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參數(shù)資料
| 型號(hào)： | MAX730 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 5V, Step-Down, Current-Mode PWM DC-DC Converters |
| 中文描述： | 5V的，降壓，電流模式PWM DC - DC轉(zhuǎn)換 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 229K |
| 代理商： | MAX730 |
M
5V, S tep-Down,
Current-Mode PWM DC-DC Converters
_______________________________________________________________________________________
7
NAME
FUNCTION
1
SHDN
Shutdown—active low. Ground to power-down chip, tie to V+ for normal operation.
Output voltage falls to 0V when
SHDN
is low.
2
REF
3
SS
Soft-Start. Capacitor between SS and GND provides soft-start and short-circuit protection.
510k
resistor from SS to
SHDN
provides current boost.
2
3
4
CC
Compensation Capacitor Input externally compensates the outer feedback loop.
Connect to OUT with a 330pF capacitor.
5
6
7
OUT
GND
LX
Output Voltage Sense Input provides regulation feedback sensing. Connect to +5V output.
Ground pins are internally connected. Connect both pins to ground.
Drain of internal P-channel power MOSFET.
7
8
9
8
V+
Supply-Voltage Input. Bypass to GND with 1μF ceramic and large-value electrolytic capaci-
tors in parallel. The 1μF capacitor must be as close to V+ and GND pins as possible.
N.C.
No Connect—no internal connections to these pins.
10, 11
12, 13, 14
1, 15, 16
4, 5, 6
______________________________________________________________Pin Desc ription
MAX730A
LOAD-TRANSIENT RESPONSE
50ms/div
A: VOUT, 50mV/div, DC-COUPLED
B: IOUT, 200mA/div, 20mA TO300mA
V+ = 9V
MAX738A/MAX744A
LOAD-TRANSIENT RESPONSE
50ms/div
A: VOUT, 50mV/div, DC-COUPLED
B: IOUT, 500mA/div, 50mA TO750mA
V+ = 12V
300mA
20mA
A
B
____________________________Typic al Operating Charac teristic s (c ontinued)
(Circuit of Figure 3, T
A
= +25°C, unless otherwise noted.)
16-PIN
WIDE SO
8-PIN
DIP/SO
Reference-Voltage Output (+1.23V) supplies up to 100μA for extended loads.
Bypass to GND with a capacitor that does not exceed 0.047μF.
750mA
50mA
A
B
PIN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX738A | 5V, Step-Down, Current-Mode PWM DC-DC Converters |
| MAX744A | 5V, Step-Down, Current-Mode PWM DC-DC Converters |
| MAX738AEWE | LJT 37C 37#22D SKT PLUG |
| MAX744AEWE | Circular Connector; No. of Contacts:26; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:17; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:17-26 RoHS Compliant: No |
| MAX738ACWE | Replaced by SN54197 : 50/30/100-Mhz Presettable Decade OR Binary Counters/Latches 14-CFP -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7300 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander |
| MAX7300_11 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander |
| MAX7300AAI | 功能描述:接口-I/O擴(kuò)展器 2.5-5.5V 20/28 Port I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7300AAI+ | 功能描述:接口-I/O擴(kuò)展器 2.5-5.5V 20/28 Port I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| MAX7300AAI+T | 功能描述:接口-I/O擴(kuò)展器 2.5-5.5V 20/28 Port I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
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