Datasheet

 2009-2013 Microchip Technology Inc. DS20002200D-page 5
MCP1804
Power Supply Ripple
Rejection Ratio
PSRR — 50 — dB f = 1 kHz, I
L
=20 mA,
V
IN_AC
=0.5V pk-pk,
C
IN
=0µF
Thermal Shutdown
Protection
TSD — 150 — °C T
J
= 150°C
Thermal Shutdown
Hysteresis
TSD — 25 — °C
TEMPERATURE SPECIFICATIONS
Parameters Sym. Min. Typ. Max. Units Conditions
Temperature Ranges
Operating Temperature Range T
A
-40 — +85 °C
Operating Junction Temperature
Range
T
J
-40 — +125 °C
Storage Temperature Range T
A
-55 — +125 °C
Thermal Package Resistance
Thermal Resistance, 3LD SOT-89 
JA
— 180 —
°C/W
EIA/JEDEC
®
JESD51-7
FR-4 0.063 4-Layer Board

JC
—52—
Thermal Resistance, 3LD SOT-223 
JA
—62—
°C/W
EIA/JEDEC JESD51-7
FR-4 0.063 4-Layer Board

JC
—15—
Thermal Resistance, 5LD SOT-23 
JA
— 256 —
°C/W
EIA/JEDEC JESD51-7
FR-4 0.063 4-Layer Board

JC
—81—
Thermal Resistance, 5LD SOT-89 
JA
— 180 —
°C/W
EIA/JEDEC JESD51-7
FR-4 0.063 4-Layer Board

JC
—52—
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.