参数资料
型号: MAX5099ATJ+
厂商: Maxim Integrated Products
文件页数: 6/27页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ DL 32TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
类型: 降压(降压)
输出类型: 可调式
输出数: 2
输出电压: 0.8 V ~ 17.1 V
输入电压: 4.5 V ~ 19 V
PWM 型: 电压模式
频率 - 开关: 200kHz ~ 2.2MHz
电流 - 输出: 1A,2A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
包装: 管件
供应商设备封装: 32-TQFN-EP(5x5)
Dual, 2.2MHz, Automotive Synchronous Buck
Converter with 80V Load-Dump Protection
Typical Operating Characteristics
(V+ = V IN_HIGH = 14V, unless otherwise noted. V+ = V IN_HIGH means that N1 is shorted externally.)
100
90
80
70
OUTPUT1 EFFICIENCY
vs. LOAD CURRENT
100
90
80
70
OUTPUT2 EFFICIENCY
vs. LOAD CURRENT
100
90
80
70
OUTPUT1 EFFICIENCY
vs. LOAD CURRENT
60
V IN = 16V
60
60
V IN = 14V
V IN = 16V
50
40
30
20
10
0
V IN = 8V
V IN = 14V
V OUT = 5V
f SW = 1.85MHz
50
40
30
20
10
0
V IN = 5.5V
V IN = 4.5V
V IN = 8V
V IN = 16V
V IN = 14V
V OUT = 3.3V
f SW = 1.85MHz
50
40
30
20
10
0
V IN = 8V
V OUT = 5V
f SW = 300kHz
L1 = 18 μ H
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
100
LOAD CURRENT (A)
OUTPUT2 EFFICIENCY
vs. LOAD CURRENT
5.00
LOAD CURRENT (A)
OUTPUT1 VOLTAGE
vs. LOAD CURRENT
3.30
LOAD CURRENT (A)
OUTPUT2 VOLTAGE
vs. LOAD CURRENT
90
80
70
60
50
V IN = 14V
V IN = 16V
4.98
4.96
V IN = 8V
V IN = 14 V
V IN = 16 V
3.29
3.28
3.27
V IN = 5.5V
V IN = 4.5V
V IN = 8V
V IN = 14V
V IN = 16V
40
30
V IN = 8V
V IN = 5.5V
4.94
3.26
3.25
20
10
0
V IN = 4.5V
V OUT = 3.3V
f SW = 300kHz
L2 = 27 μ H
4.92
4.90
V OUT = 5V
f SW = 1.85MHz
3.24
3.23
V OUT = 3.3V
f SW = 1.85MHz
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
LOAD CURRENT (A)
V L OUTPUT VOLTAGE
vs. CONVERTER SWITCHING FREQUENCY
LOAD CURRENT (A)
EACH CONVERTER SWITCHING
FREQUENCY vs. R OSC
LOAD CURRENT (A)
EACH CONVERTER SWITCHING
FREQUENCY vs. TEMPERATURE
5.4
5.2
BOTH CONVERTERS SWITCHING
FSEL_1 = V L
10
FSEL_1 = V L ,
FSEL_1 = GND,
10
FSEL_1 = V L
1.85MHz
2.2MHz
5.0
4.8
V IN = 5.5V
V IN = 8V
V IN = 19V
CONVERTER 1, CONVERTER 2
4.6
4.4
4.2
4.0
V IN = 4.5V
V IN = 5V
1
0.1
CONVERTER 1
1
0.1
1.25MHz
0.6MHz
0.3MHz
400
700
1000
1300
1600
1900
2200
0
20
40
60
80
-40
-5
30
65
100
135
CONVERTER SWITCHING FREQUENCY (kHz)
R OSC (k Ω )
TEMPERATURE ( ° C)
6
_______________________________________________________________________________________
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