MAX857C/D中文资料PDF规格书
MAX857C/D规格书详情
General Description
The MAX856–MAX859 are high-efficiency, CMOS, step-up, DC-DC switching regulators for small, low input voltage or battery-powered systems. The MAX856/MAX858 accept a positive input voltage between 0.8V and VOUT and convert it to a higher, pin-selectable output voltage of 3.3V or 5V. The MAX857/MAX859 adjustable versions accept 0.8V to 6.0V input voltages and generate higher adjustable output voltages in the 2.7V to 6.0V range. Typical efficiencies are greater than 85. Typical quiescent supply current is 25µA (1µA in shutdown).
The MAX856–MAX859 combine ultra-low quiescent supply current and high efficiency to give maximum battery life. An internal MOSFET power transistor permits high switching frequencies. This benefit, combined with internally set peak inductor current limits, permits the use of small, low-cost inductors. The MAX856/MAX857 have a 500mA peak inductor current limit. The MAX858/MAX859 have a 125mA peak inductor current limit.
Features
♦ 0.8V to 6.0V Input Supply Voltage
♦ 0.8V Typ Start-Up Supply Voltage
♦ 85 Efficiency at 100mA
♦ 25µA Quiescent Current
♦ 1µA Shutdown Mode
♦ 125mA and 500mA Switch-Current Limits Permit
Use of Low-Cost Inductors
♦ Up to 500kHz Switching Frequency
♦ ±1.5 Reference Tolerance Over Temperature
♦ Low-Battery Detector (LBI/LBO)
♦ 8-Pin SO and µMAX Packages
Applications
3.3V to 5V Step-Up Conversion
Palmtop Computers
Portable Data-Collection Equipment
Personal Data Communicators/Computers
Medical Instrumentation
2-Cell & 3-Cell Battery-Operated Equipment
Glucose Meters
产品属性
- 型号:
MAX857C/D
- 功能描述:
直流/直流开关转换器 DICE SALES DICE
- RoHS:
否
- 制造商:
STMicroelectronics
- 最大输入电压:
4.5 V
- 开关频率:
1.5 MHz
- 输出电压:
4.6 V
- 输出电流:
250 mA
- 输出端数量:
2
- 最大工作温度:
+ 85 C
- 安装风格:
SMD/SMT
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MAXIM |
2020+ |
DIP |
4500 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
询价 | ||
MAXIM |
2016+ |
SOP/8 |
6528 |
只做原厂原装现货!终端客户个别型号可以免费送样品! |
询价 | ||
MAXIM |
22+ |
SMD |
6980 |
原装现货,可开13%税票 |
询价 | ||
MAX |
06+ |
原厂原装 |
56 |
只做全新原装真实现货供应 |
询价 | ||
MAX |
21+ |
PDIP |
7 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
MAX |
PDIP |
899933 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
MAXIM |
2015+ |
SOP/DIP |
19889 |
一级代理原装现货,特价热卖! |
询价 | ||
Maxim |
21+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
MAXIM/美信 |
QQ咨询 |
PDIP |
830 |
全新原装 研究所指定供货商 |
询价 | ||
MAXIM |
2016+ |
SOP8 |
5737 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 |