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ADP1621ARMZ-R7中文资料PDF规格书
ADP1621ARMZ-R7规格书详情
GENERAL DESCRIPTION
The ADP1621 is a fixed-frequency, pulse-width modulation (PWM), current-mode, step-up converter controller. It drives an external n-channel MOSFET to convert the input voltage to a higher output voltage. The ADP1621 can also be used to drive flyback, SEPIC, and forward converter topologies, either isolated or nonisolated.
The ADP1621 eliminates the use of a current-sense power resistor by measuring the voltage drop across the on resistance of the n-channel MOSFET. This technique, allowed up to a maximum voltage of 30 V at the switch node, maximizes efficiency and reduces cost. For switch-node voltages higher than 30 V or for more accurate current limiting, the CS pin can be connected to a current-sense resistor in the source of the MOSFET.
FEATURES
92 efficiency (no sense resistor required)
±1.0 initial accuracy
IC supply voltage range: 2.9 V to 5.5 V
Power-input voltage as low as 1.0 V
Capable of high supply input voltage (>5.5 V)
with an external NPN or a resistor
VIN UVLO and 35 mA shunt regulator
External slope compensation with 1 resistor
Programmable operating frequency
(100 kHz to 1.5 MHz) with 1 resistor
Lossless current sensing for switch-node voltage <30 V
Resistor current sensing for switch-node voltage >30 V
Synchronizable to external clock
Current-mode operation for excellent line and load transient
responses
10 μA shutdown current
Current limit and thermal overload protection
Soft start in 2048 clock cycles
APPLICATIONS
APD bias
Portable electronic equipment
Isolated dc/dc converter
Step-up/step-down dc/dc converter
LED driver for laptop computer and navigation system
LCD backlighting
产品属性
- 型号:
ADP1621ARMZ-R7
- 功能描述:
IC REG CTRLR PWM CM 10-MSOP
- RoHS:
是
- 类别:
集成电路(IC) >> PMIC - 稳压器 - DC DC 切换控制器
- 系列:
-
- 特色产品:
LM3753/54 Scalable 2-Phase Synchronous Buck Controllers
- 标准包装:
1
- 系列:
PowerWise® PWM
- 型:
电压模式
- 输出数:
1 频率 -
- 最大:
1MHz
- 占空比:
81%
- 电源电压:
4.5 V ~ 18 V
- 降压:
是
- 升压:
无
- 回扫:
无
- 反相:
无
- 倍增器:
无
- 除法器:
无
- Cuk:
无
- 隔离:
无
- 工作温度:
-5°C ~ 125°C
- 封装/外壳:
32-WFQFN 裸露焊盘
- 包装:
Digi-Reel®
- 产品目录页面:
1303(CN2011-ZH PDF)
- 其它名称:
LM3754SQDKR
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ADI(亚德诺) |
23+ |
MSOP10 |
8048 |
原厂可订货,技术支持,直接渠道。可签保供合同 |
询价 | ||
ADI |
23+ |
NA |
20000 |
全新原装假一赔十 |
询价 | ||
ADI |
2020+ |
MSOP10 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
ADI/亚德诺 |
20+ |
10-LeadMSOP |
33680 |
ADI全新原装-可开原型号增税票 |
询价 | ||
AD |
2016+ |
MSOP10 |
3000 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
ADI |
1523+ |
MSOP10 |
214 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
ADI |
三年内 |
1983 |
纳立只做原装正品13590203865 |
询价 | |||
ADI/亚德诺 |
24+ |
NA |
5000 |
诚信服务,绝对原装原盘。 |
询价 | ||
ADI(亚德诺) |
24+ |
10000 |
真实原装现货库存,联系徐小姐13714450367,QQ 2850151739 |
询价 | |||
ADI(亚德诺)/LINEAR |
2021+ |
MSOP-10 |
499 |
询价 |