参数资料
| 型号： | MAX606ESA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | IC DC-DC CONVERT 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 应用： | 转换器，闪存 PCMCIA 卡 |
| 输入电压： | 3 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 5V，3 V ~ 12.5 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
Low-Profile, 5V/12V or Adjustable, Step-Up
DC-DC Converters for Flash Memory/PCMCIA Cards
IN
TIMING CIRCUIT
t ON
t OFF
LX
EN
ON
INH
CONTROL
LOGIC
DRIVER
INTERNAL
POWER
1 ? SWITCH
UNDER-
OFF
CURRENT-LIMIT
COMPARATOR
R LIM
PGND
VOLTAGE
LOCKOUT
V REF
SS
OUT
MAX606
REF
MAX607
SHDN
ERROR
COMPARATOR
INT/EXT
FB
DUAL
FB
MODE
5V/12V
Figure 3. Functional Diagram
The on/off times are determined by the input and output
voltages:
t ON = K / V IN
t OFF = 0.5 · K / (V OUT + V DIODE - V IN )
K is typically 3μs-V for the MAX606 and 6μs-V for the
MAX607. This factor is chosen to set the optimum
switching frequency and the one-cycle current limit,
which determines the no-load output ripple at low out-
put-to-input voltage differentials. The factor of 0.5 in the
off-time equation is the typical switch off-time ratio. This
ratio guarantees high efficiency under a heavy load by
allowing the inductor to operate in continuous-conduc-
tion mode. For example, a switch off-time ratio of 1
would cause the device to operate on the edge of dis-
continuous-conduction mode.
To determine the actual switch off-time ratio for a par-
ticular device, measure t ON , t OFF , V IN , and V OUT , and
then solve for the ratio by substituting these values into
the off-time equation.
Unlike PWM converters, the MAX606/MAX607 generate
variable-frequency switching noise. However, the
amplitude of this noise does not exceed the product of
the switch current limit and the output capacitor equiva-
lent series resistance (ESR). Traditional clocked-PFM or
pulse-skipping converters cannot make this claim.
Output Voltage Selection
The MAX606/MAX607 output voltage is pin-program-
mable to 5V and 12V, and also adjustable to voltages
between V IN and 12.5V. Connect FB to IN for a 5V out-
put, to GND for a 12V output, or to a resistive divider
between the output and GND for an adjustable output.
Always connect OUT to the output.
_______________________________________________________________________________________
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX606ESA+ | 功能描述:直流/直流开关转换器 5V/12V or Adjustable Step-Up DC/DC Cnvrtr 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 |
| MAX606ESA+T | 功能描述:直流/直流开关转换器 5V/12V or Adjustable Step-Up DC/DC Cnvrtr 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 |
| MAX606ESA-T | 功能描述:直流/直流开关转换器 5V/12V or Adjustable Step-Up DC/DC Cnvrtr 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 |
| MAX606EUA | 功能描述:直流/直流开关转换器 5V/12V or Adjustable Step-Up DC/DC Cnvrtr 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 |
| MAX606EUA+ | 功能描述:直流/直流开关转换器 5V/12V or Adjustable Step-Up DC/DC Cnvrtr 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 |
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