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参数资料
| 型号： | MIC261203YJL EV |
| 厂商： | Micrel Inc |
| 文件页数： | 2/31页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR MIC261203YJL |
| 标准包装： | 1 |
| 系列： | HyperLight Load®, SuperSwitcher IIG™ |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，隔离 |
| 输出电压： | 5V |
| 电流 - 输出： | 12A |
| 输入电压： | 5.5 ~ 28 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 600kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MIC261203 |
| 其它名称： | 576-4014 |
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Micrel, Inc.
Ordering Information
MIC261203
Part Number
MIC261203YJL
Voltage
Adjustable
Switching Frequency
600kHz
Junction Temperature
Range
–40 ° C to +125 ° C
Package
28-Pin 5mm x 6mm MLF ?
Lead Finish
Pb-Free
Pin Configuration
28-Pin 5mm x 6mm MLF ? (YJL)
Pin Description
Pin Number
1
3
4, 9, 10, 11, 12
2, 5, 6, 7, 8, 21
13,14,15,
16,17,18,19
20
22
Pin Name
PVDD
NC
SW
PGND
PVIN
BST
CS
Pin Function
5V Internal Linear Regulator (Output): PVDD supply is the power MOSFET gate drive supply voltage
and created by internal LDO from V IN . When V IN < +5.5V, PVDD should be tied to PVIN pins.
A 2.2μF ceramic capacitor from the PVDD pin-to-PGND (pin 2) must be place next to the IC.
No Connect.
Switch Node (Output): Internal connection for the high-side MOSFET source and low-side MOSFET
drain. Due to the high speed switching on this pin, the SW pin should be routed away from sensitive
nodes.
Power Ground. PGND is the ground path for the MIC26903 buck converter power stage. The
PGND pins connect to the low-side N-Channel internal MOSFET gate drive supply ground, the
sources of the MOSFETs, the negative terminals of input capacitors, and the negative terminals of
output capacitors. The loop for the power ground should be as small as possible and separate from
the Signal ground (SGND) loop.
High-Side N-internal MOSFET Drain Connection (Input): The PV IN operating voltage range is from
4.5V to 26V. Input capacitors between the PVIN pins and the power ground (PGND) are required
and keep the connection short.
Boost (Output): Bootstrapped voltage to the high-side N-channel MOSFET driver. A Schottky diode
is connected between the PVDD pin and the BST pin. A boost capacitor of 0.1 μ F is connected
between the BST pin and the SW pin. Adding a small resistor at the BST pin can slow down the
turn-on time of high-side N-Channel MOSFETs.
Current Sense (Input): The CS pin senses current by monitoring the voltage across the low-side
MOSFET during the OFF-time. The current sensing is necessary for short circuit protection and zero
current cross comparator. In order to sense the current accurately, connect the low-side MOSFET
drain to SW using a Kelvin connection. The CS pin is also the high-side MOSFET’s output driver
return.
July 2011
2
M9999-071311-A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC261203YJLTR | 制造商:Micrel 功能描述:DC DC Regulator 28V 12A 28Pin 5x6mm MLF |
| MIC261203YJL-TR | 功能描述:Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 12A 28-PowerVQFN Variant, 28-MLF? 制造商:microchip technology 系列:HyperLight Load?，SuperSwitcher IIG?? 包装:剪切带（CT） 零件状态:有效 功能:降压 输出配置:正 拓扑:降压 输出类型:可调式 输出数:1 电压 - 输入（最小值）:4.5V 电压 - 输入（最大值）:28V 电压 - 输出（最小值/固定）:0.8V 电压 - 输出（最大值）:5.5V 电流 - 输出:12A 频率 - 开关:600kHz 同步整流器:是 工作温度:-40°C ~ 125°C （TJ） 安装类型:表面贴装 封装/外壳:28-PowerVQFN 变式，28-MLF? 供应商器件封装:28-MLF?（5x6） 标准包装:1 |
| MIC261203-ZAYJL TR | 制造商:Micrel Inc 功能描述:IC REG BUCK SYNC ADJ 12A 28MLF |
| MIC2619YD6 | 制造商:Micrel 功能描述:1.2MHz PWM Boost Converter with OVP |
| MIC2619YD6 TR | 功能描述:直流/直流开关转换器 1.2MHz PWM Boost Converter with OVP in Thin SOT-23 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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