Datasheet > AP1621B-33WA

AP1621B-33WA

更新时间： 2024-10-03 19:49:43

品牌	Logo	应用领域
美台 - DIODES		光电二极管
页数	文件大小	规格书
5页	180K
描述
Switching Regulator/Controller, Voltage-mode, 360kHz Switching Freq-Max, PDSO5,

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技术参数
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AP1621B-33WA 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	TSOP, TSOP5/6,.11,37	Reach Compliance Code：	unknown
风险等级：	5.85	控制模式：	VOLTAGE-MODE
JESD-30 代码：	R-PDSO-G5	JESD-609代码：	e0
端子数量：	5	最高工作温度：	80 °C
最低工作温度：	-30 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSOP	封装等效代码：	TSOP5/6,.11,37
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE
认证状态：	Not Qualified	子类别：	Switching Regulator or Controllers
表面贴装：	YES	最大切换频率：	360 kHz
温度等级：	COMMERCIAL EXTENDED	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING	端子节距：	0.95 mm
端子位置：	DUAL	Base Number Matches：	1

AP1621B-33WA 数据手册

AP1621

PWM/PFM Dual Mode Step-down DC/DC Controller

Features

General Descriptions

The AP1621 series are multi-functional step-down

DC/DC converters with built-in speed, low ON

resistance drivers. A more than 1A output current is

possible using an externally connected transistor,

coil, diode and capacitor.

- Input voltage range:2.2V~7V（V_OUTtype）

- Adjustable version（±2.5%）

- Oscillator frequency: 300KHz（±20%）

- High Efficiency: 92%（typ .）

- Stand-by capability: I_STB＝2µA.（Max .）

- Output voltage type possible（FB）

- Package: SOT23-5

Output voltage is set-up by external resistor（. ±2.5%

accuracy）.

With a 300KHz switching frequency, the size of the

external components can be reduced.

Control switches from PWM to PFM during light

loads with the AP1621（PWM/PFM switchable）and

the series is highly efficient from light loads to large

output currents.

Applications

● Electronic Information Organizers

● Palmtops

● Cellular and portable phones

● Portable Audio Systems

● Various Multi-function Power Supplies

During stand-by time （CE pin “LOW”）,current

consumption is reduced to less than 2µA.

With U.V.L.O internal, the external MOSFET. Will

be forcibly switched off if used below the stipulated

voltage.

Pin Assignment

Pin Descriptions

Pin No.

Function

Name

(Top View)

V _OUTExternal PMOSFET Connection

V_DD

V_OUT

GND Ground

V _DDPower Supply

Chip Enable:

AP1621A

AP1621B

H: Enable

L: Disable

Feedback pin

V_OUT

GND

GND FB

V_DD

SOT23-5

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev.1.2 Dec. 23, 2004

1/5

12 3 4 5

中文翻译

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与AP1621B-33WA相关器件

型号	品牌	获取价格	描述	数据表
AP1621B-33WLA	ICT	获取价格	Dual Switching Controller, 0.1A, 360kHz Switching Freq-Max, PDSO5, LEAD FREE, SOT-23, 5 LE
AP1621BWA	ANACHIP	获取价格	Switching Regulator/Controller, Voltage-mode, 310kHz Switching Freq-Max, PDSO5,
AP1621BWA	ICT	获取价格	Dual Switching Controller, 0.1A, 360kHz Switching Freq-Max, PDSO5, SOT-23, 5 LEAD
AP1621BWLA	DIODES	获取价格	Switching Regulator/Controller, Voltage-mode, 310kHz Switching Freq-Max, PDSO5,
AP1621BWLA	ANACHIP	获取价格	Switching Regulator/Controller, Voltage-mode, 310kHz Switching Freq-Max, PDSO5,
AP1623	ANACHIP	获取价格	PWM Control Step-Down Switching Regulator-Converter
AP1623S	ANACHIP	获取价格	PWM Control Step-Down Switching Regulator-Converter
AP1623SA	ANACHIP	获取价格	PWM Control Step-Down Switching Regulator-Converter
AP1623SL	ANACHIP	获取价格	PWM Control Step-Down Switching Regulator-Converter
AP1623SLA	ANACHIP	获取价格	PWM Control Step-Down Switching Regulator-Converter

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