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PDF TC551801 Data sheet ( Hoja de datos )
| Número de pieza | TC551801 | |
| Descripción | Low Dropout Positive Voltage Regulator | |
| Fabricantes | Microchip Technology | |
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Obsolete Device
TC55
1 µA Low Dropout Positive Voltage Regulator
Features
• Low Dropout Voltage: 120 mV (typ) at 100 mA,
380 mV (typ) at 200 mA
• High Output Current: 250 mA (VOUT = 5.0V)
• High Accuracy Output Voltage: ±2% (max)
www.DataSheet4U.com (±1% Semi-Custom Version)
• 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
• Short-Circuit Protection
• Standard Output Voltage Options: 1.2V, 1.8V,
2.5V, 3.0V, 3.3V, 5.0V
Applications
• Battery-Powered Devices
• Cameras and Portable Video Equipment
• Pagers and Cellular Phones
• Solar Powered Instruments
• Consumer Products
Package Types
3-Pin SOT-23A
VIN
3
3-Pin SOT-89
VIN
TC55
1
GND
2
VOUT
TC55
1 23
GND VIN VOUT
3-Pin TO-92
123
General Description
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.
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.
The circuit also incorporates short-circuit protection to
ensure maximum reliability.
Functional Block Diagram
VIN
VOUT
Short-Circuit
Protection
Voltage
Reference
GND
Bottom
View
GND VIN VOUT
Note: 3-Pin SOT-23A is equivalent to the
EIAJ SC-59.
© 2005 Microchip Technology Inc.
DS21435F-page 1
1 page  
TC55
TC55RP12: ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, VOUT(S) = 1.2V, TA = +25°C (see Note 1).
Parameters
Sym
Min Typ Max Units
Conditions
Output Voltage
VOUT(A)
———
1.176 1.200 1.224
V IOUT = 0.5 mA
VIN = 2.2V
Maximum Output Current
IOUTMAX
50 — — mA VIN = 2.2V, VOUT(A) ≥ 1.08V
Load Regulation
ΔVOUT
— — 30 mV VIN = 2.2V,
1 mA ≤ IOUT ≤ 30 mA
I/O Voltage Difference
VDIF
— — 300 mV IOUT = 0.5 mA
Current Consumption
ISS — — 3.0 µA VIN = 2.2V
Voltage Regulation
www.DataSheet4U.comInput Voltage
Temperature Coefficient of Output
Voltage
VOUT(A)•100
ΔVIN•VOUT(S)
VIN
ΔVOUT(A)•106
VOUT(S)•ΔTA
—
—
—
—
—
±100
0.25
6.0
—
%/V IOUT = 0.5 ,
2.2V ≤ IOUT ≤ 10.0V
V
ppm/°C IOUT = 0.5 mA, -30°C ≤ TA ≤ +80°C
Long-Term Stability
— 0.5 — % TA = +125°C, 1,000 Hours
Note 1:
VOUT(S): Preset value of output voltage; VOUT(A): Actual value of output voltage; VDIF: Definition of I/O voltage
difference = {VIN1 – VOUT(A)}; VOUT(A): Output voltage when IOUT is fixed and VIN = VOUT(S) + 1.0V; VIN1: Input voltage
when the output voltage is 98% VOUT(A).
TEMPERATURE CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, VOUT(S) = 5.0V, TA = +25°C.
Parameters
Sym Min Typ Max
Temperature Ranges
Specified Temperature Range (E)
Storage Temperature Range
Package Thermal Resistances
Thermal Resistance, 3L-SOT-23A
Thermal Resistance, 3L-SOT-89
TA -40 — +85
TA -65 — +150
θJA — 359 —
θJA — 110 —
Thermal Resistance, 3L-TO-92
θJA — 131.9 —
Units
Conditions
ºC
ºC
ºC/W
ºC/W
ºC/W
When mounted on 1 square
inch of copper
© 2005 Microchip Technology Inc.
DS21435F-page 5
5 Page 
6.0 PACKAGING INFORMATION
6.1 Package Marking Information
3-Pin SOT-23A
3-Pin SOT-89
1234
2
1
4
3
www.DataSheet4U.com 1 represents first voltage digit
2V, 3V, 4V, 5V, 6V
Ex: 3.xV = 3
2 represents first decimal place voltage (x.0 - x.9)
Ex: 3.4V = 3 E
Symbol
A
B
C
D
E
Voltage
x.0
x.1
x.2
x.3
x.4
Symbol
F
H
K
L
M
Voltage
x.5
x.6
x.7
x.8
x.9
3 represents polarity
0 = Positive (fixed)
4 represents assembly lot number
TC55
3-Pin TO-92
1234
5678
9 10 11 12
1 , 2 , 3 & 4 = 55RP (fixed)
5 represents first voltage digit (2-6)
6 represents first voltage decimal (0-9)
7 represents extra feature code: fixed: 0
8 represents regulation accuracy
1 = ±1.0% (custom), 2 = ±2.0% (standard)
9 , 10, 11 & 12 represents assembly lot number
© 2005 Microchip Technology Inc.
DS21435F-page 11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet TC551801.PDF ] | |
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