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R1270S-A/K中文资料3A 34V输入带PLL同步功能的PWM/VFM降压DC/DC转换器（汽车级）数据手册Nisshinbo规格书
R1270S-A/K规格书详情
描述 Description
The R1270 Series are 34V input (Absolute maximum rating: 36V), CMOS-based PWM/VFM step-down DC/DC converters capable of outputting the maximum 3A* current. The R1270 is selectable from two control types - PWM control or PWM/VFM auto switching control in which mode automatically switches to high-efficiency VFM mode in low output current. The R1270 includes a soft start circuit, a fold-back protection circuit and a latch protection circuit (only A Version). By simply using an inductor, resistors, and capacitors as external components, a high-efficiency step-down DC/DC converter can be easily configured. The R1270 can be synchronized externally by PLL.
*) This is an approximate value, because output current depending on conditions and external parts.
技术参数
- 制造商编号
：R1270S-A/K
- 生产厂家
：Nisshinbo
- 工作温度范围
：-40°C to 105°C (125°C) -40°C to 125°C (150°C) -40°C to 125°C (150°C)
- 电源电流
：Typ. 18 µA
- 待机电流
：Typ. 0 µA
- 输出电压范围
：Externally Adjustable: 0.8 V to 31.6 V
- 反馈电压
：0.8 V
- 反馈电压精度
：±8 mV
- 反馈电压温度系数
：Typ. ±100 ppm/°C (−40°C ≤ Ta ≤ 125°C)
- 输出电流
：3 A
- 振荡器频率
：Externally Adjustable: 300 kHz to 2.4 MHz
- 最大占空比
：Min. 93% (fosc = 300 kHz)
- 封装
：HSOP-18
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
WESTCODE |
2022+ |
800V/1271A |
380 |
长期供应,价格优势,全新原装,支持实单, |
询价 | ||
RICOH |
22+ |
12-WFDFN |
9000 |
原厂渠道,现货配单 |
询价 | ||
WESTCODE/西码 |
22+ |
MODULE |
4500 |
WESTCODE/西码模块系列在售 |
询价 | ||
WESTCODE |
23+ |
模块 |
595 |
全新原装正品,量大可订货!可开17%增值票!价格优势! |
询价 | ||
WESTCODE/西码 |
2023+ |
MODULE |
60 |
主打螺丝模块系列 |
询价 | ||
Nisshinbo Micro Devices Inc. |
25+ |
12-WFDFN 裸露焊盘 |
9350 |
独立分销商 公司只做原装 诚心经营 免费试样正品保证 |
询价 | ||
RICOH |
25+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
WESTCODE |
专业模块 |
MODULE |
8513 |
模块原装主营-可开原型号增税票 |
询价 | ||
WESTCODE |
24+ |
MODULE |
1000 |
全新原装现货 |
询价 | ||
WESTCODE/西码 |
18+ |
MODULE |
225 |
就找我吧!--邀您体验愉快问购元件! |
询价 |
