参数资料
型号: MAX1540AETJ+T
厂商: Maxim Integrated Products
文件页数: 11/49页
文件大小: 0K
描述: IC REG CTRLR DIVIDER PWM 32-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电流模式
输出数: 2
频率 - 最大: 620kHz
占空比: 100%
电源电压: 5.5 V ~ 28 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: 32-WFQFN 裸露焊盘
包装: 带卷 (TR)
Dual Step-Down Controllers with Saturation
Protection, Dynamic Output, and Linear Regulator
Typical Operating Characteristics (continued)
(MAX1541 circuit of Figure 12, V IN = 12V, V DD = V CC = 5V, SKIP = GND, TON = REF, T A = +25°C, unless otherwise noted.)
OUT2 SWITCHING FREQUENCY
OUT1 SWITCHING FREQUENCY
1.02
1.01
1.00
0.99
1.0V OUTPUT VOLTAGE (OUT1)
vs. LOAD CURRENT
SKIP = GND
SKIP = V CC
600
500
400
300
200
vs. LOAD CURRENT
(V OUT2 = 2.5V)
600
500
400
300
200
vs. LOAD CURRENT
(V OUT1 = 1.0V)
0.98
100
0
SKIP = GND
SKIP = V CC
100
0
SKIP = GND
SKIP = V CC
0
1
2
3
4
5
0
1
2
3
4
5
0
1
2
3
4
5
450
LOAD CURRENT (A)
SWITCHING FREQUENCY
vs. INPUT VOLTAGE
6.0
LOAD CURRENT (A)
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE
20
LOAD CURRENT (A)
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
(FORCED-PWM OPERATION)
400
350
300
250
200
2.5V OUTPUT
SKIP = V CC
4A LOAD
NO LOAD
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
2.5V OUTPUT
16
12
8
4
0
I IN
SKIP = ON1 = ON2 = V CC
I BIAS
0
4
8
12
16
20
24
28
0
4
8
12
16
20
24
28
0
4
8
12
16
20
24
28
1.00
INPUT VOLTAGE (V)
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
(PULSE-SKIPPING OPERATION)
4
INPUT VOLTAGE (V)
2.0V REFERENCE LOAD REGULATION
50
INPUT VOLTAGE (V)
REFERENCE DISTRIBUTION
0.10
I BIAS
I N
SKIP = GND
3
2
1
0
-1
-2
-3
40
30
20
10
SAMPLE SIZE = 50
ON1 = ON2 = V CC
0.01
0
4
8
12
16
20
24
28
-4
-20
0
20
40
60
80
100
0
1.990
1.995
2.000
2.005
2.010
INPUT VOLTAGE (V)
REFERENCE LOAD CURRENT ( μ A)
REFERENCE VOLTAGE (V)
______________________________________________________________________________________
11
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