参数资料
型号: IP1837TRPBF
厂商: International Rectifier
文件页数: 1/40页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 35A LGA
标准包装: 2,000
系列: iPOWIR™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.6 V ~ 12 V
输入电压: 1.5 V ~ 16 V
PWM 型: 电压模式
频率 - 开关: 250kHz ~ 1.5MHz
电流 - 输出: 35A
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: 17-LLGA
包装: 带卷 (TR)
供应商设备封装: 17-LGA(7.65x7.65)
Highly ? Integrated ? 35A Single ‐ input ? Voltage, ??
Synchronous ? Buck ? Regulator ?
iP1837
FEATURES ?
? Wide ? input ? application ? 1.5V ― 16V ?
? Single ? 3.3V ? or ? single ? 5V ? application ? ?
? Output ? Voltage ? Range: ? 0.6V ? to ? 0.75*Vin ?
? 0.5% ? accurate ? Reference ? Voltage ?
? Programmable ? Switching ? Frequency ? up ? to ? 1.5MHz ?
? Programmable ? Soft ‐ Start ?
? Enable ? input ? with ? Voltage ? Monitoring ? Capability ?
? Remote ? Sense ? Amplifier ? with ? True ? Converter ?
Voltage ? Sensing ??
? Thermally ? compensated ? Hiccup ? Mode ??
Over ? Current ? Protection ?
? Over ‐ voltage ? protection ?
? Pre ‐ Bias ? Start ? up ?
? Body ? Braking ? to ? improve ? transient ?
? Integrated ? MOSFET ? drivers ? and ? Bootstrap ? diode ??
? Operating ? temp: ?‐ 40 o C<Tj<125 o C ?
? Thermal ? Shut ? Down ?
? Power ? Good ? Output ? with ? Window ? Comparator ??
? Small ? Size ? 7.7mmx7.7mm ? LGA ?
? Halogen ? Free, ? Pb ‐ Free ?? and ? RoHS ? Compliant ?
BASIC ? APPLICATION ?
?
?
?
?
DESCRIPTION ?
The ? iP1837 ? iPOWIR TM ? is ? an ? easy ‐ to ‐ use, ? fully ? integrated ??
and ? highly ? efficient ? DC/DC ? regulator. ? The ? onboard ? PWM ?
controller ? and ? MOSFETs ? make ? iP1837 ? a ? space ‐ efficient ?
solution, ? providing ? accurate ? power ? delivery ? for ? low ? output ?
voltage ? and ? high ? current ? applications. ?
iP1837 ? is ? a ? versatile ? regulator ? which ? offers ? programmability ?
of ? switching ? frequency ? and ? current ? limit ? while ? operating ? in ?
wide ? input ? and ? output ? voltage ? range. ?
The ? switching ? frequency ? is ? programmable ? from ? 250kHz ? to ?
1.5MHz ? for ? an ? optimum ? solution. ??
It ? also ? features ? important ? protection ? functions, ? such ? as ??
Pre ‐ Bias ? startup, ? hiccup ? current ? limit ? and ? thermal ?
shutdown ? to ? give ? required ? system ? level ? security ? in ? the ?
event ? of ? fault ? conditions. ?
APPLICATIONS ?
? Server ? Application ?
? Netcom ? Applications ?
? Embedded ? Telecom ? Systems ?
? Distributed ? Point ? of ? Load ? Power ? Architectures ?
?
?
?
97
96
95
94
93
92
91
Vin=12V
?
90
Vcc=3.3V
Room Temperature
?
iP1837
89
88
200 LFM airflow
Includes biasing loss as well as inductor
losses and stray PCB losses
87
?
3.5
7
10.5
14
17.5
21
24.5
28
31.5
35
Iout (A)
?
?
?
?
Vo=3.3V
?
Vo=1.8V
Figure ? 1 ? : ? iP1837 ? Basic ? Application ? Circuit ??
Figure ? 2: ? iP1837 ? Efficiency ?
1
March ? 5, ? 2012 ?? | ?? V1.26 ???
97600
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