- 您现在的位置：买卖IC网 > PDF目录20789 > LTM8027IV#PBF (Linear Technology)IC BUCK SYNC ADJ 4A 113LGA PDF资料下载
参数资料
| 型号： | LTM8027IV#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/22页 |
| 文件大小： | 0K |
| 描述： | IC BUCK SYNC ADJ 4A 113LGA |
| 产品培训模块： | LTM8027 - 60V, 4A DC/DC µModule Regulator Power Module vs. Discrete DC to DC |
| 软件下载： | LTM8027 Spice Model |
| 产品目录绘图： | LTM Series_15x15x4.3 |
| 设计资源： | DC1307A Design Files LTM8027IV#PBF Footprint.bxl |
| 特色产品： | μModule Products |
| 标准包装： | 119 |
| 系列： | µModule® |
| 类型： | 非隔离（POL） |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 4.5V |
| 电压 - 输入（最大）： | 60V |
| Voltage - Output 1： | 2.5 ~ 24 V |
| 电流 - 输出（最大）： | 4A |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 113-LGA |
| 尺寸/尺寸： | 0.59" L x 0.59" W x 0.17" H（15.0mm x 15.0mm x 4.3mm） |
| 包装： | 托盘 |
| 工作温度： | -40°C ~ 125°C |
| 效率： | 95% |
| 产品目录页面： | 2711 (CN2011-ZH PDF) |
| 配用： | DC1307A-ND - BOARD EVAL LTM8027 |
LTM8027
PIN FUNCTIONS
V IN (Bank 3): The V IN pins supply current to the LTM8027’s
internal regulator and to the internal power switch. These
pins must be locally bypassed with an external, low ESR
capacitor (see Table 2).
V OUT (Bank 1): Power Output Pins. Apply the output filter
capacitor and the output load between these and the GND
pins.
AUX (Pin A7): Low Current Voltage Source for BIAS1
and BIAS2. In many designs, the BIAS pin is connected
to V OUT by way of the AUX pin. The AUX pin is internally
connected to V OUT and is placed near the BIAS pins to ease
printed circuit board routing. Although this pin is internally
connected to V OUT , do NOT connect this pin to the load. If
this pin is not tied to BIAS1 and BIAS2, leave it floating.
BIAS1 (Pin A6): The BIAS1 pin connects to the internal
power bus. Connect to a power source greater than 8.5V.
If the output is greater than 8.5V, connect it to this pin. If
the output voltage is less, connect this to a voltage source
between 8.5V and 15V.
BIAS2 (Pin A3): Internal Biasing Power. Connect to AUX
(if 24V or less) or a voltage source above 3V. Do not leave
BIAS2 floating.
RUN (Pin A4): Tie the RUN pin to ground to shut down the
LTM8027. Tie to 1.4V or more for normal operation. The
RUN pin is internally clamped to 5V, so when it is pulled
up, be sure to use a pull-up resistor that limits the cur-
rent in to the RUN pin to less than 1mA. If the shutdown
feature is not used, tie this pin to the V IN pin through a
pull-up resistor.
GND (Bank 2): Tie these GND pins to a local ground plane
below the LTM8027 and the circuit components.
RT (Pin B1): The RT pin is used to program the switching
frequency of the LTM8027 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 C1): The SYNC pin provides an external clock
input for synchronization of the internal oscillator. The R T
resistor should be set such that the internal oscillator fre-
quency is 10% to 25% below the external clock frequency.
This external clock frequency must be between 100kHz and
500kHz. If unused, the SYNC pin is connected to GND. For
more information see Oscillator Sync in the Application
Information section of this data sheet.
ADJ (Pin A2): The LTM8027 regulates its ADJ pin to 1.23V.
Connect the adjust resistor from this pin to ground. The
value of R ADJ is given by the equation:
R ADJ = 613.77/(V OUT – 1.23)
where R ADJ is in kΩ.
SS (Pin A5): The soft-start pin is used to program the
supply soft-start function. Use the following formula to
calculate C SS for a given output voltage slew rate:
C SS = 2μA(t SS /1.231V)
The pin should be left unconnected when not using the
soft-start function.
8027fb
9
相关PDF资料 |
PDF描述 |
|---|---|
| EBM06DCTD-S288 | CONN EDGECARD 12POS .156 EXTEND |
| EBM06DCSN-S288 | CONN EDGECARD 12POS .156 EXTEND |
| EBM06DCSH-S288 | CONN EDGECARD 12POS .156 EXTEND |
| EBM06DCSD-S288 | CONN EDGECARD 12POS .156 EXTEND |
| GEM08DSEN-S13 | CONN EDGECARD 16POS .156 EXTEND |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTM8027MPV | 制造商:LINER 制造商全称:Linear Technology 功能描述:60V, 4A DC/DC Module Regulator |
| LTM8027MPV#PBF | 功能描述:IC BUCK SYNC ADJ 4A 113LGA RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:µModule® 设计资源:Maxi/Mini/Micro Design Guide, Appl Manual 标准包装:1 系列:微型 类型:隔离 输出数:1 电压 - 输入（最小）:18V 电压 - 输入（最大）:36V Voltage - Output 1:48V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:* 电源（瓦） - 制造商系列:100W 电压 - 隔离:* 特点:* 安装类型:通孔 封装/外壳:模块 尺寸/尺寸:2.28" L x 1.45" W x 0.62" H（57.9mm x 36.8mm x 15.7mm） 包装:散装 工作温度:-20°C ~ 100°C 效率:* 电源（瓦特）- 最大:* 其它名称:1102-1290V24C48C100BL-ND |
| LTM8027MPV#PBF | 制造商:Linear Technology 功能描述:DC/DC Converter IC |
| LTM8027MPVPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:60V, 4A DC/DC Module Regulator |
| LTM8027V | 制造商:LINER 制造商全称:Linear Technology 功能描述:Complete Switch Mode Power Supply |
发布紧急采购，3分钟左右您将得到回复。