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参数资料
| 型号： | DC1623A |
| 厂商： | Linear Technology |
| 文件页数： | 8/26页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LTM8003 |
| 软件下载： | LTM8033 Spice Model |
| 设计资源： | DC1623A Design Files |
| 标准包装： | 1 |
| 系列： | µModule® |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 3.3V |
| 电流 - 输出： | 3A |
| 输入电压： | 5.5 ~ 36 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 425kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | LTM8033 |
LTM8033
PIN FUNCTIONS
V OUT (Bank 1): Power Output Pins. Apply the output filter
capacitor and the output load between these pins and
GND pins.
GND (A8, Bank 2): Tie these GND pins to a local ground
plane below the LTM8033 and the circuit components.
Return the feedback divider (R ADJ ) to this net.
FIN (Bank 3): Filtered Input. This is the node after the input
EMI filter. Apply the capacitor recommended by Table 1.
Additional capacitance may be applied if there is a need
to modify the behavior of the integrated EMI filter; other-
wise, leave these pins unconnected. See the Applications
Information section for more details.
V IN (Bank 4): The V IN pin supplies current to the LTM8033’s
internal regulator and to the internal power switch. This
pin must be locally bypassed with an external, low ESR
capacitor; see Table 1 for recommended values. Ensure
that V IN + BIAS is less than 56V.
SHARE (Pin A6): Tie this to the SHARE pin of another
LTM8033 when paralleling the outputs. Otherwise, do
not connect.
ADJ (Pin A7): The LTM8033 regulates its ADJ pin to 0.79V.
Connect the adjust resistor from this pin to ground. The
value of R ADJ is given by the equation R ADJ = 394.21/(V OUT
– 0.79), where R ADJ is in k?.
RT (Pin B6): The RT pin is used to program the switching
frequency of the LTM8033 by connecting a resistor from
this pin to ground. The Applications Information section of
the data sheet includes a table to determine the resistance
value based on the desired switching frequency. Minimize
capacitance at this pin.
SYNC (Pin B8): This is the external clock synchronization
input. Ground this pin for low ripple Burst Mode ? operation
at low output loads. Tie to a stable voltage source greater
than 0.7V to disable Burst Mode operation. Do not leave
this pin floating. Tie to a clock source for synchronization.
Clock edges should have rise and fall times faster than
1μs. See the Synchronization section in the Applications
Information section.
PGOOD (Pin B7): The PGOOD pin is the open-collector
output of an internal comparator. PGOOD remains low
until the ADJ pin is greater than 90% of the final regulation
voltage. PGOOD output is valid when V IN is above 3.6V
and RUN/SS is high. If this function is not used, leave
this pin floating.
AUX (Pin G3): Low Current Voltage Source for BIAS.
In many designs, the BIAS pin is simply connected to
V OUT . The AUX pin is internally connected to V OUT and
is placed adjacent to the BIAS pin to ease printed circuit
board routing. Although this pin is internally connected
to V OUT , it is not intended to deliver a high current, so do
not connect this pin to the load. If this pin is not tied to
BIAS, leave it floating.
BIAS (Pin G4): The BIAS pin connects to the internal power
bus. Connect to a power source greater than 2.8V and less
than 25V. If the output is greater than 2.8V, connect this
pin there. If the output voltage is less, connect this to a
voltage source between 2.8V and 25V but ensure that V IN
+ BIAS is less than 56V.
RUN/SS (Pin G8): Pull the RUN/SS pin below 0.2V to
shut down the LTM8033. Tie to 2.5V or more for normal
operation. If the shutdown feature is not used, tie this pin
to the V IN pin. RUN/SS also provides a soft-start function;
see the Applications Information section.
8033fa
8
For more information www.linear.com/LTM8033
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| DC1625A-A | 功能描述:BOARD DEMO FOR LTC4227-1 RoHS:是 类别:未定义的类别 >> 其它 系列:* 标准包装:1 系列:* 其它名称:MS305720A |
| DC1625A-B | 功能描述:BOARD DEMO FOR LTC4227-2 RoHS:是 类别:未定义的类别 >> 其它 系列:* 标准包装:1 系列:* 其它名称:MS305720A |
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| DC1627A-B | 制造商:Linear Technology 功能描述:EVAL BOARD FOR LTC4226-2 制造商:Linear Technology 功能描述:DEMO BOARD, LTC4226 HOT SWAP CONTROLLER, Silicon Manufacturer:Linear Technology, Silicon Core Number:LTC4226CUD-2, Kit Application Type:Power Management, Application Sub Type:Hot Swap Controller, Kit Contents:Demo Board LTC4226CUD-2 , RoHS Compliant: NA |
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