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CYT6166

型号：

CYT6166

描述：

- 12号的铝制车身绘（ RAL 7032 ）

品牌：

ETC[ ETC ]

页数：

5 页

PDF大小：

244 K

下载PDF手册
150mA Super LDO  
Linear Regulator  
CYT6166  
Description  
Features  
The CYT6166 is an efficient linear voltage regulator.  
It has extra low dropout voltage. At light loads the  
typical dropout voltage is 10mV, and at full load  
the typical dropout voltage is 100mV. The output  
voltage accuracy is better than 2%.  
¾
¾
¾
Typical 0.1V dropout voltage at 100mA.  
Meets Intel® Slot 1 and Slot 2 requirements  
Guaranteed 150mA output over the full  
operating temperature range  
¾
Low 180mV typical dropout voltage at full  
load  
The CYT6166 has low ground current, so it can  
help prolong battery life. The CYT6166 is specially  
designed for hand-held, battery-powered devices.  
¾
¾
¾
¾
¾
Extremely tight load and line regulation  
Low temperature coefficient  
Current and thermal limiting  
No-load stability  
Standard SOT-23-3 and To-92 packages  
Pin Configuration  
TOP-VIEW  
2
Applications  
¾
¾
¾
¾
CD/DVD-ROM, CD/RW  
3
Wireless LAN card, Keyboard, Mouse  
Battery Powered Equipment  
PCMCIA Card  
1
SOT-23  
Top view  
3
2
1
Ordering information  
TO-92  
CYT6166□□□  
Typical Applications  
PIN(1->3) 1) G: OUT/IN/GND  
2) N: GND/OUT/IN  
Package Type: 1) L: SOT-23-3  
CYT6166□□□  
3.3V  
Vin  
Vout  
M0  
5V  
PIN(1->3) 1) G: OUT/GND/IN  
2) N: GND/IN/OUT  
C1  
C=10u  
R2  
rload  
C0  
C=10u  
Package Type: 2) H: TO-92  
Output Voltage: 1) A: Vout=3.3V  
2) B: Vout=2.8V  
Control  
Logic  
gnd  
gnd  
Over Current  
Protection  
Thermal  
1.25V Ref  
Protection  
3) C: Vout=2.5V  
4) D: Vout=1.8V  
gnd  
5) E: Vout=1.5V  
Preliminary and all contents are subject to change without prior notice.  
150mA Super LDO  
Linear Regulator  
CYT6166  
Absolute Maximum Ratings (Note 1)  
Supply Input Voltage (VIN) ..……… -0.7V to +7V  
Power Dissipation (PD)...Internally Limited, Note 3  
Junction Temperature (TJ)…….…..0℃ to +125℃  
Lead Temperature (soldering, 5 sec.)….….260℃  
Storage Temperature (TS)……….-10℃ to +150℃  
Operating Ratings (Note2)  
Supply Input Voltage (VIN) ……...… +2.5V to +6V  
Junction Temperature (TJ)…….…..0℃ to +125℃  
Package Thermal  
Resistance…………………………………..Note 3  
Electrical Characteristics  
VIN = VOUT + 1.0V; COUT = 4.7µF, IOUT =100µA; TJ =25℃, bold values indicate -0℃≤ TJ ≤+75℃ unless noted.  
Symbol  
Parameter  
Conditions  
Min Typical Max Units  
10mA≦IOUT≦150mA TA=25℃,  
VOUT  
Output Voltage  
Accuracy  
1.470  
1.764  
2.450  
2.744  
3.234  
1.5  
1.8  
2.5  
2.8  
3.3  
1.530  
1.836  
2.550  
2.856  
3.366  
V
V
V
V
V
CYT6166-1.5, 2.5V≦V ≦5.5V  
IN  
CYT6166-1.8, 2.8V≦V ≦5.5V  
IN  
CYT6166-2.5, 3.5V≦V ≦5.5V  
IN  
CYT6166-2.8, 3.8V≦V ≦5.5V  
IN  
CYT6166-3.3, 4.3V≦V ≦5.5V  
IN  
ppm/  
Output Voltage  
∆VOUT /∆T  
Note 4  
40  
℃
Temperature Coefficient  
∆VOUT / VOUT Line Regulation  
∆VOUT / VOUT Load Regulation  
VIN = VOUT + 1V to 5.5V  
0.3  
0.5  
9
%
I
OUT =10mA to 150mA, Note 5  
IOUT =10mA  
OUT =150mA  
VOUT>2V IOUT =10mA  
OUT =150mA  
%
VIN - VOUT  
Dropout  
Voltage,  
Note 6  
VOUT<2V  
mV  
I
175  
4.6  
90  
mV  
I
Thermal Protection  
Thermal Protection Temperature  
Protection Hysterisys  
f =120Hz  
TPROTECTION  
150  
30  
℃
℃
PSRR  
IGROUND  
ILIMIT  
Ripple Rejection  
Ground Current  
Current Limit  
75  
DB  
mA  
A
IOUT=10mA  
1
VOUT =0V  
1.5  
Note 1: Exceeding the absolute maximum rating may damage the device.  
Note 2: The device is not guaranteed to function outside its operating rating.  
Note 3: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(max) = (TJ(max)  
-
TA)/θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the  
regulator will go into thermal shutdown. See Table 1 and the “Thermal Considerations” section for details.  
Note 4: Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range.  
Note 5: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for  
load regulation in the load range from 100µA to 300mA. Changes in output voltage due to heating effects are  
covered by the thermal regulation specification.  
Note 6: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its  
nominal value measured at 1V differential.  
Preliminary and all contents are subject to change without prior notice.  
150mA Super LDO  
Linear Regulator  
CYT6166  
Thermal Considerations:  
Application Hints:  
Like any Low drop out regulator, CYT6166 requires  
external capacitors to ensure stability. The  
external capacitors must be carefully selected to  
ensure the performances.  
It is important that the thermal limit of the package  
should not be exceeded. The CYT6166 has built-in  
thermal protection. When the thermal limit is  
exceeded, the IC will enter protection, and the  
Vout will be reset to zero. The power dissipation  
for a given application can be calculated as  
follows:  
Input Capacitor:  
An Input Capacitor of at least 10uF is required.  
Ceramic or Tantalum can be used. The value can  
be increased without upper limit.  
The Power Dissipation (PD) is  
PD = IOUT * [VIN – VOUT  
]
Output Capacitor:  
An Output Capacitor is required for look stability. It  
must be located no more than 1cm away from the  
Vout pin, and connected directly between Vout  
and GND pins. The minimum value is 10uF but  
once again its value can be increased without  
limit.  
The thermal limit of the package is then limited to  
PD(max) = [TJ – TA]/θJA where TJ is the junction  
temperature, TA is ambient temperature, and θJA is  
around 220C/W for CYT6166. CYT6166 is designed  
to enter thermal protection at 150C. For example,  
if TA is 50C then the max PD is limited to about  
0.45W. In other words, if IOUT(max) = 150mA, then  
[VIN – VOUT] can not exceed 3V.  
TYPICAL PERFORMANCE CHARACTERISTICS  
(Vin=5V,Vout=3.3V,Cin=1uF;Cout=10uF,TA=25℃,unless otherwise noted.)  
Vout Vs I l oad  
4
3
2
1
0
0
100  
200  
300  
400  
500  
600  
Il oad(mA)  
Preliminary and all contents are subject to change without prior notice.  
150mA Super LDO  
Linear Regulator  
CYT6166  
Line Transient  
Load Transient  
Load Transient  
Load Transient  
Preliminary and all contents are subject to change without prior notice.  
150mA Super LDO  
Linear Regulator  
CYT6166  
OUTLINE DRAWING SOT-23  
C
B
J
H
DIMENSIONS  
INCHES  
MM  
MIN MAX  
DIMN  
MIN MAX  
0.110 0.120  
0.047 0.055  
0.083 0.104  
0.035 0.040  
0.070 0.080  
0.018 0.024  
0.015 0.020  
D
2.80  
1.20  
2.10  
0.89  
1.78  
0.45  
0.37  
3.04  
1.40  
2.64  
1.03  
2.05  
0.60  
0.51  
0.10  
1.02  
0.18  
0.69  
A
B
C
D
E
F
G
H
J
A
E
G
F
0.0005 0.004 0.013  
0.034 0.040 0.887  
0.003 0.007 0.085  
K
K
L
L
-
0.027  
-
OUTLINE DRAWING TO-92  
A
DIMENSIONS  
INCHES  
MM  
N
B
D
DIM  
MIN MAX MIN MAX  
0.175 0.205 4.445 5.207  
0.170 0.210 4.318 5.334  
0.500 0.610 12.70 15.50  
0.016 0.021 0.407 0.533  
0.045 0.055 1.143 1.397  
0.095 0.105 2.413 2.667  
0.080 0.105 2.032 2.667  
0.125 0.165 3.175 4.191  
A
B
E
F
G
H
J
E
G
F
H
K
K
J
Preliminary and all contents are subject to change without prior notice.  
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