参数资料
型号: MAX1541ETL+T
厂商: Maxim Integrated Products
文件页数: 3/49页
文件大小: 0K
描述: IC REG CTRLR DIVIDER PWM 40-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: 2 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: 40-WFQFN 裸露焊盘
包装: 带卷 (TR)
Dual Step-Down Controllers with Saturation
Protection, Dynamic Output, and Linear Regulator
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, V CC = V DD = ON1 = ON2 = 5V, SKIP = GND, LDOIN (MAX1541) = V+, T A = 0°C to +85°C , unless otherwise noted. Typical
values are at T A = +25 ° C.)
PARAMETER
Standby Supply Current
(V DD , MAX1541 Only)
SYMBOL
CONDITIONS
ON1 = ON2 = GND, V LDOON = V+ = 28V
MIN
TYP
<1
MAX
5
UNITS
μA
Standby Supply Current (V+)
Standby Supply Current
(LDOIN, MAX1541 Only)
MAX1540A: ON1 = ON2 = GND,
LDOON = V+ = 28V, V CC = 0 or 5V
MAX1541: ON1 = ON2 = GND,
LDOON = V+ = 28V, V CC = V DD = 0 or 5V
ON1 = ON2 = GND, V LDOON = V+ = 28V
<1
105
5
100
μA
μA
Shutdown Supply Current (V CC )
Shutdown Supply Current
(V DD , MAX1541 Only)
Shutdown Supply Current (V+)
Shutdown Supply Current
(LDOIN, MAX1541 Only)
ON1 = ON2 = LDOON = GND
ON1 = ON2 = LDOON = GND
MAX1540A: ON1 = ON2 = LDOON = GND,
V+ = 28V, V CC = 0 or 5V
MAX1541: ON1 = ON2 = LDOON = GND,
V+ = 28V, V CC = V DD = 0 or 5V
LDOON = GND
<1
<1
4
<1
4
5
5
15
5
10
μA
μA
μA
μA
PWM CONTROLLERS
Preset output,
FB1 = GND
1.782
1.80
1.818
SKIP = V CC
MAX1540A Main Output-Voltage
Accuracy (OUT1) (Note 2)
V OUT1
V FB1
V+ = 5.5V to 28V,
FB1 = V CC
Adjustable output, V+ = 5.5V to 28V,
SKIP = V CC
Preset output,
FB2 = GND
1.188
0.693
2.475
1.20
0.70
2.50
1.212
0.707
2.525
V
MAX1540A Secondary Output-
Voltage Accuracy (OUT2)
V OUT2
V+ = 5.5V to 28V,
SKIP = V CC
FB2 = V CC
1.485
1.50
1.515
V
(Note 2)
V FB2
Adjustable output, V+ = 5.5V to 28V,
SKIP = V CC
0.693
0.70
0.707
MAX1541 Main Feedback-
Voltage Accuracy (FB1)
V FB1
V+ = 4.5V to 28V,
SKIP = V CC
REFIN1 = 0.35 x REF
0.693
0.70
0.707
V
Preset output,
FB2 = GND
2.475
2.50
2.525
MAX1541 Secondary Output-
Voltage Accuracy (OUT2)
V OUT2
V+ = 4.5V to 28V,
SKIP = V CC
FB2 = V CC
1.782
1.80
1.818
V
(Note 2)
Load-Regulation Error
Line-Regulation Error
FB_ Input Bias Current
Output Adjust Range
V FB2
I FB _
Adjustable output, V+ = 4.5V to 28V,
SKIP = V CC
I LOAD = 0 to 3A, SKIP = V CC
V CC = 4.5V to 5.5V, V+ = 4.5V to 28V
0.693
-0.1
0.7
0.70
0.1
0.25
0.707
+0.1
5.5
%
%
μA
V
_______________________________________________________________________________________
3
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