TC55
DS21435F-page 2 © 2005 Microchip Technology Inc.
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
Input Voltage ........................................................+12V
Output Current (Continuous)......... P
D
/(V
IN
– V
OUT
)mA
Output Current (peak) ..................................... 500 mA
Output Voltage..................(V
SS
– 0.3V) to (V
IN
+ 0.3V)
Continuous Power Dissipation:
3-Pin SOT-23A..........................................240 mW
3-Pin SOT-89 ............................................500 mW
3-Pin TO-92...............................................440 mW
† Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
PIN FUNCTION TABLE
TC55RP50: ELECTRICAL CHARACTERISTICS
TC55RP40: ELECTRICAL CHARACTERISTICS
Symbol Description
GND Ground Terminal
V
OUT
Regulated Voltage Output
V
IN
Unregulated Supply Input
Electrical Specifications: Unless otherwise specified, V
OUT
(S) = 5.0V, T
A
= +25°C (see Note 1).
Parameters Sym Min Typ Max Units Conditions
Output Voltage
V
OUT
(A)
—
4.90
—
5.0
—
5.10
V
I
OUT
= 40 mA
V
IN
= 6.0V
Maximum Output Current I
OUTMAX
250 — — mA V
IN
= 6.0V, V
OUT
(A) ≥ 4.5V
Load Regulation ΔV
OUT
—4080mVV
IN
= 6.0V, 1 mA ≤ I
OUT
≤ 100 mA
I/O Voltage Difference V
DIF
—
—
120
380
300
600
mV I
OUT
= 100 mA
I
OUT
= 200 mA
Current Consumption I
SS
—1.13.0µAV
IN
= 6.0V
Voltage Regulation V
OUT
(A)•100
ΔV
IN
•V
OUT
(S)
—0.20.3%/VI
OUT
= 40 mA, 6.0V ≤ V
IN
≤ 10.0V
Input Voltage V
IN
——10V
Temperature Coefficient of Output
Voltage
ΔV
OUT
(A)•10
6
V
OUT
(S)•ΔT
A
— ±100 — ppm/°C I
OUT
= 40 mA, -40°C ≤ T
A
≤ +85°C
Long-Term Stability — 0.5 — % T
A
= +125°C, 1000 Hours
Note 1: V
OUT
(S): Preset value of output voltage; V
OUT
(A): Actual value of output voltage; V
DIF
: Definition of I/O voltage
difference = {V
IN
1 – V
OUT
(A)}; V
OUT
(A): Output voltage when I
OUT
is fixed and V
IN
= V
OUT
(S) + 1.0V; V
IN
1: Input voltage
when the output voltage is 98% V
OUT
(A).
Electrical Specifications: Unless otherwise specified, V
OUT
(S) = 4.0V, T
A
= +25°C (see Note 1).
Parameters Sym Min Typ Max Units Conditions
Output Voltage
V
OUT
(A)
—
3.92
—
4.0
—
4.08
VI
OUT
= 40 mA
V
IN
= 5.0V
Maximum Output Current I
OUTMAX
200 — — mA V
IN
= 5.0V, V
OUT
(A) ≥ 3.6V
Load Regulation ΔV
OUT
—4590mVV
IN
= 5.0V, 1 mA ≤ I
OUT
≤ 100 mA
I/O Voltage Difference V
DIF
—
—
170
400
330
630
mV I
OUT
= 100 mA
I
OUT
= 200 mA
Current Consumption I
SS
—1.02.9µAV
IN
= 5.0V
Voltage Regulation V
OUT
(A)•100
ΔV
IN
•V
OUT
(S)
—0.20.3%/VI
OUT
= 40 mA, 5.0V ≤ V
IN
≤ 10.0V
Input Voltage V
IN
——10V
Temperature Coefficient of Output
Voltage
ΔV
OUT
(A)•10
6
V
OUT
(S)•ΔT
A
— ±100 — ppm/°C I
OUT
= 40 mA, -40°C ≤ T
A
≤ +85°C
Long-Term Stability — 0.5 — % T
A
= +125°C, 1000 Hours
Note 1: V
OUT
(S): Preset value of output voltage; V
OUT
(A): Actual value of output voltage; V
DIF
: Definition of I/O voltage
difference = {V
IN
1 – V
OUT
(A)}; V
OUT
(A): Output voltage when I
OUT
is fixed and V
IN
= V
OUT
(S) + 1.0V; V
IN
1: Input voltage
when the output voltage is 98% V
OUT
(A).
