TC55RP1201ECBTR [MICROCHIP]
1.2 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO3, PLASTIC, EIAJ, SC-59, TO-236, SOT-23A, 3 PIN;
| 型号： | TC55RP1201ECBTR |
| 厂家： | 
MICROCHIP |
| 描述： | 1.2 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO3, PLASTIC, EIAJ, SC-59, TO-236, SOT-23A, 3 PIN 光电二极管 |
| 文件： | 总18页 (文件大小：366K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Obsolete Device
TC55
1 µA Low Dropout Positive Voltage Regulator
Features
General Description
• Low Dropout Voltage: 120 mV (typ) at 100 mA,
380 mV (typ) at 200 mA
The TC55 Series is a collection of CMOS low dropout,
positive voltage regulators that can source up to
250 mA of current, with an extremely low input-output
voltage differential of 380 mV (typ) at 200 mA.
• High Output Current: 250 mA (VOUT = 5.0V)
• High Accuracy Output Voltage: ±2% (max)
(±1% Semi-Custom Version)
The TC55’s low dropout voltage, combined with the low
current consumption of only 1.1 µA (typ), makes it ideal
for battery operation. The low voltage differential (drop-
out voltage) extends the battery operating lifetime. It
also permits high currents in small packages when
operated with minimum VIN – VOUT differentials.
• Low Power Consumption: 1.1 µA (typ)
• Low Temperature Drift: ±100 ppm/°C (typ)
• Excellent Line Regulation: 0.2%/V (typ)
• Package Options: 3-Pin SOT-23A, 3-Pin SOT-89
and 3-Pin TO-92
The circuit also incorporates short-circuit protection to
ensure maximum reliability.
• Short-Circuit Protection
• Standard Output Voltage Options: 1.2V, 1.8V,
2.5V, 3.0V, 3.3V, 5.0V
Functional Block Diagram
VIN
VOUT
Applications
• Battery-Powered Devices
• Cameras and Portable Video Equipment
• Pagers and Cellular Phones
• Solar Powered Instruments
• Consumer Products
Short-Circuit
Protection
+
–
Voltage
Reference
Package Types
3-Pin SOT-23A
3-Pin SOT-89
VIN
3
VIN
GND
TC55
TC55
1
2
1
2
3
GND
VOUT
GND VIN VOUT
3-Pin TO-92
1 2 3
Bottom
View
GND VIN VOUT
Note: 3-Pin SOT-23A is equivalent to the
EIAJ SC-59.
© 2005 Microchip Technology Inc.
DS21435F-page 1
TC55
† 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.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
Input Voltage ........................................................+12V
Output Current (Continuous)......... PD/(VIN – VOUT)mA
Output Current (peak) ..................................... 500 mA
Output Voltage..................(VSS – 0.3V) to (VIN + 0.3V)
PIN FUNCTION TABLE
Symbol
Description
Ground Terminal
Continuous Power Dissipation:
GND
VOUT
VIN
3-Pin SOT-23A ..........................................240 mW
3-Pin SOT-89 ............................................500 mW
3-Pin TO-92...............................................440 mW
Regulated Voltage Output
Unregulated Supply Input
TC55RP50: ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, V
(S) = 5.0V, T = +25°C (see Note 1).
OUT
A
Parameters
Sym
Min
Typ
Max
Units
Conditions
Output Voltage
—
4.90
—
5.0
—
5.10
I
= 40 mA
OUT
V
(A)
V
OUT
V
V
V
= 6.0V
IN
Maximum Output Current
Load Regulation
I
250
—
—
—
mA
mV
mV
= 6.0V, V
(A) ≥ 4.5V
OUTMAX
IN
IN
OUT
ΔV
40
80
= 6.0V, 1 mA ≤ I
≤ 100 mA
OUT
OUT
I/O Voltage Difference
V
—
—
120
380
300
600
I
I
= 100 mA
= 200 mA
DIF
OUT
OUT
Current Consumption
Voltage Regulation
I
—
—
1.1
0.2
3.0
0.3
µA
V
= 6.0V
IN
SS
V
(A)•100
%/V
I
= 40 mA, 6.0V ≤ V ≤ 10.0V
OUT
OUT
IN
ΔV •V
(S)
IN OUT
Input Voltage
V
—
—
—
10
—
V
IN
6
Temperature Coefficient of Output
Voltage
ΔV
(A)•10
±100
ppm/°C I
= 40 mA, -40°C ≤ T ≤ +85°C
OUT
OUT
A
V
(S)•ΔT
A
OUT
Long-Term Stability
—
0.5
—
%
T = +125°C, 1000 Hours
A
Note 1:
V
(S): Preset value of output voltage; V
(A): Actual value of output voltage; V : Definition of I/O voltage
OUT
OUT DIF
difference = {V 1 – V
(A)}; V
(A): Output voltage when I
is fixed and V = V
(S) + 1.0V; V 1: Input voltage
IN
OUT
OUT
OUT
IN
OUT
IN
when the output voltage is 98% V
(A).
OUT
TC55RP40: ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, V
(S) = 4.0V, T = +25°C (see Note 1).
OUT
A
Parameters
Sym
Min
Typ
Max
Units
Conditions
Output Voltage
—
—
—
V
I
= 40 mA
OUT
V
(A)
OUT
3.92
4.0
4.08
V
V
V
= 5.0V
IN
IN
IN
Maximum Output Current
Load Regulation
I
200
—
—
—
mA
mV
mV
= 5.0V, V
(A) ≥ 3.6V
OUTMAX
OUT
ΔV
45
90
= 5.0V, 1 mA ≤ I
≤ 100 mA
OUT
OUT
I/O Voltage Difference
V
—
—
170
400
330
630
I
I
= 100 mA
= 200 mA
DIF
OUT
OUT
Current Consumption
Voltage Regulation
I
—
—
1.0
0.2
2.9
0.3
µA
V
= 5.0V
IN
SS
V
(A)•100
%/V
I
= 40 mA, 5.0V ≤ V ≤ 10.0V
OUT
OUT
IN
ΔV •V
(S)
IN OUT
Input Voltage
V
—
—
—
10
—
V
IN
6
Temperature Coefficient of Output
Voltage
ΔV
(A)•10
±100
ppm/°C I
= 40 mA, -40°C ≤ T ≤ +85°C
OUT
OUT
A
V
(S)•ΔT
A
OUT
Long-Term Stability
—
0.5
—
%
T = +125°C, 1000 Hours
A
Note 1:
V
(S): Preset value of output voltage; V
(A): Actual value of output voltage; V : Definition of I/O voltage
OUT
OUT DIF
difference = {V 1 – V
(A)}; V
(A): Output voltage when I
is fixed and V = V
(S) + 1.0V; V 1: Input voltage
IN
OUT
OUT
OUT
IN
OUT IN
when the output voltage is 98% V
(A).
OUT
DS21435F-page 2
© 2005 Microchip Technology Inc.
TC55
TC55RP33: ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, V
(S) = 3.3V, T = +25°C (see Note 1).
OUT
A
Parameters
Sym
Min
Typ
Max
Units
Conditions
Output Voltage
—
—
—
V
I
= 40 mA
OUT
V
(A)
OUT
3.23
3.30
3.37
V
V
V
= 4.3V
IN
IN
IN
Maximum Output Current
Load Regulation
I
150
—
—
—
mA
mV
= 4.3V, V
(A) ≥ 3.0V
OUT
OUTMAX
ΔV
45
90
= 4.3V,
OUT
1 mA ≤ I
≤ 80 mA
OUT
I/O Voltage Difference
V
—
—
180
400
360
700
mV
I
I
= 80 mA
= 160 mA
DIF
OUT
OUT
Current Consumption
Voltage Regulation
I
—
—
1.0
0.2
2.9
0.3
µA
V
= 4.3V
SS
IN
V
(A)•100
%/V
I
= 40 mA,
OUT
OUT
4.3V ≤ I
≤ 10.0V
OUT
ΔV •V
(S)
IN OUT
Input Voltage
V
—
—
—
10
—
V
IN
6
Temperature Coefficient of Output
Voltage
ΔV
(A)•10
±100
ppm/°C I
= 40 mA, -40°C ≤ T ≤ +85°C
OUT A
OUT
V
(S)•ΔT
A
OUT
Long-Term Stability
—
0.5
—
%
T = +125°C, 1,000 Hours
A
Note 1:
V
(S): Preset value of output voltage; V
(A): Actual value of output voltage; V : Definition of I/O voltage
OUT
OUT DIF
difference = {V 1 – V
(A)}; V
(A): Output voltage when I
is fixed and V = V
(S) + 1.0V; V 1: Input voltage
IN
OUT
OUT
OUT
IN
OUT
IN
when the output voltage is 98% V
(A).
OUT
TC55RP30: ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, V
(S) = 3.0V, T = +25°C (see Note 1).
OUT
A
Parameters
Sym
Min
Typ
Max
Units
Conditions
Output Voltage
—
—
—
V
I
= 40 mA
OUT
V
(A)
OUT
2.94
3.0
3.06
V
V
V
= 4.0V
IN
IN
IN
Maximum Output Current
Load Regulation
I
150
—
—
—
mA
mV
mV
= 4.0V, V
(A) ≥ 2.7V
OUTMAX
OUT
ΔV
45
90
= 4.0V, 1 mA ≤ I
≤ 80 mA
OUT
OUT
I/O Voltage Difference
V
—
—
180
400
360
700
I
I
= 80 mA
= 160 mA
DIF
OUT
OUT
Current Consumption
Voltage Regulation
I
—
—
0.9
0.2
2.8
0.3
µA
V
= 4.0V
IN
SS
V
(A)•100
%/V
I
= 40 mA, 4.0V ≤ V ≤ 10.0V
OUT
OUT
IN
ΔV •V
(S)
IN OUT
Input Voltage
V
—
—
—
10
—
V
IN
6
Temperature Coefficient of Output
Voltage
ΔV
(A)•10
±100
ppm/°C I
= 40 mA, -40°C ≤ T ≤ +85°C
OUT
OUT
A
V
(S)•ΔT
A
OUT
Long-Term Stability
—
0.5
—
%
T = +125°C, 1000 Hours
A
Note 1:
V
(S): Preset value of output voltage; V
(A): Actual value of output voltage; V : Definition of I/O voltage
OUT
OUT DIF
difference = {V 1 – V
(A)}; V
(A): Output voltage when I
is fixed and V = V
(S) + 1.0V; V 1: Input voltage
IN
OUT
OUT
OUT
IN
OUT
IN
when the output voltage is 98% V
(A).
OUT
© 2005 Microchip Technology Inc.
DS21435F-page 3
TC55
TC55RP25: ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, V
(S) = 2.5V, T = +25°C (see Note 1).
OUT
A
Parameters
Sym
Min
Typ
Max
Units
Conditions
Output Voltage
—
—
—
V
I
= 40 mA
OUT
V
(A)
OUT
2.45
2.5
2.55
V
V
V
= 3.5V
IN
IN
IN
Maximum Output Current
Load Regulation
I
125
—
—
—
mA
mV
= 3.5V, V
(A) ≥ 2.25V
OUT
OUTMAX
ΔV
45
90
= 3.5V,
OUT
1 mA ≤ I
≤ 60 mA
OUT
I/O Voltage Difference
V
—
180
400
360
700
mV
I
I
= 60 mA
= 120 mA
DIF
OUT
OUT
Current Consumption
Voltage Regulation
I
—
—
1.0
0.2
2.8
0.3
µA
V
= 3.5V
SS
IN
V
(A)•100
%/V
I
= 40 mA,
OUT
OUT
3.5V ≤ I
≤ 10.0V
OUT
ΔV •V
(S)
IN OUT
Input Voltage
V
—
—
—
10
—
V
IN
6
Temperature Coefficient of Output
Voltage
ΔV
(A)•10
±100
ppm/°C I
= 40 mA, -30°C ≤ T ≤ +80°C
OUT A
OUT
V
(S)•ΔT
A
OUT
Long-Term Stability
—
0.5
—
%
T = +125°C, 1,000 Hours
A
Note 1:
V
(S): Preset value of output voltage; V
(A): Actual value of output voltage; V : Definition of I/O voltage
OUT
OUT DIF
difference = {V 1 – V
(A)}; V
(A): Output voltage when I
is fixed and V = V
(S) + 1.0V; V 1: Input voltage
IN
OUT
OUT
OUT
IN
OUT
IN
when the output voltage is 98% V
(A).
OUT
TC55RP18: ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, V
(S) = 1.8V, T = +25°C (see Note 1).
OUT
A
Parameters
Sym
Min
Typ
Max
Units
Conditions
Output Voltage
—
—
—
V
I
= 0.5 mA
OUT
V
(A)
OUT
1.764
1.8
1.836
V
V
V
= 2.8V
IN
IN
IN
Maximum Output Current
Load Regulation
I
110
—
—
—
—
mA
mV
= 2.8V, V
(A) ≥ 1.62V
OUT
OUTMAX
ΔV
30
= 2.8V,
OUT
1 mA ≤ I
≤ 30 mA
OUT
I/O Voltage Difference
Current Consumption
Voltage Regulation
V
—
—
—
—
—
—
300
3.0
mV
µA
I
= 0.5 mA
= 2.8V
DIF
OUT
I
V
SS
IN
V
(A)•100
0.25
%/V
I
= 0.5 mA,
OUT
OUT
2.8V ≤ I
≤ 10.0V
OUT
ΔV •V
(S)
IN OUT
Input Voltage
V
—
—
—
6.0
—
V
IN
6
Temperature Coefficient of Output
Voltage
ΔV
(A)•10
±100
ppm/°C I
= 0.5 mA, -30°C ≤ T ≤ +80°C
OUT A
OUT
V
(S)•ΔT
A
OUT
Long-Term Stability
—
0.5
—
%
T = +125°C, 1,000 Hours
A
Note 1:
V
(S): Preset value of output voltage; V
(A): Actual value of output voltage; V : Definition of I/O voltage
OUT
OUT DIF
difference = {V 1 – V
(A)}; V
(A): Output voltage when I
is fixed and V = V
(S) + 1.0V; V 1: Input voltage
IN
OUT
OUT
OUT
IN
OUT IN
when the output voltage is 98% V
(A).
OUT
DS21435F-page 4
© 2005 Microchip Technology Inc.
TC55
TC55RP12: ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, V
(S) = 1.2V, T = +25°C (see Note 1).
OUT
A
Parameters
Sym
Min
Typ
Max
Units
Conditions
Output Voltage
—
—
—
V
I
= 0.5 mA
OUT
V
(A)
OUT
1.176
1.200
1.224
V
V
V
= 2.2V
IN
IN
IN
Maximum Output Current
Load Regulation
I
50
—
—
—
—
mA
mV
= 2.2V, V
(A) ≥ 1.08V
OUT
OUTMAX
ΔV
30
= 2.2V,
OUT
1 mA ≤ I
≤ 30 mA
OUT
I/O Voltage Difference
Current Consumption
Voltage Regulation
V
—
—
—
—
—
—
300
3.0
mV
µA
I
= 0.5 mA
= 2.2V
DIF
OUT
I
V
SS
IN
V
(A)•100
0.25
%/V
I
= 0.5 ,
OUT
OUT
2.2V ≤ I
≤ 10.0V
OUT
ΔV •V
(S)
IN OUT
Input Voltage
V
—
—
—
6.0
—
V
IN
6
Temperature Coefficient of Output
Voltage
ΔV
(A)•10
±100
ppm/°C I
= 0.5 mA, -30°C ≤ T ≤ +80°C
OUT A
OUT
V
(S)•ΔT
A
OUT
Long-Term Stability
—
0.5
—
%
T = +125°C, 1,000 Hours
A
Note 1:
V
(S): Preset value of output voltage; V
(A): Actual value of output voltage; V : Definition of I/O voltage
OUT
OUT DIF
difference = {V 1 – V
(A)}; V
(A): Output voltage when I
is fixed and V = V
(S) + 1.0V; V 1: Input voltage
IN
OUT
OUT
OUT
IN
OUT
IN
when the output voltage is 98% V
(A).
OUT
TEMPERATURE CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, V
(S) = 5.0V, T = +25°C.
A
OUT
Parameters
Temperature Ranges
Sym
Min
Typ
Max
Units
Conditions
Specified Temperature Range (E)
Storage Temperature Range
T
-40
-65
—
—
+85
ºC
ºC
A
T
+150
A
Package Thermal Resistances
Thermal Resistance, 3L-SOT-23A
Thermal Resistance, 3L-SOT-89
θ
θ
—
—
359
110
—
—
ºC/W
JA
JA
ºC/W When mounted on 1 square
inch of copper
Thermal Resistance, 3L-TO-92
θ
—
131.9
—
ºC/W
JA
© 2005 Microchip Technology Inc.
DS21435F-page 5
TC55
2.0
TYPICAL PERFORMANCE CURVES
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Notes: Unless otherwise specified, VOUT(S) = 3.0V, 5.0V, TA = +25°C, CIN = 1 µF Tantalum, COUT = 1 µF Tantalum.
V
= 4.0V
2.0
1.8
1.6
IN
3.1
3.0
2.9
1.4
1.2
1.0
-30°C
25°C
80°C
0.8
0.6
0.4
0.2
0.0
-0.2
25°C
2.8
2.7
80°C
-30°C
0
20 40 60 80 100 120 140 160
OUTPUT CURRENT I (mA)
0
20 40 60 80 100 120 140 160
OUTPUT CURRENT I (mA)
OUT
OUT
FIGURE 2-1:
Output Voltage vs. Output
FIGURE 2-4:
Dropout Voltage vs. Output
Current (TC55RP3002).
Current (TC55RP3002).
T
= 25°C
V
= 4.0V
OPR
IN
3.2
3.0
3.10
3.08
3.06
I
= 1 mA
OUT
40 mA
3.04
3.02
2.8
2.6
2.4
2.2
I
= 10 mA
OUT
3.00
2.98
2.96
2.94
40 mA
10 mA
2.92
2.90
-40 -20
2.5
3.0
INPUT VOLTAGE V (V)
3.5
0
20 40
60
80 100
OPERATING TEMPERATURE (°C)
IN
FIGURE 2-2:
Output Voltage vs. Input
FIGURE 2-5:
Output Voltage vs.
Voltage (TC55RP3002).
Operating Temperature (TC55RP3002).
T
= 25°C
T
OPR
= 25°C
OPR
3.05
3.04
1.5
1.4
1.3
1.2
3.03
3.02
I
= 1 mA
OUT
3.01
3.00
2.99
2.98
2.97
2.96
2.95
1.1
1.0
0.9
0.8
0.7
0.6
0.5
3
4
10
5
6
7
8
9
3
4
5
6
7
8
9
10
INPUT VOLTAGE V (V)
INPUT VOLTAGE V (V)
IN
IN
FIGURE 2-3:
Output Voltage vs. Input
FIGURE 2-6:
Supply Current vs. Input
Voltage (TC55RP3002).
Voltage (TC55RP3002).
DS21435F-page 6
© 2005 Microchip Technology Inc.
TC55
Note: Unless otherwise indicated, VOUT(S) = 3.0V, 5.0V, TA = +25°C, CIN = 1 µF Tantalum, COUT = 1 µF Tantalum.
T = 25°C
OPR
V
= 4.0V
IN
5.2
5.0
1.5
1.4
1.8
1.2
40 mA
I
= 1 mA
OUT
4.8
4.6
4.4
4.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
10 mA
4.5
5.0
INPUT VOLTAGE V (V)
5.5
-40 -20
0
20 40
60
80 100
OPERATING TEMPERATURE (°C)
IN
FIGURE 2-7:
Supply Current vs.
FIGURE 2-10:
Output Voltage vs. Input
Operating Temperature (TC55RP3002).
Voltage (TC55RP5002).
T
= 25°C
OPR
5.05
5.04
5.03
5
4
3
200
160
5.02
5.01
5.00
4.99
4.98
4.97
4.98
4.95
I
= 1 mA
OUT
Output Voltage
120
80
40
2
Output Current
1
0
40 mA
1 mA
0
5
6
7
9
8
10
TIME (2 msec/div)
INPUT VOLTAGE V (V)
IN
FIGURE 2-8:
Load Transient Response
FIGURE 2-11:
Output Voltage vs. Input
(TC55RP3002).
Voltage (TC55RP5002).
V
= 6.0V
IN
2.0
1.8
1.6
5.1
5.0
4.9
4.8
1.4
-30°C
25°C
1.2
1.0
0.8
0.6
80°C
25°C
80°C
0.4
0.2
-30°C
0.0
-0.2
4.7
0
0
40
80
120
160
(mA)
200
40
80
120
160
200
OUTPUT CURRENT I
OUT
OUTPUT CURRENT I
OUT
(mA)
FIGURE 2-9:
Output Voltage vs. Output
FIGURE 2-12:
Dropout Voltage vs. Output
Current (TC55RP5002).
Current (TC55RP5002).
© 2005 Microchip Technology Inc.
DS21435F-page 7
TC55
Note: Unless otherwise indicated, VOUT(S) = 3.0V, 5.0V, TA = +25°C, CIN = 1 µF Tantalum, COUT = 1 µF Tantalum.
I
= 1 mA
OUT
Input
V
= 6.0V
IN
8.0
7.5
5.10
5.08
5.06
Voltage
7.0
5.04
6.5
6.0
5.5
5.0
5.02
5.00
4.98
4.96
4.94
I
= 10 mA
OUT
40 mA
Output
Voltage
5.0
4.92
4.90
-40 -20
4.5
4.0
0
20 40
60
80 100
-1
0
1
2
3
OPERATING TEMPERATURE (°C)
TIME (msec)
FIGURE 2-13:
Output Voltage vs.
FIGURE 2-16:
Input Transient Response,
Operating Temperature (TC55RP5002).
1 mA (TC55RP5002).
T
= 25°C
OPR
I
= 10 mA
Input
Voltage
OUT
2.0
1.9
1.8
1.7
8.0
7.5
7.0
1.6
1.4
1.3
1.2
6.5
6.0
5.5
5.0
Output
Voltage
1.1
1.0
0.5
4.5
4.0
5
7
8
9
10
6
-1
0
1
2
3
INPUT VOLTAGE V (V)
IN
TIME (msec)
FIGURE 2-14:
Supply Current vs. Input
FIGURE 2-17:
Input Transient Response,
Voltage (TC55RP5002).
10 mA (TC55RP5002).
V
= 6.0V
IN
2.0
1.9
7
6
200
160
1.8
1.7
Output Voltage
5
4
120
1.6
1.5
1.4
1.3
1.2
1.1
1.0
80
40
Output Current
3
2
40 mA
1 mA
0
-40 -20
0
20 40
60
80 100
TIME (2 msec/div)
OPERATING TEMPERATURE (°C)
FIGURE 2-15:
Supply Current vs.
FIGURE 2-18:
Load Transient Response
Operating Temperature (TC55RP5002).
(TC55RP5002).
DS21435F-page 8
© 2005 Microchip Technology Inc.
TC55
3.0
PIN DESCRIPTIONS
4.0
DETAILED DESCRIPTION
The descriptions of the pins are listed in Table 3-1.
The TC55 is a low quiescent current, precision, fixed-
output voltage LDO. Unlike bipolar regulators, the
TC55 supply current does not increase proportionally
with load current.
TABLE 3-1:
PIN FUNCTION TABLE
Description
Ground Terminal
Pin No. Symbol
4.1
Output Capacitor
1
GND
VOUT
VIN
2
3
Regulated Voltage Output
Unregulated Supply Input
A minimum of 1 µF output capacitor is required. The
output capacitor should have an effective series resis-
tance (esr) greater than 0.1Ω and less than 5Ω, plus a
resonant frequency above 1 MHz. Larger output
capacitors can be used to improve supply noise rejec-
tion and transient response. Care should be taken
when increasing COUT to ensure that the input imped-
ance is not high enough to cause high input impedance
oscillation.
3.1
Ground Terminal (GND)
Regulator ground. Tie GND to the negative side of the
output and the negative side of the input capacitor.
Only the LDO bias current (1 µA typical) flows out of
this pin, there is no high current. The LDO output regu-
lation is referenced to this pin. Minimize voltage drops
between this pin and the minus side of the load.
4.2
Input Capacitor
A 1 µF input capacitor is recommended for most
applications when the input impedance is on the order
of 10Ω. Larger input capacitance may be required for
stability when operating off of a battery input, or if there
is a large distance from the input source to the LDO.
When large values of output capacitance are used, the
input capacitance should be increased to prevent high
source impedance oscillations.
3.2
Regulated Voltage Output (V
)
OUT
Connect VOUT to the positive side of the load and the
positive terminal of the output capacitor. The positive
side of the output capacitor should be physically
located as close to the LDO VOUT pin as is practical.
The current flowing out of this pin is equal to the DC
load current.
3.3
Unregulated Supply Input (V )
IN
Connect the input supply voltage and the positive side
of the input capacitor to VIN. The input capacitor should
be physically located as close as is practical to VIN. The
current flow into this pin is equal to the DC load current,
plus the LDO bias current (1 µA typical.)
© 2005 Microchip Technology Inc.
DS21435F-page 9
TC55
EQUATION
PD = (VINMAX – VOUTMIN) x IOUTMAX
5.0
5.1
THERMAL CONSIDERATIONS
Power Dissipation
Given:
VIN
The amount of power dissipated internal to the low
dropout linear regulator is the sum of the power dissi-
pation within the linear pass device (P-Channel MOS-
FET) and the quiescent current required to bias the
internal reference and error amplifier. The internal lin-
ear pass device power dissipation is calculated by mul-
tiplying the voltage across the linear device by the
current through the device.
= 3.3V to 4.1V
VOUT = 3.0 V ± 2%
IOUT = 1 mA to 100 mA
TAMAX = 55°C
PMAX = (4.1V – (3.0V x 0.98)) x 100 mA
PMAX = 116.0 milliwatts
EQUATION
To determine the junction temperature of the device, the
thermal resistance from junction-to-ambient must be
known. The 3-pin SOT-23 thermal resistance from junc-
tion-to-air (RθJA) is estimated to be approximately
359°C/W. The SOT-89 RθJA is estimated to be approxi-
mately 110°C/W when mounted on 1 square inch of
copper. The TO-92 RθJA is estimated to be 131.9°C/W.
The RθJA will vary with physical layout, airflow and other
application-specific conditions.
PD (Pass Device) = (VIN – VOUT) x IOUT
The internal power dissipation, as a result of the bias
current for the LDO internal reference and error
amplifier, is calculated by multiplying the ground or
quiescent current by the input voltage.
EQUATION
The device junction temperature is determined by
calculating the junction temperature rise above
ambient, then adding the rise to the ambient
temperature.
PD (Bias) = VIN x IGND
The total internal power dissipation is the sum of PD
(Pass Device) and PD (Bias).
EQUATION
EQUATION
Junction Temperature
PTOTAL = PD (Pass Device) + PD (Bias)
SOT-23 Example:
TJ = PDMAX x RθJA + TA
TJ = 116.0 milliwatts x 359°C/W + 55°C
For the TC55, the internal quiescent bias current is so
low (1 µA typical) that the PD (Bias) term of the power
dissipation equation can be ignored. The maximum
power dissipation can be estimated by using the
maximum input voltage and the minimum output
voltage to obtain a maximum voltage differential
between input and output. The next step would be to
multiply the maximum voltage differential by the
maximum output current.
TJ = 96.6°C
SOT-89 Example:
TJ = 116.0 milliwatts x 110°C/W + 55°C
TJ = 67.8°C
TO-92 Example:
TJ = 116.0 milliwatts x 131.9°C/W + 55°C
TJ = 70.3°C
DS21435F-page 10
© 2005 Microchip Technology Inc.
TC55
6.0
6.1
PACKAGING INFORMATION
Package Marking Information
3-Pin TO-92
3-Pin SOT-23A
3-Pin SOT-89
2
1
4
3
1 2 3 4
5 6 7 8
9 10 1112
1
2
3
4
1
represents first voltage digit
2V, 3V, 4V, 5V, 6V
4
3 &
1 , 2 ,
= 55RP (fixed)
3
5
Ex: 3.xV =
represents first voltage digit (2-6)
2 represents first decimal place voltage (x.0 - x.9)
6 represents first voltage decimal (0-9)
3
E
Ex: 3.4V =
7 represents extra feature code: fixed: 0
Symbol
Voltage
Symbol
Voltage
A
B
C
D
E
x.0
x.1
x.2
x.3
x.4
F
H
K
L
x.5
x.6
x.7
x.8
x.9
8 represents regulation accuracy
1 = ±1.0% (custom), 2 = ±2.0% (standard)
9 , 10, 11 & 12
represents assembly lot number
M
3
4
represents polarity
0 = Positive (fixed)
represents assembly lot number
© 2005 Microchip Technology Inc.
DS21435F-page 11
TC55
3-Lead Plastic Small Outline Transistor (CB) (SOT23)
E
E1
2
B
p1
D
n
p
1
α
c
A
A2
A1
φ
β
L
Units
INCHES*
NOM
MILLIMETERS
Dimension Limits
MIN
MAX
MIN
NOM
3
MAX
n
p
Number of Pins
3
Pitch
.038
.076
.040
.037
.002
.093
.051
.115
.018
5
0.96
1.92
p1
Outside lead pitch (basic)
Overall Height
A
A2
A1
E
.035
.044
0.89
0.88
1.01
0.95
0.06
2.37
1.30
2.92
0.45
5
1.12
1.02
0.10
2.64
1.40
3.04
0.55
10
Molded Package Thickness
.035
.000
.083
.047
.110
.014
0
.040
.004
.104
.055
.120
.022
10
Standoff
§
0.01
2.10
1.20
2.80
0.35
0
Overall Width
Molded Package Width
Overall Length
E1
D
Foot Length
L
φ
Foot Angle
c
Lead Thickness
Lead Width
.004
.015
0
.006
.017
5
.007
.020
10
0.09
0.37
0
0.14
0.44
5
0.18
0.51
10
B
α
β
Mold Draft Angle Top
Mold Draft Angle Bottom
0
5
10
0
5
10
* Controlling Parameter
§ Significant Characteristic
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed
.010” (0.254mm) per side.
JEDEC Equivalent: TO-236
Drawing No. C04-104
DS21435F-page 12
© 2005 Microchip Technology Inc.
TC55
3-Lead Plastic Small Outline Transistor (MB) (SOT89)
H
E
B1
3
B
D1
D
p1
2
1
p
B1
L
E1
A
C
Units
INCHES
MILLIMETERS*
MIN MAX
1.50 BSC
Dimension Limits
p
MIN
MAX
Pitch
.059 BSC
.118 BSC
.055
p1
A
Outside lead pitch (basic)
Overall Height
3.00 BSC
1.40
.063
.167
.102
.090
.181
.072
.047
.017
.022
.019
1.60
4.25
2.60
2.29
4.60
1.83
1.20
0.44
0.56
0.48
Overall Width
H
.155
3.94
Molded Package Width at Base
Molded Package Width at Top
Overall Length
E
E1
D
.090
2.29
.084
2.13
.173
4.40
Tab Length
D1
L
.064
1.62
Foot Length
.035
0.89
c
Lead Thickness
.014
0.35
Lead 2 Width
B
.017
0.44
Leads 1 & 3 Width
B1
.014
0.36
*Controlling Parameter
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not
exceed .005" (0.127mm) per side.
JEDEC Equivalent: TO-243
Drawing No. C04-29
© 2005 Microchip Technology Inc.
DS21435F-page 13
TC55
3-Lead Plastic Transistor Outline (ZB) (TO-92)
E1
D
n
1
L
1
2
3
α
B
p
c
A
R
β
Units
INCHES*
NOM
MILLIMETERS
Dimension Limits
MIN
MAX
MIN
NOM
3
MAX
n
p
Number of Pins
3
Pitch
.050
.143
.186
.183
.090
.555
.017
.019
5
1.27
Bottom to Package Flat
Overall Width
A
E1
D
R
L
.130
.155
3.30
4.45
3.62
4.71
4.64
2.29
14.10
0.43
0.48
5
3.94
.175
.170
.085
.500
.014
.016
4
.195
.195
.095
.610
.020
.022
6
4.95
4.95
2.41
15.49
0.51
0.56
6
Overall Length
4.32
2.16
12.70
0.36
0.41
4
Molded Package Radius
Tip to Seating Plane
Lead Thickness
Lead Width
c
B
α
Mold Draft Angle Top
Mold Draft Angle Bottom
β
2
3
4
2
3
4
*Controlling Parameter
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed
.010” (0.254mm) per side.
JEDEC Equivalent: TO-92
Drawing No. C04-101
DS21435F-page 14
© 2005 Microchip Technology Inc.
TC55
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
Examples:
PART NO.
Device
XX
X
X
X
XX
XX
a)
b)
c)
d)
e)
f)
TC55RP1802ECB713: 1.8V LDO Positive
Voltage Regulator, 2% Tolerance
SOT23-A-3 package.
Output Feature Tolerance Temp. Package Taping
Voltage Direction
Code
TC55RP2502EMB713: 1.8V LDO Positive
Voltage Regulator, 2% Tolerance.
SOT89-3 package.
Device:
TC55: 1 µA Low Dropout Positive Voltage Regulator
TC55RP2502ECB713: 2.5V LDO Positive
Voltage Regulator, 2% Tolerance.
SOT23-A-3 package.
Output Voltage:
12
18
25
30
33
50
=
=
=
=
=
=
1.2V "Standard"
1.8V "Standard"
2.5V "Standard"
3.0V "Standard"
3.3V "Standard"
5.0V "Standard"
TC55RP3002ECB713: 3.0V LDO Positive
Voltage Regulator, 2% Tolerance.
SOT23-A-3 package.
TC55RP3002EMB713: 3.0V LDO Positive
Voltage Regulator, 2% Tolerance.
SOT89-3 package.
Extra Feature Code:
Tolerance:
0
=
Fixed
TC55RP3302ECB713: 3.3V LDO Positive
Voltage Regulator, 2% Tolerance.
SOT23-A-3 package.
1
2
=
=
1.0% (Custom)
2.0% (Standard)
g)
h)
i)
TC55RP3302EMB713: 3.3V LDO Positive
Voltage Regulator, 2% Tolerance.
SOT89-3 package.
Temperature:
E
=
-40°C to +85°C
Package Type:
CB
MB
ZB
=
=
=
3-Pin SOT-23A (equivalent to EIAJ SC-59)
3-Pin SOT-89
3-Pin TO-92
TC55RP5002ECB713: 5.0V LDO Positive
Voltage Regulator, 2% Tolerance.
SOT23-A-3 package.
TC55RP5002EMB713: 5.0V LDO Positive
Voltage Regulator, 2% Tolerance.
SOT89-3 package.
Taping Direction:
TR
=
Standard
713 = Standard
Sales and Support
Data Sheets
Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and
recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:
1. Your local Microchip sales office
2. The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277
3. The Microchip Worldwide Site (www.microchip.com)
Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using.
Customer Notification System
Register on our web site (www.microchip.com/cn) to receive the most current information on our products.
© 2005 Microchip Technology Inc.
DS21435F-page 15
TC55
NOTES:
DS21435F-page 16
© 2005 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR WAR-
RANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED,
WRITTEN OR ORAL, STATUTORY OR OTHERWISE,
RELATED TO THE INFORMATION, INCLUDING BUT NOT
LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE,
MERCHANTABILITY OR FITNESS FOR PURPOSE.
Microchip disclaims all liability arising from this information and
its use. Use of Microchip’s products as critical components in
life support systems is not authorized except with express
written approval by Microchip. No licenses are conveyed,
implicitly or otherwise, under any Microchip intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART,
PRO MATE, PowerSmart, rfPIC, and SmartShunt are
registered trademarks of Microchip Technology Incorporated
in the U.S.A. and other countries.
AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB,
PICMASTER, SEEVAL, SmartSensor and The Embedded
Control Solutions Company are registered trademarks of
Microchip Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, dsPICDEM,
dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR,
FanSense, FlexROM, fuzzyLAB, In-Circuit Serial
Programming, ICSP, ICEPIC, Linear Active Thermistor,
MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM,
PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo,
PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode,
Smart Serial, SmartTel, Total Endurance and WiperLock are
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2005, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 quality system certification for
its worldwide headquarters, design and wafer fabrication facilities in
Chandler and Tempe, Arizona and Mountain View, California in
October 2003. The Company’s quality system processes and
procedures are for its PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
© 2005 Microchip Technology Inc.
DS21435F-page 17
WORLDWIDE SALES AND SERVICE
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
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Tel: 61-2-9868-6733
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Tel: 91-80-2229-0061
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Tel: 43-7242-2244-399
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Technical Support:
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Web Address:
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Canada
Tel: 905-673-0699
Fax: 905-673-6509
10/31/05
DS21435F-page 18
© 2005 Microchip Technology Inc.
相关型号：
TC55RP1201EMB713
1.2 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PSSO3, PLASTIC, TO-243, SOT-89, 3 PIN
MICROCHIP
TC55RP1201EMBTR
1.2 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PSSO3, PLASTIC, TO-243, SOT-89, 3 PIN
MICROCHIP
TC55RP1201EZB713
1.2 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PBCY3, PLASTIC, TO-92, 3 PIN
MICROCHIP
TC55RP1201EZBTR
1.2 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PBCY3, PLASTIC, TO-92, 3 PIN
MICROCHIP
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