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参数资料
| 型号： | MAX15049EVKIT+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 23/31页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX15049 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 3，非隔离 |
| 输出电压： | 1.2V，1.8V，3.3V |
| 电流 - 输出： | 6A，3A，3A |
| 输入电压： | 5 V ~ 16 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 500kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX15049 |
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MAX15048/MAX15049
Triple-Output Buck Controllers
with Tracking/Sequencing
The desired (compensated) rolloff follows a -20dB/
decade slope (and commensurate 90° of phase shift),
and, in this example, occurs at approximately six times
the uncompensated crossover frequency, f CO . In this
example, a Type II compensator provides stable closed-
loop operation, leveraging the +20dB/decade slope of
the capacitor’s ESR zero (see Figure 4b).
The Type II compensator’s midfrequency gain (approxi-
mately 18dB shown here) is designed to compensate for
the power modulator’s attenuation at the desired cross-
over frequency, f CO (G E/A + G MOD = 0dB at f CO ). In this
example, the power modulator’s inherent -20dB/decade
80
rolloff above the ESR zero (f ZERO, ESR ) is leveraged to
extend the active regulation gain bandwidth of the volt-
age regulator. As shown in Figure 4b, the net result is a
six-time increase in the regulator’s gain bandwidth while
providing greater than 75° of phase margin (the differ-
ence between G E/A and G MOD respective phases at
crossover, f CO ).
Other filter schemes pose their own problems. For
instance, when choosing high-quality filter capacitor(s)
(e.g., MLCCs) and inductor, with minimal parasitics, the
inherent ESR zero can occur at a much higher frequency,
as shown in Figure 4c.
180
60
< G E/A
135
40
20
|G E/A |
f LC
f J
90
45
f ZERO, ESR
0
0
-20
-40
< G MOD
|G MOD |
-45
-90
f ZERO, ESL
-60
-80
FREQUENCY (Hz)
Figure 4b. Power Modulator (Large, Bulk C OUT ) and Type II Compensator Responses
40
|G MOD |
-135
-180
90
20
0
-20
-40
-60
-80
|G MOD | ASYMPTOTE
< G MOD
f LC
f ZERO, ESR
f ZERO, ESL
45
0
-45
-90
-135
-180
FREQUENCY (Hz)
Figure 4c. Power Modulator Gain and Phase Response (High-Quality C OUT )
Maxim Integrated
23
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX15049EVKIT+ | 功能描述:电源管理IC开发工具 MAX15049 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX1504YETL+ | 制造商:Maxim Integrated Products 功能描述:HIGHLY INTEGRATED LINEAR BATTERY CHARGER - Rail/Tube |
| MAX1504YETL+T | 制造商:Maxim Integrated Products 功能描述:HIGHLY INTEGRATED LINEAR BATTERY CHARGER - Tape and Reel |
| MAX1504ZETL+ | 制造商:Maxim from Components Direct 功能描述:THE MAXIM MAX1504ZETL+ IS A BATTERY CHARGER. - Rail/Tube 制造商:Maxim 功能描述:The Maxim MAX1504ZETL+ is a Battery Charger. |
| MAX1504ZETL+D | 制造商:Maxim Integrated Products 功能描述:HIGHLY INTEGRATED LINEAR BATTERY CHARGER - Rail/Tube |
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