Datasheet > RP504K121D-E2

RP504K121D-E2

更新时间： 2024-11-13 19:09:51

品牌	Logo	应用领域
理光 - RICOH		开关光电二极管
页数	文件大小	规格书
29页	795K
描述
Switching Controller, Voltage-mode, 0.9A, 2550kHz Switching Freq-Max, CMOS, PDSO6, 1.20 X 1.60 MM, HALOGEN FREE AND ROHS COMPLIANT, DFN-6

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RP504K121D-E2 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	DFN
包装说明：	VSON,	针数：	6
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.58
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER	控制模式：	VOLTAGE-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	5.5 V
最小输入电压：	2.3 V	标称输入电压：	3.6 V
JESD-30 代码：	R-PDSO-N6	JESD-609代码：	e4
长度：	1.6 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	6
最高工作温度：	85 °C	最低工作温度：	-40 °C
最大输出电流：	0.9 A	标称输出电压：	1.2 V
封装主体材料：	PLASTIC/EPOXY	封装代码：	VSON
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, VERY THIN PROFILE
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
座面最大高度：	0.4 mm	表面贴装：	YES
切换器配置：	BOOST	最大切换频率：	2550 kHz
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	Gold (Au)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	1.2 mm
Base Number Matches：	1

RP504K121D-E2 数据手册

RP504x SERIES

600mA^Step-down DC/DC Converter with Synchronous Rectifier

NO.EA-259-130520

OUTLINE

The RP504x Series are low supply current CMOS-based 600mA^step-down DC/DC Converters with

synchronous rectifier. Each of these ICs consists of an oscillator, a reference voltage unit, an error amplifier, a

switching control circuit, a mode control circuit(Ver.A, D), a soft-start circuit, a "latch type" protection circuit, an

under voltage lockout (UVLO) circuit, and switching transistors. A low ripple, high efficiency synchronous rectifier

step-down DC/DC converter can be easily composed of this IC with only an inductor and capacitors. Since

packages are SOT-23-5, DFN1616-6B, DFN(PLP)1216-6F, high density mounting on boards is possible.

As protection circuits, the RP504x Series contain a current limit circuit which limits the Lx peak current in each

clock cycle, and a latch type protection circuit which latches the built-in driver to the OFF state if the load current

exceeds the limit value or the output short continues for a specified time (the protection delay time). The latch

protective circuit can be released by once putting the IC into the standby mode with the CE pin and then into the

active mode, or, by turning the power off and back on. Setting the supply voltage lower than the UVLO detector

threshold can also release the latch protective circuit.

In terms of the output voltage, since the feedback resistances are built-in, the voltage is fixed internally. 0.1V

step output can be set by laser-trim and 1.5% or 18mV tolerance depending on the output voltage is

guaranteed. By inputting a signal to a MODE pin, the RP504x Series can be switched between PWM/VFM auto

switching control and Forced PWM control. PWM/VFM auto switching control switches to high-efficiency VFM

mode in low output current. Forced PWM control switches to fixed-frequency Forced PWM mode for reducing

noise in low output current.

)This is an approximate value, because output current depends on conditions and external parts.

FEATURES

 Supply Current...................................................... Typ. 25A(at VFM mode, at no load)

 Standby Current.................................................... Max. 5A

 Input Voltage Range ............................................. 2.3V to 5.5V (V^OUT≧1.0V)

 Output Voltage Range........................................... 0.8V to 3.3V (With a 0.1V step)

 Output Voltage Accuracy....................................... 1.5% (V^OUT1.2V), 18mV (VOUT<1.2V)

 Temperature-Drift Coefficient of Output Voltage... Typ. 40ppm/C

 Oscillator Frequency............................................. Typ. 2.25MHz

 Oscillator Maximum Duty Cycle............................ Min. 100%

 Built-in Driver ON Resistance ............................... Typ. Pch. 0.34Ω、Nch. 0.43Ω(V^IN=3.6V)

 UVLO Detector Threshold..................................... Typ. 2.0V

 Soft Start Time....................................................... Typ. 0.15ms

 L^XCurrent Limit..................................................... Typ. 900mA

 Latch type Protection Circuit................................. Typ. 1.5ms

 Auto discharge function ........................................ Only for D Version

 Two choices of Switching Mode............................ DFN1616-6B and DFN(PLP)1216-6F are available in

adjustable switching control options from PWM/VFM auto switching type or Forced PWM type by using

MODE pin. SOT-23-5 is available in fixed switching control options: PWM/VFM auto switching type for B

version or Forced PWM type for C version.

 Packages .............................................................. SOT-23-5, DFN1616-6B, DFN(PLP)1216-6F

12 3 4 5 6 7...29

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与RP504K121D-E2相关器件

型号	品牌	获取价格	描述	数据表
RP504K121D-TR	RICOH	获取价格	Switching Controller
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