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MAX38640 PDF预览

MAX38640

更新时间: 2023-12-20 18:44:49
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
18页 994K
描述
微小尺寸、1.8V–5.5V输入、330nA IQ、700mA nanoPower降压型转换器

MAX38640 数据手册

 浏览型号MAX38640的Datasheet PDF文件第3页浏览型号MAX38640的Datasheet PDF文件第4页浏览型号MAX38640的Datasheet PDF文件第5页浏览型号MAX38640的Datasheet PDF文件第7页浏览型号MAX38640的Datasheet PDF文件第8页浏览型号MAX38640的Datasheet PDF文件第9页 
MAX38640–MAX38643  
Tiny 1.8V to 5.5V Input, 330nA I , 700mA  
Q
nanoPower Buck Converter  
Electrical Characteristics  
(V = 3.3V, V  
= 1.8V, T = -40°C to +85°C, C = 10µF, C  
= 22µF, unless otherwise specified. (Note 2))  
OUT  
IN  
OUT  
A
IN  
PARAMETER  
Shutdown Current  
Input Voltage Range  
SYMBOL  
CONDITIONS  
= 0V, T = +25°C  
MIN  
TYP  
MAX  
0.1  
UNITS  
I
V
EN  
0.005  
µA  
V
IN_SD  
A
V
Guaranteed by output accuracy  
1.8  
5.5  
IN_RANGE  
V
R
> 50kΩ rising  
V
IN  
1.75  
50  
1.8  
V
UVLO  
UVLO  
SEL  
(MAX38640A/1A/  
2A/3A),  
(MAX38640B/1B/  
2B/3B)  
Hysteresis  
mV  
Input Undervoltage  
Lockout  
V
R
SEL  
< 50kΩ  
V
IN  
rising  
2.6  
2.7  
V
mV  
V
(MAX38640A/1A/  
2A/3A)  
Hysteresis  
125  
Output Voltage Range  
Output Accuracy  
V
Guaranteed by output accuracy  
0.5  
5
OUT_RANGE  
OUT falling, when LX begins switching  
V
above 1MHz, V  
= 0.7V to 3.3V, V =  
-1.75  
+1.75  
%
%
OUT_ACC  
OUT  
IN  
5.5V (Note 3)  
V
OUT  
= 1.8V, V = 2.0V to 5.5V, I  
=
OUT  
IN  
DC Line Regulation  
V
LREG  
I
Q_IN  
±1.5  
330  
10mA to 160mA  
= V , not switching V = 106% of  
OUT  
V
EN  
IN  
Quiescent Supply  
Current into IN  
target voltage, V  
= 2.5V,  
660  
nA  
OUT TARGET  
T
A
= +25°C  
V
= V , not switching V  
= 106% of  
OUT  
EN  
IN  
Quiescent Supply  
Current into OUT  
I
target voltage, V  
= 2.5V,  
10  
nA  
Q_OUT  
OUT TARGET  
T
A
= +25°C  
Soft-Start Slew Rate  
LX Leakage Current  
dV  
/dt  
V
= 1.8V, no load  
OUT  
6.5  
2
mV/µs  
nA  
OUT  
I
V
LX  
= V = 5.5V, T = +25°C  
100  
1200  
600  
LEAK_LX  
IN  
A
MAX38643  
800  
400  
225  
1000  
500  
250  
95  
Inductor Peak Current  
Limit  
I
MAX38641/MAX38642  
MAX38640  
mA  
PEAK_LX  
300  
MAX38643  
150  
MAX38641/  
MAX38642  
High-Side R  
R
V
= 3.3V  
= 3.3V  
170  
320  
mΩ  
DSON  
DS_H  
IN  
MAX38640  
MAX38643  
320  
50  
600  
90  
MAX38641/  
MAX38642  
Low-Side R  
R
V
V
80  
150  
5
160  
290  
mΩ  
DSON  
DS_L  
IN  
MAX38640  
Zero-Crossing  
Threshold  
I
= 1.2V, percent of I  
PEAK_LX  
%
ZX_LX  
OUT  
Enable Input Leakage  
I
V
V
V
= 5.5V, T = +25°C  
0.1  
0.8  
0.7  
100  
1.2  
nA  
LEAK_EN  
EN  
EN  
EN  
A
V
EN_R  
rising  
falling  
Enable Voltage  
Threshold  
V
V
EN_F  
0.4  
50  
Active Discharge  
Resistance (MAX38640/  
1/3 Only)  
R
V
EN  
= 0V  
85  
200  
Ω
OUT_DIS  
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