TC55 Series
1
µ
A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
FEATURES
I
I
I
I
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I
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Very Low Dropout Voltage .... 120mV typ at 100mA
380mV typ at 200mA
High Output Current .............. 250mA (V
OUT
= 5.0V)
High Accuracy Output Voltage ........................
±
2%
(
±
1% Semicustom Version)
Wide Output Voltage Range .................... 1.1V-6.0V
Low Power Consumption ................... 1.1
µ
A (Typ.)
Low Temperature Drift ................
±
100ppm/
°
C (Typ.)
Excellent Line Regulation ..................0.2%/V (Typ.)
Package Options ............................. 3-Pin SOT-23A
3-Pin SOT-89
Short Circuit Protection
Custom Voltages Available from 1.1V to 6.0V in
0.1V Steps for a 2%, and 2.0V to 6.0V for a 1%
Tolerance
GENERAL DESCRIPTION
The TC55 Series is a collection of CMOS low dropout
positive voltage regulators which can source up to 250mA of
current with an extremely low input-output voltage differen-
tial of 380mV at 200mA.
The low dropout voltage combined with the low current
consumption of only 1.1µA makes this part ideal for battery
operation. The low voltage differential (dropout voltage)
extends battery operating lifetime. It also permits high
currents in small packages when operated with minimum
V
IN
– V
OUT
differentials.
The circuit also incorporates short-circuit protection to
ensure maximum reliability.
PIN CONFIGURATIONS
3-Pin SOT-23A
VIN
3-Pin SOT-89
APPLICATIONS
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Battery-Powered Devices
Cameras and Portable Video Equipment
Pagers and Cellular Phones
Solar-Powered Instruments
Consumer Products
2
TC55
1
GND
3
VOUT
1
GND
2
VIN
TC55
3
VOUT
*SOT-23A-3 is equivalent to EIAJ SC-59
FUNCTIONAL BLOCK DIAGRAM
ORDERING INFORMATION
PART CODE
TC55 RP XX X X X XX XXX
Output Voltage:
Ex: 20 = 2.0V; 60 = 6.0V 1.0% Tol.
Ex: 11 = 1.1V; 60 = 6.0V 2.0% Tol.
Extra Feature Code:
Fixed: 0
VIN
VOUT
Short-circuit
Protection
+
Voltage
Reference
GND
© 2001 Microchip Technology Inc.
DS21435A
Tolerance:
1 = 1.0% (Custom)
2 = 2.0% (Standard)
Temperature:
E: – 40°C to +85°C
Package Type and Pin Count:
CB: 3-Pin SOT-23A
(equivalent to EIAJ SC-59)
MB: 3-Pin SOT-89
Taping Direction:
TR or 713: Standard Taping
RT or 723: Reverse Taping
–
TC55-24
02/01/01
1
µ
A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
TC55 Series
ABSOLUTE MAXIMUM RATINGS*
Item
Input Voltage
Output Current
Output Voltage
Power Dissipation:
(T
A
≤
70°C)
3-Pin SOT-23A
3-Pin SOT-89
Code
V
IN
I
OUT
V
OUT
Pd
T
A
T
stg
Ratings
+12
Pd/(V
IN
– V
OUT
)
(V
SS
– 0.3) to (V
IN
+ 0.3)
240
400
– 40 to +85
– 65 to +150
Units
V
mA
V
mW
°C
°C
Operating Temperature Range
Storage Temperature Range
TC55RP50 ELECTRICAL CHARACTERISTICS:
V
OUT
(S) = 5.0V, T
A
= 25°C unless otherwise specified (see REMARKS).
Symbol
V
OUT
(A)
I
OUT
max
∆V
OUT
V
dif
I
SS
V
OUT
(A)·100
∆V
IN
·V
OUT
(S)
V
IN
∆V
OUT
(A)·10
6
V
OUT
(S)·∆T
A
REMARKS:
Parameter
Output Voltage
Maximum Output Current
Load Regulation
I/O Voltage Difference
Current Consumption
Voltage Regulation
Input Voltage
Temperature Coefficient
of Output Voltage
Long Term Stability
Test Conditions
I
OUT
= 40mA
V
IN
= 6.0V
V
IN
= 6.0V, V
OUT
(A)
≥
4.5V
V
IN
= 6.0 V, 1mA
≤
I
OUT
≤
100mA
I
OUT
= 100mA
I
OUT
= 200mA
V
IN
= 6.0V
I
OUT
= 40mA
6.0V
≤
V
IN
≤
10.0V
I
OUT
= 40mA
– 40°C
≤
T
A
≤
85°C
T
A
= 125°C, 1000 Hours
Min
—
4.90
250
—
—
—
—
—
—
—
—
Typ
—
5.0
—
40
120
380
1.1
0.2
—
±100
0.5
Max
—
5.10
—
80
300
600
3.0
0.3
10.0
—
—
Unit
V
mA
mV
mV
µA
%/V
V
ppm/°C
%
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)
TC55RP40 ELECTRICAL CHARACTERISTICS:
V
OUT
(S) = 4.0V, T
A
= 25°C unless otherwise specified (see REMARKS).
Symbol
V
OUT
(A)
I
OUT
max
∆V
OUT
V
dif
I
SS
∆V
OUT
(A)·100
∆V
IN
·V
OUT
(S)
V
IN
∆V
OUT
(A)
V
OUT
(S)·∆T
A
Parameter
Output Voltage
Maximum Output Current
Load Regulation
I/O Voltage Difference
Current Consumption
Voltage Regulation
Input Voltage
Temperature Coefficient
of Output Voltage
Long Term Stability
Test Conditions
I
OUT
= 40mA
V
IN
= 5.0V
V
IN
= 5.0V, V
OUT
(A)
≥
3.6V
V
IN
= 5.0V, 1mA
≤
I
OUT
≤
100mA
I
OUT
= 100mA
I
OUT
= 200mA
V
IN
= 5.0V
I
OUT
= 40mA
5.0V
≤
V
IN
≤
10.0V
I
OUT
= 40mA
– 40°C
≤
T
A
≤
85°C
T
A
= 125°C, 1000 Hours
2
Min
—
3.92
200
—
—
—
—
—
—
—
—
Typ
—
4.0
—
45
170
400
1.0
0.2
—
±100
0.5
Max
—
4.08
—
90
330
630
2.9
0.3
10.0
—
—
Unit
V
mA
mV
mV
µA
%/V
V
ppm/°C
%
DS21435A
TC55-24
02/01/01
© 2001 Microchip Technology Inc.
1
µ
A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
TC55 Series
TC55RP30 ELECTRICAL CHARACTERISTICS:
V
OUT
(S) = 3.0V, T
A
= 25°C unless otherwise specified (see REMARKS).
Symbol
V
OUT
(A)
I
OUT
max
∆V
OUT
V
dif
I
SS
V
OUT
(A)·100
∆V
IN
·V
OUT
(S)
V
IN
∆V
OUT
(A)·10
6
∆T
A
·V
OUT
(S)
Parameter
Output Voltage
Maximum Output Current
Load Regulation
I/O Voltage Difference
Current Consumption
Voltage Regulation
Input Voltage
Temperature Coefficient
of Output Voltage
Long Term Stability
Test Conditions
I
OUT
= 40mA
V
IN
= 4.0V
V
IN
= 4.0V, V
OUT
(A)
≥
2.7V
V
IN
= 4.0V, 1mA
≤
I
OUT
≤
80mA
I
OUT
= 80mA
I
OUT
= 160mA
V
IN
= 4.0V
I
OUT
= 40mA
4.0V
≤
V
IN
≤
10.0V
I
OUT
= 40mA
– 40°C
≤
T
A
≤
85°C
T
A
= 125°C, 1000 Hours
Min
—
2.94
150
—
—
—
—
—
—
—
—
Typ
—
3.0
—
45
180
400
0.9
0.2
—
±100
0.5
Max
—
3.06
—
90
360
700
2.8
0.3
10.0
—
—
Unit
V
mA
mV
mV
µA
%/V
V
ppm/°C
%
*Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. 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 operational sections of the specifications is not implied. Exposure to Absolute Maximum Rating
Conditions for extended periods may affect device reliability.
MARKING
3-Pin SOT-23A
3-Pin SOT-89
x ➁ ➂ ➃
➁
x
➃
➂
represents first voltage digit
2 3 4 5 6
3
ex: 3.xv =
kkkk
represents first decimal place voltage (x.0 - x.9)
A = x.0
E = x.4
L = x.8
B = x.1
F = x.5
M = x.9
C = x.2
H = x.6
D = x.3
K = x.7
3 E
ex: 3.4V =
kkkk
represents Polarity
0 = Positive (fixed)
represents assembly lot number
© 2001 Microchip Technology Inc.
DS21435A
3
TC55-24
02/01/01
1
µ
A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
TC55 Series
TYPICAL CHARACTERISTICS
1. OUTPUT VOLTAGE vs. OUTPUT CURRENT
TC55RP3002 (V
IN
= 4.0V)
3.1
OUTPUT VOLTAGE V
OUT
(V)
OUTPUT VOLTAGE V
OUT
(V)
TC55RP5002 (V
IN
= 6.0V)
5.1
3.0
80°C
- 30°C
5.0
80°C
- 30°C
2.9
25°C
4.9
25°C
2.8
4.8
2.7
4.7
0
20
40
60
80 100 120 140
160
0
40
80
120
160
200
OUTPUT CURRENT IOUT (mA)
OUTPUT CURRENT IOUT (mA)
2. OUTPUT VOLTAGE vs. INPUT VOLTAGE
TC55RP3002
3.2
OUTPUT VOLTAGE V
OUT
(V)
T
OPR
= 25°C
TC55RP3002
3.05
OUTPUT VOLTAGE V
OUT
(V)
T
OPR
= 25°C
3.04
3.03
3.02
3.01
3.00
2.99
2.98
2.97
2.96
IOUT = 1mA
3.0
IOUT = 1mA
40mA
2.8
2.6
10mA
2.4
2.2
2.5
3.0
INPUT VOLTAGE VIN (V)
3.5
2.95
3
4
5
6
7
8
9
10
INPUT VOLTAGE VIN (V)
TC55RP5002
5.2
OUTPUT VOLTAGE V
OUT
(V)
T
OPR
= 25°C
TC55RP5002
5.05
OUTPUT VOLTAGE V
OUT
(V)
T
OPR
= 25°C
5.04
5.03
5.02
5.01
5.00
4.99
4.98
4.97
4.98
4.95
IOUT = 1mA
5.0
IOUT = 1mA
40mA
4.8
4.6
10mA
4.4
4.2
4.5
5.0
INPUT VOLTAGE VIN (V)
5.5
5
6
7
8
9
10
INPUT VOLTAGE VIN (V)
TC55-24
02/01/01
4
© 2001 Microchip Technology Inc.
DS21435A
1
µ
A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
TC55 Series
TYPICAL CHARACTERISTICS
3. DROPOUT VOLTAGE vs. OUTPUT CURRENT
TC55RP3002
2.0
1.8
DROPOUT VOLTAGE V
DIF
(V)
DROPOUT VOLTAGE V
DIF
(V)
TC55RP5002
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
80°C
–30°C
25°C
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
20 40
60
80 100 120 140
160
80°C
–30°C
25°C
–0.2
OUTPUT CURRENT IOUT (mA)
0
40
80
120
160
200
OUTPUT CURRENT IOUT (mA)
4. OUTPUT VOLTAGE vs. OPERATING TEMPERATURE
TC55RP3002 (
VIN
= 4.0V)
3.10
OUTPUT VOLTAGE V
OUT
(V)
TC55RP5002 (
VIN
= 6.0V)
5.10
OUTPUT VOLTAGE V
OUT
(V)
3.08
3.06
3.04
3.02
3.00
2.98
2.96
2.94
2.92
2.90
–40 –20
IOUT = 10mA
40mA
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
–40 –20
IOUT = 10mA
40mA
0
20
40
60
80
100
0
20
40
60
80
100
OPERATING TEMPERATURE (°C)
OPERATING TEMPERATURE (°C)
5. SUPPLY CURRENT vs. INPUT VOLTAGE
TC55RP3002
1.5
1.4
SUPPLY CURRENT I
SS
(µA)
T
OPR
= 25°C
TC55RP5002
2.0
1.9
SUPPLY CURRENT I
SS
(µA)
T
OPR
= 25°C
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
1.8
1.7
1.6
1.4
1.3
1.2
1.1
1.0
0.5
3
4
5
6
7
8
9
INPUT VOLTAGE VIN (V)
DS21435A
10
5
7
8
9
6
INPUT VOLTAGE VIN (V)
10
© 2001 Microchip Technology Inc.
5
TC55-24
02/01/01
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