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| 型号： | MAX1605EUT#TG16 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 0.5A SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 30 V |
| 输入电压： | 2.4 V ~ 5.5 V |
| 频率 - 开关： | 500kHz |
| 电流 - 输出： | 500mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 包装： | 标准包装 |
| 供应商设备封装： | SOT-6 |
| 其它名称： | MAX1605EUT#TG16DKR |
30V Internal Switch LCD Bias Supply
V CC
(2.4V TO 5.5V)
V CC
MAX1605
V CC
(2.4V TO 5.5V)
V CC
MAX1605
V CC
(2.4V TO 5.5V)
V CC
MAX1605
LIM
GND
IPEAK = 500mA
NO CONNECTION
LIM
GND
IPEAK = 250mA
LIM
GND
IPEAK = 125mA
Figure 2. Setting the Peak Inductor Current Limit
Setting the Output Voltage (FB)
Adjust the output voltage by connecting a voltage-
divider from the output (V OUT ) to FB (Figure 3). Select
R2 between 10k ? to 200k ? . Calculate R1 with the fol-
lowing equation:
R1 = R2 [(V OUT / V FB ) – 1]
where V FB = 1.25V and V OUT may range from V IN to
30V. The input bias current of FB has a maximum value
of 100nA, which allows large-value resistors to be used.
For less than 1% error, the current through R2 should
be greater than 100 times the feedback input bias cur-
rent (I FB ).
Current Limit Select Pin (LIM)
The MAX1605 allows a selectable inductor current limit
of 125mA, 250mA, or 500mA (Figure 2). This allows
Separate/Same Power for L1 and V CC
Separate voltage sources can supply the inductor (V IN )
and the IC (V CC ). This allows operation from low-voltage
batteries as well as high-voltage sources (0.8V to 30V)
because chip bias is provided by a logic supply (2.4V
to 5.5V), while the output power is sourced directly from
the battery to L1. Conversely, V IN and V CC can also be
supplied from one supply if it remains within V CC ’s
operating limits (+2.4V to +5.5V).
L1
flexibility in designing for higher current applications or
for smaller, compact designs. The lower current limit
allows the use of a physically smaller inductor in space-
sensitive, low-power applications. Connect LIM to V CC
for 500mA, leave floating for 250mA, or connect to
V IN = 0.8V TO V OUT
C IN
10 μ F
10 μ H
GND for 125mA.
Shutdown ( SHDN )
Pull SHDN low to enter shutdown. During shutdown, the
supply current drops to 0.1μA and LX enters a high-
V CC = 2.4V TO 5.5V
C1
0.1 μ F
V CC
MAX1605
LX
D1
R1
2.2M ?
V OUT = 18V
C FF
10pF
C OUT
1 μ F
impedance state. However, the output remains con-
nected to the input through the inductor and output
rectifier, holding the output voltage to one diode drop
ON
LIM
FB
R2
165k ?
below V IN when the MAX1605 is shut down. The capac-
OFF
SHDN
GND
itance and load at OUT determine the rate at which
V OUT decays. SHDN can be pulled as high as 6V,
regardless of the input and output voltages.
Figure 3. Typical Application Circuit
_______________________________________________________________________________________
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| MAX1605EVKIT | 功能描述:直流/直流开关转换器 Evaluation Kit for the MAX1605 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 |
| MAX16060ATE+ | 功能描述:监控电路 Quad/Hex/Octal Volt uP Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16060ATE+T | 功能描述:监控电路 Quad/Hex/Octal Volt uP Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16060BTE+ | 功能描述:监控电路 Quad/Hex/Octal Volt uP Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX16060BTE+T | 功能描述:监控电路 Quad/Hex/Octal Volt uP Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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