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参数资料
| 型号： | MAX1921 |
| 厂商： | Maxim Integrated Products, Inc. |
| 元件分类： | DC/DC变换器 |
| 英文描述： | Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 |
| 中文描述： | 低电压、400mA、降压型DC-DC转换器，SOT23封装 |
| 文件页数： | 4/9页 |
| 文件大小： | 370K |
| 代理商： | MAX1921 |
M
Low-Voltage, 400mA Step-Down
DC-DC Converters in SOT23
4
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(C
IN
= 2.2μF ceramic, Circuit of Figure 1, components of Table 1, unless otherwise noted.)
10,000
1
0.1
1
100
1000
SWITCHING FREQUENCY vs. LOAD
(V
OUT
= 1.8V)
10
100
1000
M
LOAD (mA)
S
10
V
IN
= 3.3
10,000
1
0.1
1
100
1000
SWITCHING FREQUENCY vs. LOAD
(V
OUT
= 1.5V)
10
100
1000
M
LOAD (mA)
S
10
V
IN
= 3.3
NO LOAD SUPPLY CURRENT
vs. SUPPLY VOLTAGE
M
SUPPLY VOLTAGE (V)
N
μ
A
5..0
4.5
4.0
3.5
3.0
2.5
2.0
10
100
1000
10,000
1
1.5
5.5
V
OUT
= 3.3V
V
OUT
= 2.5V
V
OUT
= 1.5V
LIGHT-LOAD SWITCHING WAVEFORM
V
OUT
AC-COUPLED
5mV/div
V
2V/div
1
μ
s/div
V
IN
= 3.3V, V
OUT
= 1.5V,
I
LOAD
= 40mA
MEDIUM-LOAD SWITCHING WAVEFORM
V
OUT
AC-COUPLED
5mV/div
V
2V/div
1
μ
s/div
V
IN
= 3.3V, V
OUT
= 1.5V,
I
LOAD
= 250mA
SOFT-START AND SHUTDOWN RESPONSE
V
1V/div
I
IN
100mA/div
V
5V/div
200
μ
s/div
V
IN
= 3.3V, V
OUT
= 1.5V,
R
LOAD
= 6
MEDIUM-LOAD
LINE-TRANSIENT RESPONSE
V
AC-COUPLED
200mV/div
V
AC-COUPLED
5mV/div
4
μ
s/div
V
IN
= 3.8V to 4.2V,
V
OUT
= 1.5V, I
LOAD
= 250mA
LIGHT-LOAD
LINE-TRANSIENT RESPONSE
V
IN
AC-COUPLED
200mV/div
V
OUT
AC-COUPLED
5mV/div
4
μ
s/div
V
IN
= 3.8V to 4.2V,
V
OUT
= 1.5V, I
LOAD
= 20mA
LOAD-TRANSIENT RESPONSE
V
AC-COUPLED
100mV/div
I
LOAD
200mA/div
I
L
200mA/div
40
μ
s/div
V
IN
= 3.3V, V
= 1.5V,
I
LOAD
= 20mA TO 320mA
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1921EUT | PLASTIC ENCAPSULATED DEVICES |
| MAX1920EUT-T | Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 |
| MAX1921EUT-T | Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 |
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| MAX1922ESA | 1A Current-Limited Switch for 2 USB Ports |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1921EUT15 | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE 400MA STEP-DOWN DC-DC - Cut Tape Product |
| MAX1921EUT15+ | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE 400MA STEP-DOWN DC-DC - Rail/Tube |
| MAX1921EUT15+T | 功能描述:直流/直流开关转换器 400mA Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1921EUT15-T | 功能描述:直流/直流开关转换器 400mA Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1921EUT18 | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE 400MA STEP-DOWN DC-DC - Rail/Tube |
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