NCP1522B: Buck Converter, DC-DC, 3 MHz, 600 mA

The NCP1522B step- down DC-DC converter is a monolithic integrated circuit optimized for portable applications powered from one cell Li- Ion or three cell Alkaline/NiCd/NiMH batteries. The part, available in adjustable output voltage versions ranging from 0.9 V to 3.3 V, is able to deliver up to 600 mA. It uses synchronous rectification to increase efficiency and reduce external part count. The device also has a built- in 3 MHz (nominal) oscillator which reduces component size by allowing smaller inductors and capacitors. Automatic switching PWM/PFM mode offers improved system efficiency. Additional features include integrated soft- start, cycle- by- cycle current limiting and thermal shutdown protection. The NCP1522B is available in a space saving, low profile TSOP5 and UDFN6 packages.

特性
  • 94% efficiency, 50 uA quiescent current, 0.3 uA shutdown current
  • 3.0 MHz switching frequency
  • Auto-switching between PWM and PFM mode at light load conditions
  • Adjustable output voltage from 0.9V to 3.3V
优势
  • Extends battery life and 'play-time'
  • Allows use of smaller inductor (down to 1uH) and capacitor
  • Low power consumption at light loading
应用
  • Power supply for application processor
  • Power supply for processor with low core voltage
终端产品
  • Cellular phones, smart phones, and PDAs
  • MP3 players and portable audio systems
  • Digital still cameras and video cameras
应用注释 (1)
Document TitleDocument ID/SizeRevisionRevision Date
How to Apply High Frequency DC to DC Converters in Portable DesignsAND8337/D (89kB)1Nov, 2014
数据表 (1)
Document TitleDocument ID/SizeRevisionRevision Date
Buck Converter, DC-DC, 3 MHz, 600 mANCP1522B/D (185.0kB)0
评估板文档 (5)
Document TitleDocument ID/SizeRevisionRevision Date
NCP1522B Adjustable Output Voltage Step-Down Converter Evaluation Board User's ManualEVBUM2105/D (187.0kB)1
NCP1522BUGEVB Bill of Materials ROHS CompliantNCP1522BUGEVB_BOM_ROHS.PDF (35.0kB)0
NCP1522BUGEVB Gerber Layout Files (Zip Format)NCP1522BUGEVB_GERBER.ZIP (91.0kB)0
NCP1522BUGEVB SchematicNCP1522BUGEVB_SCHEMATIC.PDF (130.0kB)0
NCP1522BUGEVB Test ProcedureNCP1522BUGEVB_TEST_PROCEDURE.PDF (119.0kB)0
封装图纸 (2)
Document TitleDocument ID/SizeRevision
TSOP-5483 (32.5kB)M
UDFN6, 2x2, 0.65P517AB (60.5kB)C
评估板与开发工具
产品状况Compliance简短说明
NCP1522BUGEVBActivePb-free3.0 MHz, 600 mA Step-Down DC-DC Converter Evaluation Board
产品订购型号
产品状况Compliance封装MSL*容器预算价格 (1千个数量的单价)
NCP1522BMUTBGActivePb-free Halide freeUDFN-6517AB1Tape and Reel3000$0.36
NCP1522BSNT1GActivePb-free Halide freeTSOP-5 / SOT-23-54831Tape and Reel3000$0.28
订购产品技术参数
ProductTopologyControl ModeVCC Min (V)VCC Max (V)VO Typ (V)IO Typ (A)Efficiency (%)fSW Typ (kHz)
NCP1522BMUTBGStep-DownVoltage Mode2.75.50.9 to 3.30.6953000
NCP1522BSNT1GStep-DownVoltage Mode2.75.50.9 to 3.30.6953000
Buck Converter, DC-DC, 3 MHz, 600 mA (185.0kB) NCP1522B
How to Apply High Frequency DC to DC Converters in Portable Designs NCP1522B
EVBUM2105/D - 187 NCP1522BUGEVB
NCP1522BUGEVB BOM ROHS NCP1522BUGEVB
NCP1522BUGEVB GERBER NCP1522BUGEVB
NCP1522BUGEVB SCHEMATIC NCP1522BUGEVB
NCP1522BUGEVB TEST PROCEDURE NCP1522BUGEVB
UDFN6, 2x2, 0.65P NCP398
TSOP-5 NUP4004M5