S-8521B33MC-ATST2G
SEIKO
SOT23-5
降压开关稳压器控制器IC芯片
企业名:荣盛电子(香港)有限公司
类型:贸易/代理/分销
电话: 0755-82819399
手机:13530050576
联系人:蔡小姐
邮箱:hkrongsheng@163.com
地址:广东深圳门市:新亚洲电子市场一期4C005 公司:福田区中航路鼎城2203
S-8521B33MC-ATST2G
General Description:
The S-8521 Series consists of CMOS step-down switching regulator-controller with PWM/PFM-switched control. These devices contain a reference voltage source, oscillation circuit, error amplifier, and other components.
The S-8521 Series works with either PWM control or PFM control, and can switch from one to other. It normally operates using PWM control with a duty ratio of 25% to 100%, but under a light load, it automatically switched to PFM control with a duty ratio of 25%. This series ensures high efficiency over a wide range of conditions, from standby mode to operation of peripheral equipment.
With the addition of an external Pch Power MOSFET or PNP transistor, a coil, capacitors, and a diode connected externally, these ICs can function as step-down switching regulators. They serve as ideal power supply units for portable devices when coupled with the SOT-23-5 minipackage, providing such outstanding features as low current consumption. Since this series can accommodate an input voltage of up to 16V, it is also ideal when operation via an AC adapter.
Features:
In operation: 60uA max. (A&B Series)
21uA max. (C&D Series)
100uA max. (E&F Series)
When powered off: 0.5uA max.
2.5V to 16V (B, D, F Series)
2.5V to 10V (A, E, C Series)
Selectable between 1.5V abd 6.0V in 0.1V step
25% to 100% PWM/PFM-switched control
180kHz typ. (A&B Series), 60 kHz typ. (C&D Series), or 300 kHz typ. (E&F Series).
8 ms. typ. (A&B Series), 12 ms. typ. (C&D Series), or 4.5 ms. typ. (E&F Series).
4 ms. typ. (A&B Series), 14 ms. typ. (C&D Series), or 2.6 ms. typ. (E&F Series).
Applications:
企业名:荣盛电子(香港)有限公司
类型:贸易/代理/分销
电话: 0755-82819399
手机:13530050576
联系人:蔡小姐
邮箱:hkrongsheng@163.com
地址:广东深圳门市:新亚洲电子市场一期4C005 公司:福田区中航路鼎城2203
友情链接: 深圳市元东发电子有限公司