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参数资料
| 型号： | MAX8794ETB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/13页 |
| 文件大小： | 0K |
| 描述： | IC DDR LINEAR REG 10-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 转换器，DDR |
| 输入电压： | 1.1 V ~ 3.6 V |
| 输出数： | 1 |
| 输出电压： | 0.5 V ~ 1.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
Low-Voltage DDR Linear Regulator
SHDN
CURRENT LIMIT
200 μ s
OUTPUT OVERLOAD
CONDITION
POWER-GOOD
WINDOW
OUT
2ms STARTUP
DELAY
PGOOD
10 μ s
PROPAGATION
DELAY
10 μ s
PROPAGATION
DELAY
Figure 3. MAX8794 PGOOD and Soft-Start Waveforms
Power-Good (PGOOD)
The MAX8794 provides an open-drain PGOOD output
that goes high 2ms (typ) after the output initially reach-
es regulation during startup. PGOOD transitions to low
after a 10μs delay when either the output goes out of
regulation by ± 150mV, or when the device enters shut-
REFERENCE
VOLTAGE
(V REF )
down. Connect a pullup resistor from PGOOD to V CC
for a logic-level output. Use a 100k Ω resistor to mini-
mize current consumption.
Applications Information
Dynamic Output-Voltage Transitions
By changing the voltage at REFIN, the MAX8794 can
be used in applications that require dynamic output-
voltage changes between two set points (graphics
C REFIN
R1
R2
REFIN
MAX8794
processors). Figure 4 shows a dynamically adjustable
resistive voltage-divider network at REFIN. Using an
external signal MOSFET, a resistor can be switched in
V OUT(HIGH)
V OUT(LOW)
R3
and out of the REFIN resistor-divider, changing the volt-
age at REFIN. The two output voltages are determined
( )
by the following equations:
V OUT(LOW) = V REF
R2
R1 + R2
V OUT ( LOW ) = V REF ?
? R 1 + R 2 ?
? R 2 ?
?
V OUT(HIGH) = V REF
(R2 + R3)
R1 + (R2 + R3)
( R 2 + R 3 ) ? ?
? ? R 1 + ( R 2 + R 3 ) ? ?
?
V OUT ( HIGH ) = V REF ?
Figure 4. Dynamic Output-Voltage Change
10
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相关代理商/技术参数 |
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| MAX8795AETJ+T | 功能描述:LCD 驱动器 TFT-LCD DC/DC Converter RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| MAX8795AEVKIT+ | 功能描述:电源管理IC开发工具 MAX8795A 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 |
| MAX8795AGCJ/V+ | 功能描述:LCD 驱动器 TFT-LCD DC/DC Converter RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
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