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PDF TC1070 Data sheet ( Hoja de datos )
| Número de pieza | TC1070 | |
| Descripción | CMOS LDOs | |
| Fabricantes | Microchip Technology | |
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TC1070/TC1071/TC1187
50 mA, 100 mA and 150 mA Adjustable CMOS LDOs with Shutdown
Features:
• 50 µA Ground Current for Longer Battery Life
• Adjustable Output Voltage
• Very Low Dropout Voltage
• Choice of 50 mA (TC1070), 100 mA (TC1071)
and 150 mA (TC1187) Output
• Power-Saving Shutdown mode
• Overcurrent and Overtemperature Protection
• Space-Saving 5-Pin SOT-23 Package
• Pin Compatible with Bipolar Regulators
Applications:
• Battery Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulators for SMPS
• Pagers
Typical Application
VIN 1 VIN
VOUT 5
TC1070
TC1071
2
TC1187
GND
C1 +
1 µF
VOUT
R1
3
SHDN
4
ADJ
R2
Shutdown Control
(from Power Control Logic)
VOUT = VREF RR-----12- + 1
Description:
The TC1070, TC1071 and TC1187 devices are
adjustable LDOs designed to supersede a variety of
older (bipolar) voltage regulators. Total supply current
is typically 50 µA at full load (20 to 60 times lower than
in bipolar regulators).
The devices’ key features include ultra low-noise
operation, very low dropout voltage – typically 85 mV
(TC1070), 180 mV (TC1071) and 270 mV (TC1187) at
full load and fast response to step changes in load.
Supply current is reduced to 0.5 µA (maximum) when
the shutdown input is low. The devices incorporate both
overtemperature and overcurrent protection. Output
voltage is programmed with a simple resistor divider
from VOUT to ADJ to GND.
The TC1070, TC1071 and TC1187 devices are stable
with an output capacitor of only 1 µF and have a
maximum output current of 50 mA, 100 mA and
150 mA, respectively. For higher output versions
please see the TC1174 (IOUT = 300 mA) data sheet
(DS21363).
Package Type
5-Pin SOT-23
VOUT
ADJ
54
TC1070
TC1071
TC1187
1 23
VIN GND SHDN
2010 Microchip Technology Inc.
DS21353E-page 1
1 page  
TC1070/TC1071/TC1187
Note: Unless otherwise specified, all parts are measured at temperature = +25°C.
Ground Current vs. VIN (VOUT = 3.3V)
80
70 ILOAD = 150mA
60
50
40
30
20
10 CIN = 1μF
COUT = 1μF
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5
VIN (V)
3.5
ILOAD = 0
3
VOUT vs. VIN (VOUT = 3.3V)
2.5
2
1.5
1
0.5 CIN = 1μF
COUT = 1μF
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
VIN (V)
3.5 VOUT vs. VIN (VOUT = 3.3V)
ILOAD = 100mA
3.0
2.5
2.0
1.5
1.0
0.5 CIN = 1μF
COUT = 1μF
0.0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
VIN (V)
3.320
3.315
Output Voltage vs. Temperature (VOUT = 3.3V)
ILOAD = 10mA
3.310
3.305
3.300
3.295
3.290
3.285
3.280
CIN = 1μF
COUT = 1μF
VIN = 4.3V
3.275
-40 -20 -10
0
20 40
TEMPERATURE (°C)
85 125
3.290
3.288
3.286
3.284
3.282
3.280
3.278
3.276
3.274
Output Voltage vs. Temperature (VOUT = 3.3V)
ILOAD = 150mA
CIN = 1μF
COUT = 1μF
VIN = 4.3V
-40 -20 -10 0 20 40
TEMPERATURE (°C)
85 125
2010 Microchip Technology Inc.
DS21353E-page 5
5 Page 
TC1070/TC1071/TC1187
6.0 PACKAGING INFORMATION
6.1 Package Marking Information
5-Lead SOT-23-5
XXNN
(V)
Adjustable
TC1070
Code
BANN
TC1071
Code
BBNN
TC1187
Code
R9NN
Example:
XXNN
Legend:
XX...X
Y
YY
WW
NNN
e3
*
Customer-specific information
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Pb-free JEDEC designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator ( e3 )
can be found on the outer packaging for this package.
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
6.2 Taping Form
Component Taping Orientation for 5-Pin SOT-23 (EIAJ SC-74A) Devices
Device
Marking
User Direction of Feed
W
PIN 1
P
Standard Reel Component Orientation
for TR Suffix Device
(Mark Right Side Up)
Carrier Tape, Number of Components Per Reel and Reel Size:
Package
5-Pin SOT-23
Carrier Width (W)
8 mm
Pitch (P)
4 mm
Part Per Full Reel
3000
Reel Size
7 in.
2010 Microchip Technology Inc.
DS21353E-page 11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet TC1070.PDF ] | |
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