參數(shù)資料
型號(hào)： TC1263-5.0VETTR
廠(chǎng)商： Microchip Technology Inc.
英文描述： 500 mA, Fixed-Output, CMOS LDO with Shutdown
中文描述： 500毫安，固定輸出，具有關(guān)斷功能的CMOS LDO穩(wěn)壓器
文件頁(yè)數(shù)： 2/18頁(yè)
文件大?。?/td> 209K
代理商： TC1263-5.0VETTR
TC1263
DS21374C-page 2
2005 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings
Input Voltage .........................................................6.5V
Output Voltage................ (GND
– 0.3V) to (V
IN
+ 0.3V)
Power Dissipation................Internally Limited
(Note 7)
Voltage (max.) on Any Pin: (GND
– 0.3V) to (V
IN
+ 0.3V)
Operating Temperature Range....-40°C < T
J
< +125°C
Storage Temperature..........................-65°C to +150°C
Notice:
Stresses above those listed under "Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operation listings of this specification is not implied. Exposure
to maximum rating conditions for extended periods may affect
device reliability.
DC CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated, V
IN
= V
R
+ 1.0V,
(Note 1)
, I
L
= 100 μA, C
L
= 3.3 μF,
SHDN > V
IH
, T
A
= +25°C.
Boldface
type specifications apply for junction temperatures of -40°C to +125°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Input Operating Voltage
V
IN
2.7
—
6.0
V
Note 2
Maximum Output Current
I
OUTMAX
500
—
—
mA
Output Voltage
V
OUT
Δ
V
OUT
/
Δ
T
Δ
V
OUT
/
Δ
V
IN
Δ
V
OUT
/V
OUT
V
R
– 2.5%
V
R
± 0.5%
V
R
+ 2.5%
V
Note 1
V
OUT
Temperature Coefficient
—
40
—
ppm/°C
Note 3
Line Regulation
—
0.05
0.35
%
(V
R
+ 1V)
≤
V
IN
≤
6V
Load Regulation
(Note 4)
–0.01
0.002
+0.01
%/mA
I
L
= 0.1 mA to I
OUTMAX
Dropout Voltage
(Note 5)
V
IN
-V
OUT
—
20
30
mV
I
L
= 100 μA
—
60
130
I
L
= 100 mA
—
200
390
I
L
= 300 mA
—
350
650
I
L
= 500 mA
Supply Current
I
DD
—
80
130
μA
SHDN = V
IH
, I
L
= 0
Shutdown Supply Current
I
SHDN
—
0.05
1
μA
SHDN = 0V
Power Supply Rejection Ratio
PSRR
—
64
—
db
F
≤
1 kHz
Output Short Circuit Current
I
OUTSC
Δ
V
OUT
/
Δ
P
D
—
1200
1400
mA
V
OUT
= 0V
Thermal Regulation
—
0.04
—
V/W
Note 6
Output Noise
eN
—
260
—
nV/
√
Hz
I
L
= I
OUTMAX
, F = 10 kH
Z
Note
1:
2:
3:
V
R
is the regulator output voltage setting.
The minimum V
IN
has to justify the conditions: V
IN
≥
V
R
+ V
DROPOUT
and V
IN
≥
2.7V for I
L
= 0.1 mA to I
OUTMAX
.
V
V
–
(
)
–
V
OUT
T
4:
Regulation is measured at a constant junction temperature using low duty-cycle pulse testing. Load regulation is tested
over a load range from 0.1 mA to the maximum specified output current. Changes in output voltage due to heating
effects are covered by the thermal regulation specification.
Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal
value measured at a 1.0V differential.
Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied,
excluding load or line regulation effects. Specifications are for a current pulse equal to I
LMAX
at V
IN
= 6V for T = 10 ms.
The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction
temperature and the thermal resistance from junction-to-air (i.e., T
A
, T
J
,
θ
JA
). Exceeding the maximum allowable power
dissipation causes the device to initiate thermal shutdown. Please see
Section 5.0 “Thermal Considerations”
for
more details.
5:
6:
7:
TCV
OUT
6
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=
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