Datasheet

MCP1804
DS20002200D-page 4  2009-2013 Microchip Technology Inc.
Line Regulation V
OUT
/(V
OUT-
XV
IN
)
—(V
R
+2V) V
IN
 28V, Note 1
— 0.05 0.10 %/V I
OUT
=5mA
— 0.15 0.30 %/V I
OUT
=13mA
Load Regulation V
OUT
/V
OUT
—I
L
= 1.0 mA to 50 mA, Note 4
—50 90 mV1.8V V
OUT
 5.0V
— 110 175 mV 5.1V  V
OUT
 12.0V
— 180 275 mV 12.1V  V
OUT
 18.0V
Dropout Voltage
Note 1, Note 5
V
DROPOUT
—I
L
=20mA
— 550 710 mV 1.8V  V
R
 1.9V
— 450 600 mV 2.0V  V
R
 2.1V
— 390 520 mV 2.2V  V
R
 2.4V
— 310 450 mV 2.5V  V
R
 2.9V
— 260 360 mV 3.0V  V
R
 3.9V
— 220 320 mV 4.0V  V
R
 4.9V
— 190 280 mV 5.0V  V
R
 6.4V
— 170 230 mV 6.5V  V
R
 8.0V
— 130 190 mV 8.1V  V
R
 10.0V
— 120 170 mV 10.1V  V
R
 18.0V
—I
L
=100mA
— 2200 2700 mV 1.8V  V
R
 1.9V
— 1900 2600 mV 2.0V  V
R
 2.1V
— 1700 2200 mV 2.2V  V
R
 2.4V
— 1500 1900 mV 2.5V  V
R
 2.9V
— 1300 1700 mV 3.0V  V
R
 3.9V
— 1100 1500 mV 4.0V  V
R
 4.9V
— 1000 1300 mV 5.0V  V
R
 6.4V
— 800 1150 mV 6.5V  V
R
 8.0V
— 700 950 mV 8.1V  V
R
 10.0V
— 650 850 mV 10.1V  V
R
 18.0V
SHDN
“H” Voltage V
SHDN_H
1.1 — V
IN
VV
IN
= 28V
SHDN
“L” Voltage V
SHDN_L
0—0.35VV
IN
=28V
SHDN
Current I
SHDN
-0.1 — 0.1 µA V
IN
=28V, V
SHDN
= GND or
V
IN
ELECTRICAL CHARACTERISTICS (CONTINUED)
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
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.