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R1230D181B-TR A18B 的参数 |
控制方式
MODE |
pwm/vfm |
输入电压VIN
Input Voltage |
2.3~5.5V |
输出电压VOUT
Output Voltage |
1.8V |
输出电流IOUT
Output Current |
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震荡频率FOSC
Oscillation Frequency |
800KHZ |
内置FET
Built-in FET |
PMOS/NMOS |
Description & Applications |
PWM/VFM step-down DC/DC converter with Synchronous Rectifier ? Built-in Driver ON Resistance P-channel 0.35?, N-channel 0.45? (at VIN=3V) ? Built-in Soft-start Function (TYP. 1.5ms), and Latch-type Protection Function (Delay Time; TYP. 1.5ms) ? Two choices of Oscillator Frequency 500kHz, 800kHz ? PWM/VFM alternative with MODE pin PWM operation; MODE pin at “L”, ?VFM operation; MODE pin at “H” High Efficiency TYP. 90% Output Voltage Stepwise Setting with a step of 0.1V in the range of 1.2V ~ 4.0V(XX1A/B Type) or adjustable in the range of 0.8V to VIN(001C/D Type) ? High Accuracy Output Voltage ±2.0%(XX1A/B Type) ? Package ? ? ? ? ? SON8 (Max height 0.9mm, thin type) ? Power source for portable equipment. |
描述与应用 |
PWM/ VFM降压同步整流DC/ DC转换器 ?内置驱动器导通电阻0.35Ω,P沟道N沟道0.45Ω(VIN= 3V) ?内置软启动功能(典型值1.5ms的),锁存型保护功能(延时; TYP。为1.5ms) ?选择的振荡器频率500kHz,800kHz的 ?PWM/ VFM替代MODE引脚PWM操作; MODE引脚在“L” ?衡工量值式操作; MODE引脚在“H” ?????高效率TYP。 90%的 ???????输出电压逐步设置每步0.1V的范围1.2V?4.0V(XX1A/ B型) ?????????????????????????????或可调范围为0.8V至VIN(001C/ D型) ?高精度输出电压±2.0%(XX1A/ B型) ?包装?????SON8(最大高度0.9毫米的,超薄型) ?用于便携式设备的电源。 |
技术文档PDF下载 |
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相关型号列表 |
型号 |
标记/丝印/代码 |
厂家 |
批号 |
封装 |
数量 |
描述 |
详细资料 |
R1230D001C-TR |
A01C |
RICOH |
05+ |
SON-8 |
30 |
电源管理ICPower Management IC/PMIC-DC/DC降压转换器DC/DC Step-Down Converter |
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R1230D001D |
A01D |
RICOH |
05+ |
SON-8 |
3000 |
电源管理ICPower Management IC/PMIC-DC/DC降压转换器DC/DC Step-Down Converter |
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R1230D181B-TR |
A18B |
RICOH |
05NOPB1800 |
SON-8 |
2800 |
电源管理ICPower Management IC/PMIC-DC/DC降压转换器DC/DC Step-Down Converter |
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R1230D331B-TR |
A33B |
RICOH |
05NOPB500 |
SON-8 |
1300 |
电源管理ICPower Management IC/PMIC-DC/DC降压转换器DC/DC Step-Down Converter |
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R1232D181A |
K18A |
RICOH |
05+ |
SON-8 |
0 |
|
查看 |
R1232D181A |
K18A |
RICOH |
05+ |
SON-8 |
0 |
|
查看 |
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