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MCP1825-5002E/ET 参数 Datasheet PDF下载

MCP1825-5002E/ET图片预览
型号: MCP1825-5002E/ET
PDF下载: 下载PDF文件 查看货源
内容描述: 500毫安,低电压,低静态电流LDO稳压器 [500 mA, Low Voltage, Low Quiescent Current LDO Regulator]
分类和应用: 线性稳压器IC调节器电源电路输出元件
文件页数/大小: 38 页 / 631 K
品牌: MICROCHIP [ MICROCHIP TECHNOLOGY ]
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MCP1825/MCP1825S
1.0
ELECTRICAL
CHARACTERISTICS
† Notice:
Stresses above those listed under “Maximum Rat-
ings” 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. Expo-
sure to maximum rating conditions for extended periods may
affect device reliability.
Absolute Maximum Ratings †
V
IN
....................................................................................6.5V
Maximum Voltage on Any Pin .. (GND – 0.3V) to (V
DD
+ 0.3)V
Maximum Power Dissipation......... Internally-Limited (Note
6)
Output Short Circuit Duration ................................ Continuous
Storage temperature .....................................-65°C to +150°C
Maximum Junction Temperature, T
J
........................... +150°C
ESD protection on all pins (HBM/MM)
........... ≥
4 kV;
300V
AC/DC CHARACTERISTICS
Electrical Specifications:
Unless otherwise noted, V
IN
= V
OUT(MAX)
+ V
DROPOUT(MAX)
V
R
= 1.8V for Adjustable Output,
I
OUT
= 1 mA, C
IN
= C
OUT
= 4.7 µF (X7R Ceramic), T
A
= +25°C.
Boldface
type applies for junction temperatures, T
J
7)
of
-40°C to +125°C
Parameters
Input Operating Voltage
Input Quiescent Current
Input Quiescent Current for
SHDN Mode
Maximum Output Current
Line Regulation
Load Regulation
Output Short Circuit Current
Sym
V
IN
I
q
I
SHDN
I
OUT
ΔV
OUT
/
(V
OUT
x
ΔV
IN
)
ΔV
OUT
/V
OUT
I
OUT_SC
V
ADJ
I
ADJ
TCV
OUT
V
OUT
Min
2.1
500
-1.0
0.402
-10
V
R
- 2.5%
120
0.1
±0.05
±0.5
1.2
Typ
Max
6.0
220
3
±0.16
1.0
0.418
+10
Units
V
µA
µA
mA
%/V
%
A
I
L
= 0 mA, V
OUT
= 0.8V to
5.0V
SHDN = GND
V
IN
= 2.1V to 6.0V
V
R
= 0.8V to 5.0V,
V
IN
6V
I
OUT
= 1 mA to 500 mA,
4)
R
LOAD
< 0.1Ω, Peak Current
V
IN
= 2.1V to V
IN
= 6.0V,
I
OUT
= 1 mA
V
IN
= 6.0V, V
ADJ
= 0V to 6V
Conditions
Adjust Pin Characteristics (Adjustable Output Only)
Adjust Pin Reference Voltage
Adjust Pin Leakage Current
Adjust Temperature Coefficient
0.410
±0.01
40
V
nA
ppm/°C
Fixed-Output Characteristics (Fixed Output Only)
Voltage Regulation
Note 1:
2:
3:
4:
5:
6:
V
R
±0.5%
V
R
+ 2.5%
V
The minimum V
IN
must meet two conditions: V
IN
2.1V and V
IN
V
OUT(MAX)
+
V
DROPOUT(MAX).
V
R
is the nominal regulator output voltage for the fixed cases. V
R
= 1.2V, 1.8V, etc. V
R
is the desired set point output
voltage for the adjustable cases. V
R
= V
ADJ *
((R
1
/R
2
)+1).
TCV
OUT
= (V
OUT-HIGH
– V
OUT-LOW
) *10
6
/ (V
R
*
ΔTemperature).
V
OUT-HIGH
is the highest voltage measured over the
temperature range. V
OUT-LOW
is the lowest voltage measured over the temperature range.
Load regulation is measured at a constant junction temperature using low duty-cycle pulse testing. Load regulation is
tested over a load range from 1 mA to the maximum specified output current.
Dropout voltage is defined as the input-to-output voltage differential at which the output voltage drops 2% below its
nominal value that was measured with an input voltage of V
IN
= V
OUT(MAX)
+ V
DROPOUT(MAX)
.
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 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.
7:
©
2008 Microchip Technology Inc.
DS22056B-page 7