參數(shù)資料
型號： MCP1700T-2502EMB
廠商： Microchip Technology Inc.
元件分類： 基準電壓源/電流源
英文描述： Low Quiescent Current LDO
中文描述： 低靜態(tài)電流低壓降穩(wěn)壓器
文件頁數(shù)： 3/24頁
文件大?。?/td> 638K
代理商： MCP1700T-2502EMB
2007 Microchip Technology Inc.
DS21826B-page 3
MCP1700
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings
V
DD
............................................................................................+
6.5V
All inputs and outputs w.r.t. .............(V
SS
-0.3V) to (V
IN
+0.3V)
Peak Output Current....................................Internally Limited
Storage temperature .....................................-65°C to +150°C
Maximum Junction Temperature...................................150°C
Operating Junction Temperature...................-40°C to +125°C
ESD protection on all pins (HBM;MM)
...............≥
4 kV;
≥
400V
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
operational listings of this specification is not implied.
Exposure to maximum rating conditions for extended periods
may affect device reliability.
DC CHARACTERISTICS
Electrical Characteristics:
Unless otherwise specified, all limits are established for V
IN
= V
R
+ 1, I
LOAD
= 100 μA,
C
OUT
= 1 μF (X7R), C
IN
= 1 μF (X7R), T
A
= +25°C.
Boldface
type applies for junction temperatures, T
J
(Note 6)
of -40°C to +125°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Input / Output Characteristics
Input Operating Voltage
V
IN
I
q
2.3
—
6.0
V
Note 1
Input Quiescent Current
—
1.6
4
μA
I
L
= 0 mA, V
IN
= V
R
+1V
For V
R
≥
2.5V
For V
R
<
2.5V
V
IN
= V
R
+ V, V
OUT
= GND,
Current (peak current) measured
10 ms after short is applied.
Maximum Output Current
I
OUT_mA
250
200
—
—
—
—
mA
Output Short Circuit Current
I
OUT_SC
—
408
—
mA
Output Voltage Regulation
V
OUT
V
R
-3.0%
V
R
-2.0%
—
V
R
±0.4
%
V
R
+3.0%
V
R
+2.0%
—
V
Note 2
V
OUT
Temperature Coefficient
Line Regulation
TCV
OUT
Δ
V
OUT
/
(V
OUT
X
Δ
V
IN
)
Δ
V
OUT
/V
OUT
50
ppm/°C
Note 3
(V
R
+1)V
≤
V
IN
≤
6V
-1.0
±0.75
+1.0
%/V
Load Regulation
-1.5
±1.0
+1.5
%
I
L
= 0.1 mA to 250 mA for V
R
≥
2.5V
I
L
= 0.1 mA to 200 mA for V
R
<
2.5V
Note 4
Dropout Voltage
V
R
>
2.5V
Dropout Voltage
V
R
<
2.5V
Output Rise Time
V
IN
-V
OUT
—
178
350
mV
I
L
= 250 mA,
(Note 1, Note 5)
V
IN
-V
OUT
—
150
350
mV
I
L
= 200 mA,
(Note 1, Note 5)
T
R
—
500
—
μs
10% V
R
to 90% V
R
V
IN
= 0V to 6V,
R
L
= 50
Ω
resistive
I
L
= 100 mA, f = 1 kHz, C
OUT
= 1 μF
Output Noise
e
N
—
3
—
μV/(Hz)
1/2
Note
1:
2:
The minimum V
IN
must meet two conditions: V
IN
≥
2.3V and V
IN
≥ (
V
R
+
3.0%
) +
V
DROPOUT
.
V
R
is the nominal regulator output voltage. For example: V
R
= 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 5.0V. The
input voltage (V
IN
= V
R
+ 1.0V); I
OUT
= 100 μA.
TCV
OUT
= (V
OUT-HIGH
- V
OUT-LOW
) *10
6
/ (V
R
*
Δ
Temperature), V
OUT-HIGH
= highest voltage measured over the
temperature range. V
OUT-LOW
= lowest voltage measured over the temperature range.
Load regulation is measured at a constant junction temperature using low duty cycle pulse testing. Changes in output
voltage due to heating effects are determined using thermal regulation specification TCV
OUT
.
Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its measured
value with a V
R
+ 1V differential applied.
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 will cause the device operating junction temperature to exceed the maximum 150°C rating. Sustained
junction temperatures above 150°C can impact the device reliability.
The junction temperature is approximated by soaking the device under test at an ambient temperature equal to the
desired Junction temperature. The test time is small enough such that the rise in the Junction temperature over the
ambient temperature is not significant.
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