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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 = 0°C to +85°C, unless otherwise noted. Typical values  
CC VL  
REF  
A
are at T = +25°C.)  
A
PARAMETER  
INTERNAL VL REGULATOR AND REFERENCE  
= 5V, I(VL) = 0  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
V
CC  
60  
Regulator Supply Current (V+)  
µA  
V
= 5V, I(VL) = 0, V+ = 4.5V  
CC  
500  
(includes PNP base current)  
Standby Supply Current (V+)  
VL Output Voltage  
60  
µA  
V
SHDN = GND, OVP = V  
CC  
I(VL) = 0 to 25mA, 5V < V+ < 30V  
I(VL) = 0 to 25mA, 6V < V+ < 30V  
Rising edge, hysteresis = 25mV  
Rising edge, hysteresis = 25mV  
No REF load  
4.5  
4.7  
5.0  
5.0  
5.3  
5.3  
VL Undervoltage Lockout Threshold  
3.45  
3.60  
3.15  
1.100  
3.75  
V
V
VL/ V Switchover Threshold  
CC  
REF Output Voltage  
REF Load Regulation  
REF Line Regulation  
OSCILLATOR  
1.090  
1.110  
10  
V
REF load = 0 to 50µA  
mV  
mV  
V
CC  
= 3.3V to 5.5V  
3
SYNC = V  
270  
170  
91  
300  
200  
94  
330  
230  
CC  
Oscillator Frequency  
Maximum Duty Factor  
kHz  
%
SYNC = GND  
SYNC = V  
CC  
SYNC = GND  
93  
96  
Maximum Duty Factor, Dropout Mode SYNC = GND  
SYNC Input Pulse Width High  
98  
99  
%
ns  
200  
200  
SYNC Input Pulse Width Low  
ns  
SYNC Input Rise/Fall Time  
Guaranteed by design  
200  
340  
ns  
SYNC Input Frequency Range  
OVERVOLTAGE PROTECTION  
Overvoltage Trip Threshold  
240  
4
kHz  
FB, with respect to regulation point  
7
10  
80  
-3  
%
µs  
°C  
Overvoltage Fault Propagation Delay  
Thermal Shutdown Threshold  
FB to DL delay, 22mV overdrive, C  
Hysteresis = 10°C  
= 2000pF  
1.25  
150  
GATE  
Catastrophic Output Undervoltage  
Lockout Threshold  
% of nominal output  
60  
70  
%
Catastrophic Output Undervoltage  
Lockout Delay  
From shutdown or power-on-reset state  
Falling edge (hysteresis = 1%)  
6144  
clks  
-6  
%
RESET Trip Threshold  
32768  
clks  
RESET Delay Time  
INPUTS AND OUTPUTS  
Logic Input Voltage High  
Logic Input Voltage Low  
Logic Input Bias Current  
SHDN Input Bias Current  
RESET Output Voltage Low  
RESET Output Leakage Current  
2.4  
V
V
SHDN, SKIP, OVP, SYNC  
SHDN, SKIP, OVP, SYNC  
0.8  
1
-1  
-3  
µA  
µA  
V
Pin at GND or V ; SKIP, OVP, SYNC  
CC  
3
SHDN = GND or V+  
I
= 4mA  
0.4  
1
SINK  
+5.5V stress voltage applied  
µA  
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3
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