参数资料
| 型号： | SC198MLTRT |
| 厂商： | Semtech |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC PROG .6A 20MLPQ |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 可编程 |
| 输入电压： | 2.7 V ~ 5.5 V |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 600mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-MLPQ |
| 包装： | 标准包装 |
| 供应商设备封装： | 20-MLPQ（4x4） |
| 产品目录页面： | 1358 (CN2011-ZH PDF) |
| 其它名称： | SC198MLDKR |
POWER MANAGEMENT
Pin Descriptions
NOT RECOMMENDED FOR NEW DESIGN
SC198
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
T
Pin Name
VINA
LXA
GNDA
VOUTA
CTLA0
CTLA1
CTLA2
GNDR
CTLB2
CTLB1
CTLB0
VOUTB
GNDB
LXB
VINB
ENB
SYNC
VINR
NC
ENA
THERMAL PAD
Pin Function
Input power supply voltage converter A
Connection point for the inductor on converter A
Ground reference to converter A
Feedback control input for converter A
Voltage select control pin 0 for output A (see Table A — Output Voltage Options). (1)
Voltage select control pin 1 for output A (see Table A — Output Voltage Options). (1)
Voltage select control pin 2 for output A (see Table A — Output Voltage Options). (1)
Ground for reference supply
Voltage select control pin 2 for output B (see Table A — Output Voltage Options). (1)
Voltage select control pin 1 for output B (see Table A — Output Voltage Options). (1)
Voltage select control pin 0 for output B (see Table A — Output Voltage Options). (1)
Feedback control input for converter B
Ground reference for converter B
Connection point for the inductor on converter B
Input power supply voltage for converter B
Enable pin for output B
Oscillator synchronization input - connect to VIN for forced PWM mode, ground for
power-save mode or connect to an external clock for frequency synchronization.
Reference supply input
Not connected
Enable pin for output A
Thermal pad for heatsinking purposes — connect to ground plane using multiple
vias — not connected internally
Note:
(1) All CTL pins must be pulled high or low for proper operation.
? 2007 Semtech Corp.
5
www.semtech.com
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