参数资料
型号: MAX8561ETA+T
厂商: Maxim Integrated Products
文件页数: 4/12页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 0.5A 8TDFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.6 V ~ 2.5 V
输入电压: 2.7 V ~ 5.5 V
频率 - 开关: 4MHz
电流 - 输出: 500mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-WDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 8-TDFN-EP(3x3)
4MHz, 500mA Synchronous Step-Down
DC-DC Converters in Thin SOT and TDFN
Typical Operating Characteristics (continued)
(V IN = 3.6V, V OUT = 1.2V, L = 1μH (LQH32CN1R0M53), C OUT = 2.2μF, T A = +25°C, unless otherwise noted.)
100
EFFICIENCY vs. LOAD CURRENT
(V OUT = 1.2V)
100
EFFICIENCY vs. LOAD CURRENT
(V OUT = 0.9V)
100
EFFICIENCY vs. LOAD CURRENT
(LOAD = 7.5 ? )
90
4.7μH
90
4.7μH
90
4.7μH
80
70
2.2μH
1μH
80
70
2.2μH
1μH
80
70
2.2μH
1μH
60
50
40
60
50
40
60
50
40
0.1
1
10
100
1000
0.1
1
10
100
1000
0.5
1.0
1.5
2.0
2.5
47
46
45
LOAD CURRENT (mA)
NO-LOAD SUPPLY CURRENT
vs. SUPPLY VOLTAGE
10
LOAD CURRENT (mA)
SWITCHING FREQUENCY
vs. LOAD CURRENT
1μH
1.24
1.23
1.22
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE vs. LOAD CURRENT
(VOLTAGE POSITIONING)
44
43
42
41
1
2.2μH
4.7μH
1.21
1.20
1.19
1.18
40
39
R1 = R2 = 100k?
0.1
1.17
1.16
R1 = R2 = 100k?
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
100
200
300
400
500
0
100
200
300
400
500
SUPPLY VOLTAGE (V)
LIGHT-LOAD SWITCHING WAVEFORMS
MAX8560 toc10
50mA LOAD
200ns/div
V OUT
20mV/div
I L
200mA/div
0
V LX
2V/div
LOAD CURRENT (mA)
LOAD CURRENT (mA)
HEAVY-LOAD SWITCHING WAVEFORMS
MAX8560 toc11
200mA LOAD
V OUT
20mV/div
I L
200mA/div
0
V LX
2V/div
200ns/div
4
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