specific time. This condition is cleared by

re-application of power or by setting the switching regulator (S-8338 Series) to the shutdown status. A ceramic

capacitor or a tantalum capacitor is used as the output capacitor, depending on the setting. This controller IC

allows various settings and selections and employs a small package, making it very easy to use.

 Features

1.8 V to 6.0 V

• Low voltage operation:

• Oscillation frequency:

• Maximum duty:

286 kHz to 1.133 MHz (selectable by external resistor)

47 to 88.5% (selectable by external resistor) (S-8337 Series)

Fixed to 88% typ. (S-8338 Series)

1.0 V 1.5%

• Reference voltage:

• UVLO (under-voltage lockout) function:

Detection voltage can be selected from between 1.5 V and 2.3 V in 0.1 V steps.

Hysteresis width can be selected from between 0.1 V and 0.3 V in 0.1 V steps.

• Timer latch short-circuit protection circuit:

Delay time can be set using an external capacitor.

Soft-start time can be selected in three steps, 10 ms, 15 ms, and 20 ms.

• Soft-start function:

• Phase compensation external setting:

Adjustable by connecting resistor and capacitor in series to GND.

• Shutdown function:

S-8338 Series, shutdown current consumption: 1.0 μA max.

• Lead-free, Sn 100%, halogen-free^*1

*1. Refer to “ Product Name Structure” for details.

 Applications

• Power supplies for LCDs and CCDs

• Power supplies for portable equipment

 Packages

• 8-Pin SON(A)

• 8-Pin TSSOP

12 3 4 5 6 7...51

中文翻译

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与S-8337ABIC-P8T1G相关器件

型号	品牌	获取价格	描述	数据表
S-8337ACAA-P8T1G	SII	获取价格	SWITCHING REGULATOR CONTROLLER
S-8337ACAB-P8T1G	SII	获取价格	SWITCHING REGULATOR CONTROLLER
S-8337ACAC-P8T1G	SII	获取价格	SWITCHING REGULATOR CONTROLLER
S-8337ACBA-P8T1G	SII	获取价格	SWITCHING REGULATOR CONTROLLER
S-8337ACBB-P8T1G	SII	获取价格	SWITCHING REGULATOR CONTROLLER
S-8337ACBC-P8T1G	SII	获取价格	SWITCHING REGULATOR CONTROLLER
S-8337ACCA-P8T1G	SII	获取价格	SWITCHING REGULATOR CONTROLLER
S-8337ACCB-P8T1G	SII	获取价格	SWITCHING REGULATOR CONTROLLER
S-8337ACCC-P8T1G	SII	获取价格	SWITCHING REGULATOR CONTROLLER
S-8337ACDA-P8T1G	SII	获取价格	SWITCHING REGULATOR CONTROLLER

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