Datasheet

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TC1014/TC1015/TC1185

Features:

• Low Supply Current (50 µA, typical)

• Low Dropout Voltage

• Choice of 50 mA (TC1014), 100 mA (TC1015)

and 150 mA (TC1185) Output

• High Output Voltage Accuracy

• Standard or Custom Output Voltages

• Power-Saving Shutdown Mode

• Reference Bypass Input for Ultra Low-Noise

Operation

• Overcurrent and Overtemperature Protection

• Space-Saving 5-Pin SOT-23 Package

• Pin-Compatible Upgrades for Bipolar Regulators

• Standard Output Voltage Options:

- 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V,

3.3V, 3.6V, 4.0V, 5.0V

Applications:

• Battery-Operated Systems

• Portable Computers

• Medical Instruments

• Instrumentation

• Cellular/GSM/PHS Phones

• Linear Post-Regulator for SMPS

• Pagers

Typical Application

General Description

The TC1014/TC1015/TC1185 are high accuracy

(typically ±0.5%) CMOS upgrades for older (bipolar)

Low Dropout Regulators (LDOs) such as the LP2980.

Designed specifically for battery-operated systems, the

devices’ CMOS construction eliminates wasted ground

current, significantly extending battery 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 ultra low-noise

operation (plus optional Bypass input), fast response to

step changes in load, and very low dropout voltage,

typically 85 mV (TC1014), 180 mV (TC1015), and

270 mV (TC1185) at full-load. Supply current is

reduced to 0.5 µA (max) and V

OUT

falls to zero when

the shutdown input is low. The devices incorporate both

overtemperature and overcurrent protection.

The TC1014/TC1015/TC1185 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 see the

TC1107 (DS21356), TC1108 (DS21357), TC1173

(DS21362) (I

OUT

= 300 mA) data sheets.

Package Type

TC1014

TC1015

TC1185

OUT

SHDN

GND

Bypass

470 pF

Reference

Bypass Cap

(Optional)

1µF

OUT

Shutdown Control

(from Power Control Logic)

Bypass

SHDN

5-Pin SOT-23

TC1014

TC1015

TC1185

OUT

GND

50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown

and Reference Bypass

Summary of content (22 pages)

PAGE 1
TC1014/TC1015/TC1185 50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown and Reference Bypass Features: General Description • Low Supply Current (50 µA, typical) • Low Dropout Voltage • Choice of 50 mA (TC1014), 100 mA (TC1015) and 150 mA (TC1185) Output • High Output Voltage Accuracy • Standard or Custom Output Voltages • Power-Saving Shutdown Mode • Reference Bypass Input for Ultra Low-Noise Operation • Overcurrent and Overtemperature Protection • Space-Saving 5-Pin SOT-23 Package • Pin-Compatible Upgrades
PAGE 2
TC1014/TC1015/TC1185 1.0 ELECTRICAL CHARACTERISTICS † Notice: 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. Absolute Maximum Ratings† Input Voltage .................
PAGE 3
TC1014/TC1015/TC1185 TC1014/TC1015/TC1185 ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Specifications: VIN = VR + 1V, IL = 100 µA, CL = 1.0 µF, SHDN > VIH, TA = +25°C, unless otherwise noted. Boldface type specifications apply for junction temperatures of -40°C to +125°C. Symbol Min Typ Max Units Device Output Noise Parameter eN — 600 — nV/√Hz — IL = IOUTMAX, F = 10 kHz 470 pF from Bypass to GND SHDN Input High Threshold VIH 45 — — %VIN — VIN = 2.5V to 6.
PAGE 4
TC1014/TC1015/TC1185 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.
PAGE 5
TC1014/TC1015/TC1185 TYPICAL PERFORMANCE CURVES (CONTINUED) Note: Unless otherwise specified, all parts are measured at temperature = +25°C. Ground Current vs. VIN VOUT vs. VIN 80 3.5 VOUT = 3.3V ILOAD = 150mA 3 60 VOUT = 3.3V ILOAD = 0 2.5 50 VOUT (V) GND CURRENT (µA) 70 40 2 1.5 30 1 20 0 0 1.5 2 2.5 3 3.5 3.5 44 4.5 55 5.5 0 0.5 0.5 11 1.5 5.5 66 6.5 6.5 77 0 0.5 1 1.5 2 2.5 2.5 3 3.5 3.5 4 4.5 4.5 5 5.5 5.5 6 6.5 6.5 77 7.5 VIN (V) FIGURE 2-7: Voltage (VIN). Ground Current vs.
PAGE 6
TC1014/TC1015/TC1185 TYPICAL PERFORMANCE CURVES (CONTINUED) Note: Unless otherwise specified, all parts are measured at temperature = +25°C. Output Voltage vs. Temperature Output Voltage vs. Temperature 4.994 5.025 5.020 VOUT = 5V ILOAD = 10mA 4.992 4.990 4.988 5.010 VOUT (V) VOUT (V) 5.015 5.005 5.000 4.995 4.990 4.985 VOUT = 5V ILOAD = 150mA 4.986 4.984 4.982 4.980 4.978 CIN = 1µF COUT = 1µF VIN = 6V CIN = 1µF COUT = 1µF VIN = 6V 4.976 4.
PAGE 7
TC1014/TC1015/TC1185 TYPICAL PERFORMANCE CURVES (CONTINUED) Note: Unless otherwise specified, all parts are measured at temperature = +25°C. Measure Rise Time of 3.3V LDO With Bypass Capacitor Measure Rise Time of 3.3V LDO Without Bypass Capacitor Conditions: CIN = 1μF, COUT = 1μF, CBYP = 470pF, ILOAD = 100mA VIN = 4.3V, Temp = 25°C, Rise Time = 448μS Conditions: CIN = 1μF, COUT = 1μF, CBYP = 0pF, ILOAD = 100mA VIN = 4.
PAGE 8
TC1014/TC1015/TC1185 TYPICAL PERFORMANCE CURVES (CONTINUED) Note: Unless otherwise specified, all parts are measured at temperature = +25°C. Measure Rise Time of 5.0V LDO With Bypass Capacitor Measure Rise Time of 5.
PAGE 9
TC1014/TC1015/TC1185 TYPICAL PERFORMANCE CURVES (CONTINUED) Note: Unless otherwise specified, all parts are measured at temperature = +25°C. Load Regulation of 3.3V LDO Load Regulation of 3.3V LDO Conditions: CIN = 1μF, COUT = 2.2μF, CBYP = 470pF, VIN = VOUT + 0.25V, Temp = 25°C Conditions: CIN = 1μF, COUT = 2.2μF, CBYP = 470pF, VIN = VOUT + 0.
PAGE 10
TC1014/TC1015/TC1185 TYPICAL PERFORMANCE CURVES (CONTINUED) Note: Unless otherwise specified, all parts are measured at temperature = +25°C. Thermal Shutdown Response of 5.0V LDO Line Regulation of 5.0V LDO Conditions: VIN = 6V, CIN = 0μF, COUT = 1μF Conditions: VIN = 6V, + 1V Squarewave @2.5kHz VIN VOUT VOUT CIN = 0μF, COUT = 1μF, CBYP = 470pF, ILOAD = 100mA, VIN & VOUT are AC coupled FIGURE 2-29: LDO. DS21335E-page 10 Line Regulation of 5.
PAGE 11
TC1014/TC1015/TC1185 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE Pin No. (5-Pin SOT-23) Symbol 1 VIN 3.1 Description Unregulated supply input. 2 GND 3 SHDN Ground terminal. Shutdown control input. The regulator is fully enabled when a logic high is applied to this input. The regulator enters shutdown when a logic low is applied to this input. During shutdown, output voltage falls to zero and supply current is reduced to 0.
PAGE 12
TC1014/TC1015/TC1185 4.0 DETAILED DESCRIPTION 4.1 Bypass Input The TC1014, TC1015 and TC1185 are precision fixed output voltage regulators (if an adjustable version is needed, see the TC1070, TC1071 and TC1187 data sheet (DS21353). Unlike bipolar regulators, the TC1014, TC1015 and TC1185 supply current does not increase with load current. In addition, the LDOs’ output voltage is stable using 1 µF of capacitance over the entire specified input voltage range and output current range.
PAGE 13
TC1014/TC1015/TC1185 5.0 THERMAL CONSIDERATIONS 5.1 Thermal Shutdown Integrated thermal protection circuitry shuts the regulator off when die temperature exceeds 160°C. The regulator remains off until the die temperature drops to approximately 150°C. 5.2 Equation 5-1 can be used in conjunction with Equation 5-2 to ensure regulator thermal operation is within limits. For example: Given: VINMAX = 3.0V +10% VOUTMIN = 2.7V – 2.
PAGE 14
TC1014/TC1015/TC1185 6.0 PACKAGING INFORMATION TABLE 6-1: 6.1 PART NUMBER CODE AND TEMPERATURE RANGE Package Marking Information 1 2 3 4 (V) TC1014 Code TC1015 Code TC1185 Code 1.8 AY BY NY 2.5 A1 B1 N1 2.6 NB BT NT 2.7 A2 B2 N2 2.8 AZ BZ NZ 2.85 A8 B8 N8 3.0 A3 B3 N3 3.3 A5 B5 N5 range and voltage 3.6 A9 B9 N9 e represents year and 2-month period code 4.0 A0 B0 N0 f represents lot ID number 5.
PAGE 15
TC1014/TC1015/TC1185 5-Lead Plastic Small Outline Transistor (OT) [SOT-23] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging b N E E1 3 2 1 e e1 D A2 A c φ A1 L L1 Units Dimension Limits Number of Pins MILLIMETERS MIN NOM MAX N 5 Lead Pitch e 0.95 BSC Outside Lead Pitch e1 Overall Height A 0.90 – Molded Package Thickness A2 0.89 – 1.30 Standoff A1 0.00 – 0.15 Overall Width E 2.
PAGE 17
TC1014/TC1015/TC1185 APPENDIX A: REVISION HISTORY Revision E (February 2007) • Section 1.0 “Electrical characteristics”: Changed Dropout Voltage from mA to µA. • Updated “Product Identification System”, page 19. • Updated Section 6.0 “Packaging Information”. Revision D (April 2006) • Removed “ERROR is open circuited” from SHDN pin description in Pin Function Table. • Added verbiage for pinout descriptions in Pin Function Table. • Replaced verbiage in first paragraph of Section 4.0 Detailed Description.
PAGE 19
TC1014/TC1015/TC1185 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. -X.X X XXXXX Device Output Voltage Temperature Range Package Device: TC1014: TC1015: TC1185: 50 mA LDO with Shutdown and VREF Bypass 100 mA LDO with Shutdown and VREF Bypass 150 mA LDO with Shutdown and VREF Bypass Output Voltage: 1.8 2.5 2.6 2.7 2.8 2.85 3.0 3.3 3.6 4.0 5.
PAGE 21
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.
PAGE 22
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