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參數(shù)資料
| 型號(hào)： | MAX1921 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 |
| 中文描述： | 低電壓、400mA、降壓型DC-DC轉(zhuǎn)換器，SOT23封裝 |
| 文件頁(yè)數(shù)： | 4/9頁(yè) |
| 文件大?。?/td> | 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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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/直流開(kāi)關(guān)轉(zhuǎn)換器 400mA Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| MAX1921EUT15-T | 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 400mA Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)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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