参数资料
型号: MIC28510YJL TR
厂商: Micrel Inc
文件页数: 1/30页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 4A 28MLF
标准包装: 1,000
系列: Hyper Speed Control™,SuperSwitcher II™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 可调至 0.8V
输入电压: 4.5 V ~ 5.5 V
PWM 型: 混合物
频率 - 开关: 500kHz
电流 - 输出: 4A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-VQFN 裸露焊盘,28-MLF?
包装: 带卷 (TR)
供应商设备封装: 28-MLF?(5x6)
MIC28510
75V/4A Hyper Speed Control ?
Synchronous DC/DC Buck Regulator
SuperSwitcher II ?
General Description
Features
The Micrel MIC28510 is an adjustable–frequency,
synchronous buck regulator featuring unique adaptive on–
time control architecture. The MIC28510 operates over an
input supply range of 4.5V to 75V and provides a regulated
output of up to 4A of output current. The output voltage is
adjustable down to 0.8V with a guaranteed accuracy of ±1%.
Micrel’s Hyper Speed Control ? architecture allows for ultra–
fast transient response while reducing the output capacitance
and also makes (High V IN ) / (Low V OUT ) operation possible.
This adaptive t ON ripple control architecture combines the
advantages of fixed–frequency operation and fast transient
response in a single device.
The MIC28510 offers a full suite of protection features to
ensure protection of the IC during fault conditions. These
include undervoltage lockout to ensure proper operation
under power–sag conditions, internal soft–start to reduce
inrush current, foldback current limit, “hiccup” mode short-
circuit protection, and thermal shutdown.
All support documentation can be found on Micrel’s web
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Hyper Speed Control ? architecture enables:
? High Delta V operation (V IN = 75V and V OUT = 0.8V)
? Small output capacitance
4.5V to 75V voltage input
4A output current capability, up to 95% efficiency
Adjustable output voltage form 0.8V to 24V
±1% FB accuracy
Any Capacitor ? stable:
? Zero-ESR to high–ESR output capacitors
100kHz to 500kHz switching frequency
Internal compensation
Foldback current–limit and “hiccup” mode short-circuit
protection
Thermal shutdown
Supports safe startup into a pre–biased load
–40 ? C to +125 ? C junction temperature range
28-pin 5mm ? 6mm MLF ? package
site at: www.micrel.com .
Applications
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Distributed power systems
Communications/networking infrastructure
Industrial power
Solar energy
___________________________________________________________________________________________________________
Typical Application
Efficiency (V IN = 48V)
vs. Output Current
100
90
80
70
60
50
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
40
30
20
10
f SW = 250kHz
0.8V
0
1
2
3
4
5
6
OUTPUT CURRENT (A)
Hyper Speed Control, SuperSwitcher II and Any Capacitor are trademarks of Micrel, Inc.
MLF and Micro LeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
March 2012
M9999-030912-A
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MIC28510YML 制造商:Micrel Inc 功能描述:DC-DC Buck Regulator 75V 4A Adj 1% MLF28
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MIC28511-1YFL-TR 功能描述:Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-VFQFN Exposed Pad, FC 制造商:microchip technology 系列:HyperLight Load? 包装:剪切带(CT) 零件状态:停产 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):4.6V 电压 - 输入(最大值):60V 电压 - 输出(最小值/固定):0.8V 电压 - 输出(最大值):51V 电流 - 输出:3A 频率 - 开关:200kHz ~ 680kHz 同步整流器:是 工作温度:-40°C ~ 125°C (TJ) 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘,FC 供应商器件封装:24-FCQFN(3x4) 标准包装:1
MIC28511-2YFL-T5 功能描述:Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-VFQFN Exposed Pad 制造商:microchip technology 系列:Hyper Speed Control? 包装:剪切带(CT) 零件状态:有效 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):4.6V 电压 - 输入(最大值):60V 电压 - 输出(最小值/固定):0.8V 电压 - 输出(最大值):51V 电流 - 输出:3A 频率 - 开关:200kHz ~ 680kHz 同步整流器:是 工作温度:-40°C ~ 125°C (TJ) 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商器件封装:24-FCQFN(3x4) 标准包装:1
MIC28511-2YFL-TR 功能描述:Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 24-VFQFN Exposed Pad, FC 制造商:microchip technology 系列:Hyper Speed Control? 包装:剪切带(CT) 零件状态:停产 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):4.6V 电压 - 输入(最大值):60V 电压 - 输出(最小值/固定):0.8V 电压 - 输出(最大值):51V 电流 - 输出:3A 频率 - 开关:200kHz ~ 680kHz 同步整流器:是 工作温度:-40°C ~ 125°C (TJ) 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘,FC 供应商器件封装:24-FCQFN(3x4) 标准包装:1