- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383343 > MAX1973EUB (MAXIM INTEGRATED PRODUCTS INC) Smallest 1A, 1.4MHz Step-Down Regulators PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX1973EUB |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Smallest 1A, 1.4MHz Step-Down Regulators |
| 中文描述： | 2.4 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | MICRO, SOP-10 |
| 文件頁(yè)數(shù)： | 8/15頁(yè) |
| 文件大?。?/td> | 331K |
| 代理商： | MAX1973EUB |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)當(dāng)前第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)
M
Smallest 1A, 1.4MHz Step-Down Regulators
8
_______________________________________________________________________________________
Pin Description
NAME
PIN
MAX1973
MAX1974
FUNCTION
1
FBSEL
FBSEL
Feedback-Mode Selector. Connect FBSEL to GND to set the output voltage to 1.8V
(MAX1973) or 1V (MAX1974). Connect FBSEL to IN to set the output voltage to 2.5V
(MAX1973) or 1.5V (MAX1974). Leave FBSEL unconnected to set the output voltage
using a resistor-divider at FB.
Compensation. Connect a series RC network to GND. COMP is internally pulled to
GND when the device is in shutdown or in undervoltage lockout (see the
Compen-
sation Components
section).
2
COMP
COMP
3
FB
FB
Feedback Input. Connect to the output if a preset voltage is used, or to a resistor-
divider from the output to GND for an adjustable output voltage.
4
SS
SS
Soft-Start Pin and Reference Output. Bypass to GND with at least 0.01μF. Connect
0.1μF to GND for a soft-start ramp time of 6.25ms for the MAX1973, or 3.75ms for the
MAX1974. SS is internally pulled to GND when the device is shut down or in
undervoltage lockout.
Ground
Control Input 2. Controls enable/disable and voltage margining (see Table 1).
Power-OK Output. Open-drain output goes low when output is below 90% of nominal
output. POK is also low when the device is shut down or in undervoltage lockout.
Power Ground
Inductor Connection. Connect an inductor from LX to the output.
Input Supply Voltage. Input voltage range is 2.6V to 5.5V. Connect a 4.7μF capacitor
from IN to PGND.
Control Input 1. Controls Enable/Disable and voltage margining (see Table 1).
5
GND
CTL2
GND
—
6
—
POK
7
8
PGND
LX
PGND
LX
9
IN
IN
CTL1
—
10
—
ON
Enable Input. Connect to IN or drive high for normal operation. Drive low to put device
in shutdown.
MAX1974 WITH 100k
PULLUP RESISTOR
FROM POK TO IN, I
LOAD
= 100mA
MAX1974
POK AND INPUT VOLTAGE
V
POK
2V/div
0
20ms/div
V
IN
1V/div
V
OUT
2V/div
0
0
V
IN
= 5V, VOUT = 2.5V, I
OUT
= 800mA, -4% TO +4% TO -4%
MAX1973
VOLTAGE MARGIN STEP CHANGE RESPONSE
V
OUT
I
IN
1V/div
0
500mA/div
1ms/div
V
CTL1
V
CTL2
0
10V/div
0
10V/div
0
Typical Operating Characteristics (continued)
(Circuits of Figure 2, 3, and 4; T
A
= +25
°
C, unless otherwise noted.)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1974EUB | Smallest 1A, 1.4MHz Step-Down Regulators |
| MAX1976ETT-T | Low-Input-Voltage, 300mA LDO Regulators with RESET in SOT and TDFN |
| MAX1976EZT-T | Low-Input-Voltage, 300mA LDO Regulators with RESET in SOT and TDFN |
| MAX1978 | Integrated Temperature Controllers for Peltier Modules |
| MAX1978-MAX1979 | Integrated Temperature Controllers for Peltier Modules |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1973EUB+ | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A 1.4MHz Step-Down Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MAX1973EUB+T | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A 1.4MHz Step-Down Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MAX1973EUB-T | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MAX1973EVKIT | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Evaluation Kit for the MAX1973 MAX1974 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MAX1974EUB | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。