參數(shù)資料
型號(hào): LM3370TLX-3806
廠商: National Semiconductor Corporation
元件分類(lèi): DC/DC變換器
英文描述: Dual Synchronous Step-Down DC-DC Converter with Dynamic Voltage Scaling Function
中文描述: 雙同步降壓型DC - DC轉(zhuǎn)換器的動(dòng)態(tài)電壓調(diào)節(jié)功能
文件頁(yè)數(shù): 3/26頁(yè)
文件大小: 5302K
代理商: LM3370TLX-3806
Package Marking Information
16-Lead LLP Package
20167343
FIGURE 3. Top Marking
20167342
FIGURE 4. Top View
Pin Descriptions (LLP)
Pin #
1
Name
V
IN2
SW2
PGND2
V
DD
SGND
PGND1
SW1
V
IN1
FB1
SDA
Description
Power supply voltage input to PFET and NFET switches for Buck 2
2
3
4
Buck 2 Switch Pin
Buck 2 Power Ground
Signal supply voltage input, V
DD
must be equal or greater of the two inputs (V
IN1
& V
IN2
)
Signal GND
Buck 1 Power Ground
Buck 1 Switch Pin
Power supply voltage input to PFET and NFET switches for Buck 1
5
6
7
8
9
Analog Feedback Input for Buck 1
I
2
C Compatible Data, a 2 k
pull up resistor is required
I
2
C Compatible Clock, a 2 k
pull up resistor is required
Power ON Reset for Buck 1, Open drain output Low when Buck 1 output is 92% of target
output. A 100 k
pull up resistor is required
Power ON Reset for Buck 2, Open drain output Low when Buck 2 output is 92% of target
output. A 100 k
pull up resistor is required
Buck 1 Enable
Buck 2 Enable
Analog feedback for Buck 2
10
11
SCL
12
nPOR1
13
nPOR2
14
15
16
EN1
EN2
FB2
3
www.national.com
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