參數(shù)資料
型號(hào): ADP3180
廠商: Analog Devices, Inc.
英文描述: 6-Bit Programmable 2-, 3-, 4-Phase Synchronous Buck Controller
中文描述: 6位可編程2 - ,3 - ,4相同步降壓控制器
文件頁數(shù): 6/20頁
文件大?。?/td> 529K
代理商: ADP3180
–6–
ADP3180–Typical Performance Characteristics
4
3
2
1
0
M
R
T
VALUE – k
SEE EQUATION 1 FOR FREQUENCIES NOT ON THIS GRAPH
0
50
100
150
200
250
300
TPC 1. Master Clock Frequency vs. R
T
TEST CIRCUITS
CSSUM
18
CSCOMP
17
28
VCC
CSREF
16
GND
19
39k
100nF
1k
1.0V
ADP3180
12V
V
OS
=CSC40
Test Circuit 1. Current Sense Amplifier V
OS
CSSUM
18CSCOMP
17
28 VCC
CSREF
16
COMP
8 FB
9
GND
19
200k
10k
200k
1.0V
ADP3180
V
12V
100nF
VFB = FBV = 80mV – FBV = 0mV
Test Circuit 2. Positioning Voltage
0
0.5
1.0
MASTER CLOCK FREQUENCY – MHz
1.5
2.0
2.5
3.0
3.5
4.0
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
S
T
= 25 C
4-PHASE OPERATION
TPC 2. Supply Current vs. Master Clock Frequency
+
250k
12V
1 F
100nF
100nF
VCC
PWM1
PWM2
PWM3
PWM4
SW1
SW2
SW3
SW4
GND
CSCOMP
CSSUM
CSREF
ILIMIT
28
27
26
21
24
23
22
17
18
19
15
16
20
25
20k
ADP3180
VID4
VID3
VID2
VID1
VID0
VID5
FBRTN
FB
COMP
PWRGD
EN
DELAY
RT
RAMPADJ
1
2
3
4
8
10
12
14
5
6
7
9
11
13
1.25V
6-BIT CODE
250k
1k
4.7nF
Test Circuit 3. Closed-Loop Output Voltage Accuracy
REV. 0
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