Datasheet

 2009-2013 Microchip Technology Inc. DS20002200D-page 3
MCP1804
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
Input Voltage ........................................................................................................................................................... +30V
Output Current (Continuous)............................................................................................................. P
D
/(V
IN
-V
OUT
) mA
Output Current (Peak).......................................................................................................................................... 300 mA
Output Voltage ...................................................................................................................... (V
SS
- 0.3V) to (V
IN
+0.3V)
SHDN
Voltage.................................................................................................................................. (V
SS
- 0.3V) to +30V
† 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.
ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, all limits are established for V
IN
=V
R
+2.0V, Note 1,
C
OUT
= 1 µF (X7R), C
IN
= 1 µF (X7R), V
SHDN
=V
IN
, T
A
=+25°C
Parameters Sym. Min. Typ. Max. Units Conditions
Input / Output Characteristics
Input Operating
Voltage
V
IN
2.0 — 28.0 V Note 1
Input Quiescent
Current
I
Q
—I
L
=0mA
—50105µA1.8V V
OUT
 5.0V
— 60 115 µA 5.1V  V
OUT
 12.0V
— 65 125 µA 12.1V  V
OUT
 18.0V
Shutdown Current I
SHDN
— 0.01 0.10 µA SHDN =0V
Maximum Output
Current
I
OUT
—V
IN
=V
R
+3.0V
100 — — mA V
OUT
<3.0V
150 — — mA V
OUT
 3.0V
Current Limiter I
LIMIT
— 200 — mA
Output Short Circuit
Current
I
OUT_SC
—40 — mA
Output Voltage
Regulation
V
OUT
V
R
-2.0% V
R
V
R
+2.0% V I
OUT
=10mA, Note 2
V
OUT
Temperature
Coefficient
TCV
OUT
— ±100 — ppm/°C I
OUT
=20mA,
-40°C  T
A
85°C, Note 3
Note 1: The minimum V
IN
must meet one condition: V
IN
 (V
R
+2.0V).
2: V
R
is the nominal regulator output voltage with an input voltage of V
IN
=V
R
+2.0V.
For example: V
R
= 1.8V, 2.5V, 3.0V, 3.3V, etc.
3: TCV
OUT
=(V
OUT-HIGH
-V
OUT-LOW
)*10
6
/ (V
R
* Temperature), V
OUT-HIGH
= highest voltage measured
over the temperature range. V
OUT-LOW
= lowest voltage measured over the temperature range.
4: 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
.
5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its
measured value with an applied input voltage of V
R
+2.0V.