TC105503ECTTR Microchip Technology, TC105503ECTTR Datasheet

IC PFM/PWM CONTRLLER 5V SOT23A-5

TC105503ECTTR

Manufacturer Part Number
TC105503ECTTR
Description
IC PFM/PWM CONTRLLER 5V SOT23A-5
Manufacturer
Microchip Technology
Type
Step-Down (Buck)r
Datasheets

Specifications of TC105503ECTTR

Internal Switch(s)
No
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
5V
Current - Output
1A
Frequency - Switching
300kHz
Voltage - Input
0.9 ~ 2.2 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Power - Output
150mW
Output Current
100 mA
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TC105503ECTTR
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Features
• Low Ground Current for Longer Battery Life
• Low Dropout Voltage
• Choice of 50 mA (TC1054), 100 mA (TC1055)
• High Output Voltage Accuracy
• Standard or Custom Output Voltages
• Power-Saving Shutdown Mode
• ERROR Output Can Be Used as a Low Battery
• Over-Current and Over-Temperature Protection
• 5-Pin SOT-23A Package
• Pin Compatible Upgrades for Bipolar Regulators
Applications
• Battery Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulators for SMPS
• Pagers
Typical Application
M
(from Power Control Logic)
and 150 mA (TC1186) Output
Detector or Microcontroller Reset Generator
2003 Microchip Technology Inc.
50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown
V
IN
Shutdown Control
1
2
3
V
GND
SHDN
IN
TC1054
TC1055
TC1186
ERROR
V
OUT
5
4
TC1054/TC1055/TC1186
1 M
and ERROR Output
+
1 µF
V
ERROR
OUT
Package Type
General Description
The TC1054, TC1055 and TC1186 are high accuracy
(typically ±0.5%) CMOS upgrades for older (bipolar)
low dropout regulators. Designed specifically for
battery-operated
construction minimizes ground current, extending bat-
tery life. Total supply current is typically 50 µA at full
load (20 to 60 times lower than in bipolar regulators).
The devices’ key features include low noise operation,
low dropout voltage – typically 85 mV (TC1054),
180 mV (TC1055) and 270 mV (TC1186) at full load —
and fast response to step changes in load. An error out-
put (ERROR) is asserted when the devices are out-of-
regulation (due to a low input voltage or excessive out-
put current). ERROR can be used as a low battery
warning or as a processor RESET signal (with the addi-
tion of an external RC network). Supply current is
reduced to 0.5 µA (max), with both V
disabled when the shutdown input is low. The devices
incorporate both over-temperature and over-current
protection.
The TC1054, TC1055 and TC1186 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 current regulators,
please refer to the TC1173 (I
(DS21632).
NOTE: 5-Pin SOT-23A is equivalent to the EIAJ (SC-74A)
V
V
OUT
1
5-Pin SOT-23A
5
IN
systems,
TC1054
TC1055
TC1186
GND
2
OUT
the
ERROR
SHDN
= 300 mA) data sheet
4
3
devices’
OUT
DS21350C-page 1
and ERROR
CMOS

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TC105503ECTTR Summary of contents

Page 1

... SHDN ERROR Shutdown Control (from Power Control Logic) 2003 Microchip Technology Inc. and ERROR Output Package Type NOTE: 5-Pin SOT-23A is equivalent to the EIAJ (SC-74A) General Description The TC1054, TC1055 and TC1186 are high accuracy (typically ±0.5%) CMOS upgrades for older (bipolar) low dropout regulators ...

Page 2

... Note 1 ppm/°C Note 1V (Note 0 OUT MAX OUT MAX 100 µ 100 150 mA (Note 4) L µA SHDN = µA (Note µA SHDN = kHz OUT V/W Notes 5, 6 °C ° for msec MAX 2.7V for OUT MAX 2003 Microchip Technology Inc. ...

Page 3

... Please see Section 5.0, “Thermal Considerations”, for more details. 7: Hysteresis voltage is referenced The minimum V has to justify the conditions Apply for junction temperatures of -40C to +85C. 2003 Microchip Technology Inc. TC1054/TC1055/TC1186 = 100 µ OUT ...

Page 4

... F OUT 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 FIGURE 2- 100 mA). LOAD , T = +25° OUT - 125 TEMPERATURE ( C) Dropout Voltage vs mA). LOAD = 150 OUT - 125 TEMPERATURE ( C) Dropout Voltage vs. = 150 mA). LOAD I = 100 mA LOAD OUT V (V) IN Ground Current vs 2003 Microchip Technology Inc. ...

Page 5

... OUT 3.276 V = 4.3V IN 3.274 -40 -20 - TEMPERATURE ( C) FIGURE 2-9: V vs. V OUT 150 mA). LOAD 2003 Microchip Technology Inc. TC1054/TC1055/TC1186 = 100 µ 3.3 µF, SHDN > V OUT L L 3.5 I LOAD 3 2 OUT 0 0 FIGURE 2-10 mA). LOAD 3 ...

Page 6

... Fall Time = 184 µs FIGURE 2-18: LDO +25° LOAD OUT 0.01K 0.1K 1K 10K 100K 1000K FREQUENCY (Hz) Output Noise vs. Frequency OUT Stable Region LOAD CURRENT (mA) Stability Region vs. Load = 1 µ µF, IN OUT = 4.3V, Temp = +25°C, IN Measure Rise Time of 3.3V 2003 Microchip Technology Inc. ...

Page 7

... The regulator remains off until die temperature drops to approximately 150°C. FIGURE 2-20: Thermal Shutdown Response of 5.0V LDO. 2003 Microchip Technology Inc. TC1054/TC1055/TC1186 = 100 µ 3.3 µF, SHDN > V OUT ...

Page 8

... ERROR goes low when V approximately -5%. 3.5 Regulated Voltage Output (V Connect the output load to V nect the positive side of the LDO output capacitor close as possible to the V pin GND. OUT is out-of-tolerance by OUT ) OUT of the LDO. Also con- OUT pin. OUT 2003 Microchip Technology Inc. ...

Page 9

... Required Only 2 if ERROR is used as a Processor RESET Signal (See Text) FIGURE 4-1: Typical Application Circuit. 2003 Microchip Technology Inc. TC1054/TC1055/TC1186 4.1 ERROR Open-Drain Output ERROR is driven low whenever V regulation by more than -5% (typical). This condition may be caused by low input voltage, output current limiting or thermal limiting ...

Page 10

... V I OUTMIN LO ADMA X -3 1.05 – 2.7 0.975 – T JMAX AMAX ------------------------------------------- - = JA 125 55 – ------------------------- = 220 = 318mW and, therefore, JA 2003 Microchip Technology Inc. ...

Page 11

... PACKAGING INFORMATION 6.1 Package Marking Information 5-Pin SOT-23A represents part number code + & temperature range and voltage TC1054 TC1055 (V) Code Code represents year and quarter code 3 represents lot ID number 4 2003 Microchip Technology Inc. TC1054/TC1055/TC1186 TC1186 Code DS21350C-page 11 ...

Page 12

... B .014 .017 .020 MILLIMETERS MIN NOM MAX 5 0.95 1.90 0.90 1.18 1.45 0.90 1.10 1.30 0.00 0.08 0.15 2.60 2.80 3.00 1.50 1.63 1.75 2.80 2.95 3.10 0.35 0.45 0. 0.09 0.15 0.20 0.35 0.43 0. 2003 Microchip Technology Inc. ...

Page 13

... 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. 2003 Microchip Technology Inc. TC1054/TC1055/TC1186 Examples: a) TC1054-1.8VCT713: b) TC1054-2 ...

Page 14

... TC1054/TC1055/TC1186 NOTES: DS21350C-page 14 2003 Microchip Technology Inc. ...

Page 15

... MPSIM, PICC, PICkit, PICDEM, PICDEM.net, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPIC, Select Mode, SmartSensor, SmartShunt, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. ...

Page 16

... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology (Barbados) Inc., Taiwan Branch 11F-3, No ...

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