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MAX1636EAP 参数 Datasheet PDF下载

MAX1636EAP图片预览
型号: MAX1636EAP
PDF下载: 下载PDF文件 查看货源
内容描述: 低电压,高精度降压型控制器,用于便携式CPU电源 [Low-Voltage, Precision Step-Down Controller for Portable CPU Power]
分类和应用: 控制器便携式
文件页数/大小: 24 页 / 220 K
品牌: MAXIM [ MAXIM INTEGRATED PRODUCTS ]
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Lo w -Vo lt a g e , P re c is io n S t e p -Do w n  
Co n t ro lle r fo r P o rt a b le CP U P o w e r  
MAX136  
ELECTRICAL CHARACTERISTICS (continued)  
(Circuit of Figure 1, V+ = 15V, SYNC = VL = V , I = 0mA, I  
= 0mA, T = -40°C to +85°C, unless otherwise noted.) (Note 1)  
CC VL  
REF  
A
PARAMETER  
OSCILLATOR  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
SYNC = V  
270  
170  
200  
200  
330  
230  
CC  
Oscillator Frequency  
kHz  
SYNC = GND  
SYNC Input Pulse Width High  
SYNC Input Pulse Width Low  
SYNC Input Rise/Fall Time  
ns  
ns  
Guaranteed by design  
200  
340  
ns  
SYNC Input Frequency Range  
OVERVOLTAGE PROTECTION  
Overvoltage Trip Threshold  
240  
kHz  
FB, with respect to regulation point  
% of nominal output  
3.5  
60  
-7  
10  
80  
%
%
%
Catastrophic Output Undervoltage  
Lockout Threshold  
Falling edge (hysteresis = 1%)  
-1.5  
RESET Trip Threshold  
INPUTS AND OUTPUTS  
Logic Input Voltage High  
Logic Input Voltage Low  
RESET Output Voltage Low  
Gate-Driver On-Resistance  
2.4  
V
V
V
SHDN, SKIP, OVP, SYNC  
SHDN, SKIP, OVP, SYNC  
0.8  
0.4  
7
I
= 4mA  
SINK  
High or low, DH or DL  
Note 1: Specifications to -40°C are guaranteed by design and not production tested.  
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s  
(Circuit of Figure 1, V = 7V, T = +25°C, unless otherwise noted.)  
IN  
A
EFFICIENCY vs. LOAD CURRENT  
(3.3V/3A CIRCUIT)  
EFFICIENCY vs. LOAD CURRENT  
(5V/3A CIRCUIT)  
EFFICIENCY vs. LOAD CURRENT  
(1.8V/1A CIRCUIT)  
100  
100  
100  
V
IN  
= 7V  
V
IN  
= 7V  
V
IN  
= 15V  
90  
80  
70  
60  
90  
80  
70  
60  
90  
80  
70  
60  
V
IN  
= 15V  
V
= 7V  
IN  
V
IN  
= 15V  
V
IN  
= 30V  
V
IN  
= 22V  
V
IN  
= 30V  
V
IN  
= 22V  
V
IN  
= 22V  
50  
50  
50  
1m  
10m  
100m  
LOAD CURRENT (A)  
1
10  
1m  
10m  
100m  
1
10  
1m  
10m  
100m  
LOAD CURRENT (A)  
1
10  
LOAD CURRENT (A)  
_______________________________________________________________________________________  
5
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