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ISL6228HRTZ中文资料PDF规格书
厂商型号 |
ISL6228HRTZ |
参数属性 | ISL6228HRTZ 封装/外壳为28-WFQFN 裸露焊盘;包装为管件;类别为集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器;产品描述:IC REG CTRLR BUCK 28TQFN |
功能描述 | High-Performance Dual-Output Buck Controller for Notebook Applications |
文件大小 |
467.95 Kbytes |
页面数量 |
16 页 |
生产厂商 | Intersil Corporation |
企业简称 |
Intersil【瑞萨电子】 |
中文名称 | 瑞萨电子株式会社官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-5-22 12:31:00 |
ISL6228HRTZ规格书详情
The ISL6228 IC is a dual channel synchronous-buck PWM
controller featuring Intersil's Robust Ripple Regulator (R3)
technology that delivers truly superior dynamic response to
input voltage and output load transients. Integrated
MOSFET drivers and bootstrap diodes result in fewer
components and smaller implementation area.
Intersil’s R3 technology combines the best features of fixedfrequency and hysteretic PWMs while eliminating many of
their shortcomings. R3 technology employs an innovative
modulator that synthesizes an AC ripple voltage signal VR,
analogous to the output inductor ripple current. The AC signal
VR enters a window comparator where the lower threshold is
the error amplifier output VCOMP, and the upper threshold is a
programmable voltage reference VW, resulting in generation
of the PWM signal. The voltage reference VW sets the
steady-state PWM frequency. Both edges of the PWM can be
modulated in response to input voltage transients and output
load transients, much faster than conventional fixedfrequency PWM controllers. Unlike a conventional hysteretic
converter, each channel of the ISL6228 has an error amplifier
that provides ±1 voltage regulation at the FB pin.
The ISL6228 has a 1.5ms digital soft-start and can be
started into a pre-biased output voltage. A resistor divider is
used to program the output voltage setpoint. The ISL6228
operates in continuous-conduction-mode (CCM) in heavy
load, and in diode-emulation-mode (DEM) in light load to
improve light-load efficiency. In CCM, the controller always
operates as a synchronous rectifier. In DEM, the low-side
MOSFET is permitted to stay off, blocking negative current
flow into the low-side MOSFET from the output inductor.
Features
• High performance R3 technology
• Fast transient response
• ±1 regulation accuracy: -40°C to +100°C
• Individual power stage input rail for each channel
• Wide input voltage range: +3.3V to +25V
• Output voltage range: +0.6V to +5V
• Diode emulation mode for increased light load efficiency
• Programmable PWM frequency: 200kHz to 600kHz
• Pre-biased output start-up capability
• Integrated MOSFET drivers and bootstrap diode
• Internal digital soft-start
• Power good monitor
• Fault protection
- Undervoltage protection
- Soft crowbar overvoltage protection
- Inductor DCR overcurrent protection
- Over-temperature protection
- Fault identification by PGOOD pull-down resistance
• Pb-free (RoHS compliant)
Applications
• General purpose switching buck regulators
• PCI express graphical processing unit
• Auxiliary power rail
• VRM
• Network adaptor
产品属性
- 产品编号:
ISL6228HRTZ
- 制造商:
Renesas Electronics America Inc
- 类别:
集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器
- 系列:
Robust Ripple Regulator™ (R3)
- 包装:
管件
- 输出类型:
晶体管驱动器
- 功能:
降压
- 输出配置:
正
- 拓扑:
降压
- 输出阶段:
1
- 电压 - 供电 (Vcc/Vdd):
3.3V ~ 25V
- 频率 - 开关:
200kHz ~ 600kHz
- 同步整流器:
是
- 时钟同步:
无
- 控制特性:
使能,频率控制,相位控制,电源良好
- 工作温度:
-10°C ~ 100°C(TA)
- 安装类型:
表面贴装型
- 封装/外壳:
28-WFQFN 裸露焊盘
- 供应商器件封装:
28-QFN(4x4)
- 描述:
IC REG CTRLR BUCK 28TQFN
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
Renesas Electronics America In |
22+/23+ |
28-QFN(4x4) |
7500 |
原装进口公司现货假一赔百 |
询价 | ||
INTERSIL |
19+ |
QFN28 |
29600 |
绝对原装现货,价格优势! |
询价 | ||
INTERSIL |
21+ |
QFN |
6500 |
全新原装现货 |
询价 | ||
intersil |
23+ |
QFN28 |
8000 |
全新原装现货,欢迎来电咨询 |
询价 | ||
Intersil |
21+ |
28TQFN |
13880 |
公司只售原装,支持实单 |
询价 | ||
23+ |
N/A |
37860 |
正品授权货源可靠 |
询价 | |||
INTERSIL |
23+ |
NA/ |
4068 |
原装现货,当天可交货,原型号开票 |
询价 | ||
INTERSIL |
23+ |
QFN |
9280 |
价格优势/原装现货/客户至上/欢迎广大客户来电查询 |
询价 | ||
INTERSIL |
21+ |
QFP28 |
9080 |
只做原装,质量保证 |
询价 | ||
INTERSIL |
23+ |
QFN |
15000 |
代理原装现货,价格优势 |
询价 |