参数资料
型号: MAX16977RATE/V+
厂商: Maxim Integrated Products
文件页数: 5/18页
文件大小: 0K
描述: IC BUCK SYNC ADJ 2A 16TQFN
标准包装: 60
类型: 降压(降压)
输出类型: 两者兼有
输出数: 1
输出电压: 5V,1 V ~ 10 V
输入电压: 3.5 V ~ 36 V
PWM 型: 电流模式
频率 - 开关: 1MHz ~ 2.2MHz
电流 - 输出: 2A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: *
封装/外壳: *
包装: *
供应商设备封装: *
MAX16977
36V, 2A, 2.2MHz Step-Down Converter
with Low Operating Current
Typical Operating Characteristics
(V SUP = V SUPSW = 14V, V EN = 14V, V OUT = 5V, V FSYNC = 0V, R FOSC = 12.1kHz, T A = +25 N C, unless otherwise noted.)
FULL-LOAD STARTUP BEHAVIOR
MAX16977 toc01
NO-LOAD STARTUP BEHAVIOR
(5V/2.2MHz)
MAX16977 toc02
5V/2.2MHz
RESISTIVE LOAD = 2.5 ?
5V/div
SUP SHORTED TO SUPSW
5V/div
V IN
V IN
0V
2V/div
0V
2V/div
V OUT
I LOAD
V PGOOD
2ms/div
0V
1A/div
0A
5V/div
0V
V OUT
V PGOOD
2ms/div
0V
10V/div
0V
120
110
100
90
80
70
60
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(5V/2.2MHz)
100
90
80
70
60
50
EFFICIENCY vs. LOAD CURRENT
(V IN = 14V)
D1: B360B-13-F FROM DIODES, INC.
L1: WURTH 744311220
3.3V
100
95
90
85
80
75
EFFICIENCY vs. LOAD CURRENT
(V IN = 14V)
8V
3.3V 5V
50
40
30
20
10
0
I SUP + I SUPSW
5.5 9.0 12.5 16.0 19.5 23.0 26.5 30.0 33.5
40
30
20
10
0
0
0.0001
5V
8V
0.001
0.01
0.1
70
65
60
55
50
f SW = 2.2MHz
L1 = 2.2μH (WURTH 744311220)
D1: D360B-13-F FROM DIODES, INC.
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
SUPPLY VOLTAGE (V)
SWITCHING FREQUENCY vs. R FOSC
LOAD CURRENT (A)
I LOAD (A)
SWITCHING FREQUENCY vs. LOAD CURRENT
(5V/2.2MHz)
3.0
2.5
2.0
1.5
1.0
3.0
2.5
2.0
1.5
1.0
V IN = 14V
0.5
V IN = 14V
I LOAD = 1.5A
0.5
0
12
15
18
21
24
0
0
0.5
1.0
1.5
2.0
Maxim Integrated
R FOSC (k I )
I LOAD (A)
5
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MAX16977SATE/V+ 功能描述:直流/直流开关转换器 36V 2A 2.2MHz Step-Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT