参数资料
型号: MIC26601YJL EV
厂商: Micrel Inc
文件页数: 2/30页
文件大小: 0K
描述: BOARD EVAL FOR MIC26601YJL
标准包装: 1
系列: Hyper Speed Control™,SuperSwitcher II™
主要目的: DC/DC,步降
输出及类型: 1,非隔离
输出电压: 5V
电流 - 输出: 6A
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:
已用 IC / 零件: MIC26601
其它名称: 576-4015
Micrel, Inc.
Ordering Information
MIC26601
Part Number
MIC26601YJL
Voltage
Adjustable
Switching Frequency
600kHz
Junction Temperature
Range
–40°C to +125°C
Package
28-Pin 5mm × 6mm MLF ?
Lead
Finish
Pb-Free
Pin Configuration
28-Pin 5mm × 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
Pin Name
PVDD
NC
SW
PGND
PVIN
BST
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 MIC26601 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 28V. 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.
July 2011
2
M9999-071311-A
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