ISL78234中文资料PDF规格书
厂商型号 |
ISL78234 |
参数属性 | ISL78234 封装/外壳为16-VQFN 裸露焊盘;包装为卷带(TR);类别为集成电路(IC) > 稳压器 - DC-DC 开关稳压器;产品描述:IC REG BUCK ADJ 4A 16WFQFN |
功能描述 | 3A and 4A Compact Synchronous Buck Regulators |
文件大小 |
994.3 Kbytes |
页面数量 |
18 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 | 2024-5-13 19:55:00 |
ISL78234规格书详情
The ISL78233, ISL78234 are highly efficient, monolithic,
synchronous step-down DC/DC converters that can deliver 3A
(ISL78233), or 4A (ISL78234) of continuous output current from
a 2.7V to 5.5V input supply. The devices use current mode control
architecture to deliver a very low duty cycle operation at high
frequency with fast transient response and excellent loop stability.
The ISL78233, ISL78234 integrate a very low ON-resistance
P-Channel (35mΩ) high-side FET and N-Channel (11mΩ)
low-side FET to maximize efficiency and minimize external
component count. The 100 duty-cycle operation allows less
than 200mV dropout voltage at 4A output current. The
operation frequency of the Pulse Width Modulator (PWM) is
adjustable from 500kHz to 4MHz. The default switching
frequency of 2MHz is set by connecting the FS pin high.
The ISL78233, ISL78234 can be configured for discontinuous
or forced continuous operation at light load. Forced continuous
operation reduces noise and RF interference, while
discontinuous mode provides higher efficiency by reducing
switching losses at light loads.
Fault protection is provided by internal hiccup mode current
limiting during short circuit and overcurrent conditions. Other
protection, such as overvoltage and over-temperature are also
integrated into the device. A power-good output voltage
monitor indicates when the output is in regulation.
The ISL78233, ISL78234 offers a 1ms Power-good (PG) timer at
power-up. When in shutdown, the ISL78233, ISL78234
discharges the output capacitor through an internal soft-stop
switch. Other features include internal fixed or adjustable
soft-start and internal/external compensation.
The ISL78233, ISL78234 is available in a 3mm x 3mm 16 Ld
Thin Quad Flat Pb-free (TQFN) package with an exposed pad for
improved thermal performance and 1mm maximum height.
The complete converter occupies less than 0.22 in2 area.
The ISL78233, ISL78234 are rated to operate across the
temperature range of -40°C to +125°C.
Features
• 2.7V to 5.5V input voltage range
• Very low ON-resistance FET’s - P-Channel 35mΩ and
N-Channel 11mΩ typical values
• High efficiency synchronous buck regulator with up to 95
efficiency
• -1.2/1 reference accuracy over-temperature/load/line
• Complete BOM with as few as 3 external parts
• Internal soft-start - 1ms or adjustable
• Soft-stop output discharge during disable
• Adjustable frequency from 500kHz to 4MHz - default at
2MHz
• External synchronization up to 4MHz
• Over-temperature, overcurrent, overvoltage and negative
overcurrent protection
• Shared common device pinout allows simplified output
power upgrades over time
• Tiny 3mm x 3mm TQFN package
• AEC-Q100 qualified
Applications
• DC/DC POL modules
• μC/µP, FPGA and DSP power
• Video processor/SOC power
• Li-ion battery powered devices
• Automotive infotainment power
产品属性
- 产品编号:
ISL78234AARZ
- 制造商:
Renesas Electronics America Inc
- 类别:
集成电路(IC) > 稳压器 - DC-DC 开关稳压器
- 系列:
Automotive, AEC-Q100
- 包装:
卷带(TR)
- 功能:
降压
- 输出配置:
正
- 拓扑:
降压
- 输出类型:
可调式
- 输出数:
1
- 电压 - 输入(最小值):
2.7V
- 电压 - 输入(最大值):
5.5V
- 电压 - 输出(最小值/固定):
0.6V
- 电压 - 输出(最大值):
5.5V
- 电流 - 输出:
4A
- 频率 - 开关:
420kHz ~ 4.2MHz
- 同步整流器:
是
- 工作温度:
-40°C ~ 125°C(TA)
- 安装类型:
表面贴装型
- 封装/外壳:
16-VQFN 裸露焊盘
- 供应商器件封装:
16-WFQFN(5x5)
- 描述:
IC REG BUCK ADJ 4A 16WFQFN
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
INTERSIL |
20+ |
QFN16 |
12240 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
RENESAS(瑞萨)/IDT |
23+ |
WQFN16EP(5x5) |
6000 |
询价 | |||
Intersil |
21+ |
16TQFN |
13880 |
公司只售原装,支持实单 |
询价 | ||
Intersil |
20+ |
NA |
90000 |
全新原装正品/库存充足 |
询价 | ||
Renesas Electronics America In |
21+ |
A/N |
11132 |
只做原装,询价必回!!! |
询价 | ||
Renesa |
21+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
Intersil |
17+ |
SMD |
17900 |
电源管理IC开发工具 |
询价 | ||
INTERSIL |
20+ |
QFN16 |
2240 |
诚信经营..品质保证..价格优势 |
询价 | ||
INTERSIL |
17+ |
QFN |
880000 |
明嘉莱只做原装正品现货 |
询价 | ||
Intersil |
23+ |
16TQFN |
9000 |
原装正品,支持实单 |
询价 |