参数资料
型号: MIC2155YML TR
厂商: Micrel Inc
文件页数: 4/35页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 32MLF
特色产品: MIC2155/6 Buck Control IC
标准包装: 1
PWM 型: 电压模式
输出数: 1
频率 - 最大: 550kHz
占空比: 80%
电源电压: 4.5 V ~ 14.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 32-VFQFN 裸露焊盘,32-MLF?
包装: 标准包装
产品目录页面: 1091 (CN2011-ZH PDF)
其它名称: 576-3527-6
Micrel, Inc.
Pin Configuration
BST1
HSD1
SW1
CS1
EN2
SS
HSD2
SW2
N/C
VIN2
VOUT
COMP2
MIC2155/2156
COMP1
FB1
EP
FB2
EA2+
32-Pin MLF (ML)
?
Pin Description
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Pin Name
BST1
HSD1
SW1
CS1
EN2
SS
COMP1
FB1
DIFFOUT
RMVOUT
RMGND
AGND
AVDD
N/C
SYNC
Pin Function
Boost 1 (Input): Provides voltage for high-side MOSFET driver 1. The gate drive
voltage is higher than the source voltage by V DD minus a diode drop.
High-Side Drive 1 (Output): High-current output-driver for external high-side
MOSFET.
Switch Node 1 (Output): Return for HSD1
Current Sense 1 (Input). Current-limit comparator non-inverting input. Current is
sensed across the side 1 low-side FET during the off-time. Current limit is set by
the resistor in series with the CS1 pin.
Enable 2 (Input): Channel 2 enable. Pull high to enable. Pull low to disable.
Soft Start (Input): Controls the turn-on time of the output voltage. Active at
Power-up, Enable, and Current Limit recovery.
Compensation 1 (Input): Output of the internal error amplifier for Channel 1.
Feedback 1 (Input): Negative input to the error amplifier of Channel 1.
Output of remote sense differential amplifier.
Remote V OUT : Connect to V OUT at the remote sense point. Input to precision
differential amplifier.
Remote Ground: Connect to Ground at the remote sense point. Input to
precision differential amplifier.
Analog Ground
Analog supply voltage (input). Connect to V DD through an RC filter network
No Connect
Sync (Input): Synchronizes switching to an external source. Leave floating when
not used.
November 2009
4
M9999-111209-B
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