参数资料
型号: MAX1541ETL+
厂商: Maxim Integrated Products
文件页数: 14/49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: 50
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: 管件
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.)
LINEAR-REGULATOR
OUTPUT OVERLOAD
20V
LINE TRANSIENT
MAX1540A toc21
A
20A
10A
(UVP DISABLED)
MAX1540A toc22
A
10V
0
20V
B
5A
0
B
10V
3.8V
2.5V
C
3.3V
C
0
5V
2.8V
200 μ s/div
0
40 μ s/div
D
A. INPUT (V IN ), 10V/div
B. LDOIN (10V TO 20V), 10V/div
C. LDOOUT (3.3V), 500mV/div
A. LOAD (0 TO 150m Ω ), 10A/div C. 2.5V OUTPUT, 2V/div
B. INDUCTOR CURRENT, 10A/div D. PGOOD2, 5V/div
20mA LOAD
OUTPUT OVERLOAD
OVP/UVP = OPEN OR GND
INDUCTOR-SATURATION PROTECTION
20A
10A
0
5A
0
(UVP ENABLED)
MAX1540A toc23
A
B
5A
0
2.5V
(LSAT DISABLED)
MAX1540A toc24
A
B
5V
0
C
0.67V
C
2.5V
5V
0
20 μ s/div
D
E
7.5A
0
20 μ s/div
D
A. LOAD (0 TO 150m Ω ), 10A/div D. 2.5V OUTPUT, 2V/div
B. INDUCTOR CURRENT, 10A/div E. PGOOD2, 5V/div
C. DL2, 5V/div
OVP/UVP = V CC OR REF
A. I OUT2 = 0 TO 5A, 5A/div
B. 2.5V OUTPUT, 200mV/div
LSAT = GND, L = 3.3 μ H 3.5A
C. ILIM, 100mV/div
D. INDUCTOR CURRENT, 5A/div
14
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