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| 型号： | MAX1951ESA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/15页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 2A 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 5.5 V |
| 输入电压： | 2.6 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-SOIC |
1MHz, All-Ceramic, 2.6V to 5.5V Input,
2A PWM Step-Down DC-to-DC Regulators
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V CC = 3.3V, PGND = GND, FB in regulation, C REF = 0.1μF, T A = -40°C to +85°C , unless otherwise noted.) (Note 3)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
COMP
COMP Transconductance
COMP Clamp Voltage, Low
COMP Clamp Voltage, High
COMP Shutdown Resistance
COMP Shutdown Threshold
COMP Startup Current
From FB to COMP, V COMP = 1.25V
V IN = 2.6V to 5.5V, V FB = 1.3V
V IN = 2.6V to 5.5V, V FB = 1.1V
From COMP to GND, V IN = 2V
When LX starts/stops switching
COMP = GND
MAX1951
MAX1952
COMP rising
COMP falling
40
26.7
0.6
1.97
0.17
14
80
53.3
1.2
2.28
30
1.2
40
μS
V
V
Ω
V
μA
FB
Output Voltage Range
(MAX1951)
When using external feedback resistors to drive FB
0.8
V IN
V
FB Regulation Voltage
(Error Amp Only)
FB Input Resistance
FB Input Bias Current
V COMP = 1V to 2V, V IN = 2.6V to 5.5V
From FB to GND
MAX1951
MAX1952
MAX1952
MAX1951
0.783
1.764
10
-0.1
0.807
1.836
30
+0.1
V
k Ω
μA
LX (Note 4)
LX On-Resistance, PMOS
LX On-Resistance, NMOS
266
206
m Ω
m Ω
LX Current Sense
LX Current-Limit Threshold
From LX to COMP, V IN = 2.6V to 5.5V
Duty cycle = 100%, V IN = 2.6V to 5.5V, high side
0.16
2.4
0.35
4.5
Ω
A
LX Leakage Current
LX Switching Frequency
V IN = 5.5V
V IN = 2.6V to 5.5V
V LX = 5.5V
LX = GND
-10
0.8
10
1.1
μA
MHz
LX Maximum Duty Cycle
V COMP = 1.5V, LX = Hi-Z, V IN = 2.6V to 5.5V
100
%
Note 3: Specifications to -40°C are guaranteed by design and not production tested.
Note 4: The LX output is designed to provide 2.4A RMS current.
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1951ESA-TG05 | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1951EVKIT | 功能描述:直流/直流开关调节器 Evaluation Kit for the MAX1951 MAX1952 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX19526EVKIT+ | 制造商:Maxim Integrated Products 功能描述:ANALOG TO DIGITAL CONVERTER - Boxed Product (Development Kits) |
| MAX19526EXE+ | 功能描述:模数转换器 - ADC Integrated Circuits (ICs) Analog to Digital Converters - IC ADC 12BIT 8CH 40MSPS 144CTBGA RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX19526EXE+T | 功能描述:模数转换器 - ADC Integrated Circuits (ICs) Analog to Digital Converters - IC ADC 12BIT 8CH 40MSPS 144CTBGA RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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