TC1265-1.8VET Microchip Technology, TC1265-1.8VET Datasheet

IC,VOLT REGULATOR,FIXED,+1.8V,CMOS,SIP,5PIN,PLASTIC

TC1265-1.8VET

Manufacturer Part Number
TC1265-1.8VET
Description
IC,VOLT REGULATOR,FIXED,+1.8V,CMOS,SIP,5PIN,PLASTIC
Manufacturer
Microchip Technology
Datasheet

Specifications of TC1265-1.8VET

Rohs Compliant
YES
Regulator Topology
Positive Fixed
Voltage - Output
1.8V
Voltage - Input
Up to 6V
Voltage - Dropout (typical)
1.2V @ 800mA
Number Of Regulators
1
Current - Output
800mA (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-263-5, D²Pak (5 leads + Tab), TO-263BA
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
6 V
Output Voltage
1.8 V
Output Type
Fixed
Dropout Voltage (max)
1.2 V at 500 mA
Output Current
800 mA
Line Regulation
0.001 %
Load Regulation
0.002 % / mA
Voltage Regulation Accuracy
0.5 %
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Features
• Very Low Dropout Voltage
• 800 mA Output Current
• High Output Voltage Accuracy
• Standard or Custom Output Voltages
• Overcurrent and Overtemperature Protection
• SHDN Input for Active Power Management
• ERROR Output Can Be Used as a Low Battery
Applications
• Battery-operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulators for SMPS
• Pagers
Typical Application
© 2006 Microchip Technology Inc.
Detector (SOIC only)
V
IN
800 mA Fixed-Output CMOS LDO with Shutdown
GND
V
IN
TC1265
SHDN
V
OUT
+
SHDN
C
1 µF
1
V
OUT
Description
The TC1265 is a fixed-output, high-accuracy (typically
±0.5%) CMOS low dropout regulator. Designed
specifically for battery-operated systems, the TC1265’s
CMOS construction eliminates wasted ground current,
significantly extending battery life. Total supply current
is typically 80 µA at full load (20 to 60 times lower than
in bipolar regulators).
Key features of the TC1265 include ultra low noise
operation, very low dropout voltage (typically 450 mV
at full load) and fast response to step changes in load.
The TC1265 incorporates both overtemperature and
overcurrent protection. The TC1265 is stable with an
output capacitor of only 1 µF and has a maximum
output current of 800 mA. It is available in 8-Pin SOIC,
5-Pin TO-220 and 5-Pin DDPAK packages.
Package Type
5-Pin DDPAK
1 2 3
TC1265
Front View
BYPASS
4 5
V
GND
OUT
NC
Tab Is GND
8-Pin SOIC
TC1265
1
2
3
4
TC1265
5-Pin TO-220
1 2 3 4 5
8
7
6
5
TC1265
DS21376D-page 1
V
NC
SHDN
ERROR
IN
Tab Is GND

Related parts for TC1265-1.8VET

TC1265-1.8VET Summary of contents

Page 1

... Total supply current is typically 80 µA at full load ( times lower than in bipolar regulators). Key features of the TC1265 include ultra low noise operation, very low dropout voltage (typically 450 mV at full load) and fast response to step changes in load. The TC1265 incorporates both overtemperature and overcurrent protection. The TC1265 is stable with an output capacitor of only 1 µ ...

Page 2

... TC1265 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † Input Voltage .........................................................6.5V Output Voltage.................. (V – 0.3V Power Dissipation................Internally Limited (Note 7) Maximum Voltage on Any Pin ........V IN Operating Temperature Range...... -40°C < T Storage Temperature..........................-65°C to +150°C DC CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, V SHDN > ...

Page 3

... A T -40 — +125 J T -65 — +150 A θ — θ — θ — 163 JA to exceed Maximum Junction Temperature (+125°C). J TC1265 = 3.3 µF, L Units Conditions % Flows to ERROR V mV Note 8 ≥ 2.7V for OUTMAX for ms. LMAX IN = 3.3 µF, L Units Conditions ° ...

Page 4

... TC1265 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 ...

Page 5

... TYPICAL PERFORMANCE CURVES (CONT) 0.090 0.080 0.070 0.060 0.050 0.040 0.030 0.020 0.010 0.000 -40°C 0°C 25°C 70°C 85°C TEMPERATURE (°C) FIGURE 2-1: I vs. Temperature. SHDN © 2006 Microchip Technology Inc. 125°C TC1265 DS21376D-page 5 ...

Page 6

... TC1265 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in TABLE 3-1: PIN FUNCTION TABLE Pin No. Pin No. (5-Pin DDPAK) Symbol (8-Pin SOIC) (5-Pin TO-220 — BYPASS 5 — ERROR — 3.1 Regulated Output Voltage (V Regulated voltage output. 3.2 Ground (GND) Ground terminal. ...

Page 7

... DETAILED DESCRIPTION The TC1265 is a precision, fixed-output LDO. Unlike bipolar regulators, the TC1265’s supply current does not increase with load current. In addition, V remains stable and within regulation over the entire load current range (an important LOADMAX consideration in RTC and CMOS RAM battery back-up applications) ...

Page 8

... Maximum allowable power dissipation: IN for JA In this example, the TC1265 dissipates a maximum of 260 mW, below the allowable limit of 500 mW similar manner, used to calculate maximum current and/or input voltage limits. For example, the maximum allowable Thermal V is found by substituting the maximum allowable Resistance IN (θ ...

Page 9

... 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. © 2006 Microchip Technology Inc. TC1265 Example TC1265 3.3VET 0642256 Example: TC1265 3.3VAT 0642256 Example: 1265-33V e OA^^0642 3 ...

Page 10

... TC1265 5-Lead Plastic (ET) (DDPAK) ) Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging TOP VIEW A A1 Dimension Limits Number of Pins Pitch Overall Height Standoff § Overall Width Exposed Pad Width Molded Package Length Overall Length ...

Page 11

... P .146 .156 3.71 L .540 .560 13.72 J1 .090 .115 2.29 C1 .014 .022 0.36 β .025 .040 0.64 α 3° 7° 3° TC1265 MAX 1.83 6.93 1.02 4.83 10.54 14.99 6.55 1.40 2.87 3.96 14.22 2.92 0.56 1.02 7° Revised 08-01-05 DS21376D-page 11 ...

Page 12

... TC1265 8-Lead Plastic Small Outline (SN) – Narrow, 150 mil Body (SOIC) Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 45° c β Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § ...

Page 13

... Added disclaimer to package outline drawings • Updated package outline drawings as needed • Added Appendix A - Revision History Revision C (October 2004) • Not Documented Revision B (May 2002) • Not Documented Revision A (March 2002) • Original Release of this Document. © 2006 Microchip Technology Inc. TC1265 DS21376D-page 13 ...

Page 14

... TC1265 NOTES: DS21376D-page 14 © 2006 Microchip Technology Inc. ...

Page 15

... Microchip Technology Inc. Examples TC1265-1.8VAT Tape and b) TC1265-2.5VAT Reel c) TC1265-3.0VAT d) TC1265-3.3VAT a) TC1265-1.8VETTR 1.8V LDO, DDPAK-5 pkg., b) TC1265-2.5VETTR 2.5V LDO, DDPAK-5 pkg., c) TC1265-3.0VETTR 3.0V LDO, DDPAK-5 pkg., d) TC1265-3.3VETTR 3.3V LDO, DDPAK-5 pkg., a) TC1265-1.8VOA b) TC1265-1.8VOATR 1.8V LDO, SOIC-8 pkg., c) TC1265-2.5VOA d) TC1265-2.5VOATR 2.5V LDO, SOIC-8 pkg., e) TC1265-3 ...

Page 16

... TC1265 NOTES: DS21376D-page 16 © 2006 Microchip Technology Inc. ...

Page 17

... Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA 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. ...

Page 18

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2006 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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