- 您现在的位置：买卖IC网 > PDF目录17221 > MAX1724EVKIT (Maxim Integrated Products)EVAL KIT STEP-UP MAX1722-MAX1724 PDF资料下载
参数资料
| 型号： | MAX1724EVKIT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT STEP-UP MAX1722-MAX1724 |
| 产品培训模块： | Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步升 |
| 输出及类型： | 2，非隔离 |
| 输出电压： | 3.3V，3.6V |
| 电流 - 输出： | 100mA |
| 输入电压： | 0.91 ~ 3.3 V |
| 稳压器拓扑结构： | 升压 |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX1722，MAX1723，MAX1724 |
MAX1722/MAX1723/MAX1724
1.5μA I Q , Step-Up DC-DC Converters in TSOT
For maximum output current, choose the inductor value
so that the controller reaches the current-limit before
INPUT
0.8V TO V OUT
10 μ H
the maximum on-time is triggered:
10 μ F
BATT
LX
OUT
OUTPUT
2V TO 5.5V
L <
V BATT t ON ( MAX )
I LIM
where the maximum on-time is typically 5μs, and the
MAX1722
R2
10 μ F
current limit (I LIM ) is typically 500mA (see Electrical
Characteristics table).
FB
For larger inductor values, determine the peak inductor
GND
Figure 7. Adjustable Output Circuit
R1
current (I PEAK) by:
I PEAK =
V BATT t ON ( MAX )
L
Inductor Selection
The control scheme of the MAX1722/MAX1723/
INPUT
0.8V TO V OUT
10 μ H
MAX1724 permits flexibility in choosing an inductor. A
10μH inductor value performs well in most applications.
Smaller inductance values typically offer smaller physi-
cal size for a given series resistance, allowing the
smallest overall circuit dimensions. Circuits using larger
inductance values may start up at lower battery volt-
C1
10 μ F
BATT
MAX1724
LX
OUT
OUTPUT
V OUT (NOM)
C2
10 μ F
ages, provide higher efficiency, and exhibit less ripple,
but they may reduce the maximum output current. This
occurs when the inductance is sufficiently large to pre-
vent the maximum current limit (I LIM ) from being
ON
OFF
SHDN
GND
reached before the maximum on-time (t ON(MAX) )
expires.
Table 1. Suggested Inductors and
Suppliers
Figure 8. MAX1724 Standard Application Circuit
The inductor’s incremental saturation current rating should
MANUFACTURER
Coilcraft
Murata
Sumida
INDUCTOR
DO1608 Series
DO1606 Series
LQH4C Series
CDRH4D18 Series
CR32 Series
CMD4D06 Series
PHONE
WEBSITE
847-639-2361
www.coilcraft.com
770-436-1300
www.murata.com
847-545-6700
www.sumida.com
be greater than the peak switching current. However, it is
generally acceptable to bias the inductor into saturation
by as much as 20%, although this will slightly reduce effi-
ciency. Table 1 lists suggested inductors and suppliers.
Maximum Output Current
The maximum output current depends on the peak induc-
tor current, the input voltage, the output voltage, and the
overall efficiency ( η ):
I PEAK ? BATT ? η
Sumitomo/
Daidoo Electronics
Toko
CXLD140 Series
3DF Type
D412F Type
+81 (06) 6355-5733
www.daidoo.co.jp
847-297-0070
www.toko.com
I OUT ( MAX ) =
1
2
? V ?
? V OUT ?
Maxim Integrated
9
相关PDF资料 |
PDF描述 |
|---|---|
| GMC07DREN-S13 | CONN EDGECARD 14POS .100 EXTEND |
| IR21094SPBF | IC DRIVER HALF BRIDGE 14SOIC |
| GSC07DREH-S13 | CONN EDGECARD 14POS .100 EXTEND |
| GMC07DREH-S13 | CONN EDGECARD 14POS .100 EXTEND |
| 13R332C | INDUCTOR RADIAL 3.3UH 4.8A |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1724EZK27 | 制造商:Maxim Integrated Products 功能描述:1.5UA IQ STEP-UP DC-DC CONVERTERS - Cut Tape Product |
| MAX1724EZK27+ | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP UP 5PIN TSOT-23 - Rail/Tube |
| MAX1724EZK27+T | 功能描述:直流/直流开关转换器 1.5uA IQ Step-Up 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 |
| MAX1724EZK27-T | 功能描述:直流/直流开关转换器 1.5uA IQ Step-Up 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 |
| MAX1724EZK30 | 制造商:Maxim Integrated Products 功能描述:1.5UA IQ STEP-UP DC-DC CONVERTERS - Rail/Tube |
发布紧急采购，3分钟左右您将得到回复。