参数资料
型号: SC493ULTRT
厂商: Semtech
文件页数: 10/28页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM MLPQ-20
标准包装: 1
系列: EcoSpeed®, SmartDrive™
PWM 型: 控制器
输出数: 1
频率 - 最大: 1MHz
电源电压: 3 V ~ 5.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 20-MLPQ
包装: 标准包装
其它名称: SC493ULTRTDKR
SC493
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin Name
VOUT
FB
AVDD
SDA
SCL
EN
VIN
DH
BST
LX
NC
DL
PGND
PVDD
PGOOD
ILIM
A2
A1
A0
AGND
PAD
Pin Function
Output voltage
Feedback pin
Chip supply voltage
I 2 C data input/output
I 2 C clock input
Enable pin
Power stage input voltage
High side gate driver pin
Bootstrap pin — a capacitor is connected from BST to LX to develop the bias voltage for the high side gate
drive.
Switching (phase) node — connect to the switching side of the power inductor.
No Connect
Low side gate driver pin
Power ground
Supply voltage for driver
Power good
Current limit sense point — to program the current limit connect a resistor from ILIM to LX
Input for bit 2 of the I 2 C device address
Input for bit 1 of the I 2 C device address
Input for bit 0 of the I 2 C device address
Analog ground
Thermal pad for heat sinking purposes — connect to ground plane using multiple vias — not connected
internally.
10
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