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Part: TC1185-3.6VCT
Category:
Power Management
-> Regulators
-> Linear Regulators
Description: The TC1014, TC1015, And TC1185 Are High Accuracy (typically ±0
Company: Microchip Technology, Inc.
Datasheet: Download TC1185-3.6VCT datasheet File size : 343 kB
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Datasheet text preview:
TC1014/TC1015/TC1185
50mA, 100mA and 150mA CMOS LDOs with Shutdown and Reference Bypass
Features
· Extremely Low Supply Current (50µA, Typ.) · Very Low Dropout Voltage · Choice of 50mA (TC1014), 100m A (TC1015) and 150mA (TC1016) O utput · High Output Voltage Accuracy · Standard or Custom Output Voltages · Power Saving Shutdown Mode · Reference Bypass Input for Ultra Low-Noise Operation · Over Current and O ver Temperature Protection · Space-Saving 5-Pin SOT-23A Package · Pin Compatible Upgrades for Bipolar Regulators
Device Selection Table
Part Number TC1014-xxVCT TC1015-xxVCT TC1185-xxVCT Package 5-Pin SOT-23A 5-Pin SOT-23A 5-Pin SOT-23A Junction Temp. Range -40°C to +125°C -40°C to +125°C -40°C to +125°C
NOTE: xx indicates output voltages. Available output voltages: 1.8, 2.5, 2.6, 2.7, 2.8, 2.85, 3.0, 3.3, 3.6, 4.0, 5.0. Other output voltages are available. Please contact Microchip Technology Inc. for details.
Package Type
5-Pin SOT-23A
VOUT 5 Bypass 4
Applications
· · · · · · · Battery Operated Systems Portable Computers Medical Instruments Instrum entation Cellular/GSM/PHS Phones Linear Post-Regulator for SM PS Pagers
TC1014 TC1015 TC1185
1 VIN 2 GND 3 SHDN
N OTE: 5-Pin S OT-23A is equivalent to the EIAJ (SC-74A)
2002 Microchip Technology Inc.
D S21335B-page 1
©
TC1014/TC1015/TC1185
General D escription
The TC1014/TC1015/TC1185 are high accuracy (typically ±0.5%) CMOS upgrades for older (bipolar) low dropout regulators such as the LP2980. Designed specifically for battery-operated system s, the devices' CMO S construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 50µA 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 85mV (TC1014); 180mV (TC1015); and 270mV (TC1185) at full load. Supply current is reduced to 0.5µA (max) and VOUT falls to zero when the shutdown input is low. The devices incorporate both over-temperature and over-current protection. The TC1014/TC1015/TC1185 are stable with an output capacitor of only 1µF and have a maximum output current of 50m A, 100mA and 150mA, respectively. For higher output current regulators, please see the TC1107/TC1108/TC1173 (IOUT = 300mA) data sheets.
Typical Application
VIN 1 VIN VOUT 5 + 1µF VOUT
2
TC1014 TC1015 TC1185
GND
3 SHDN Bypass
4 470pF Reference Bypass Cap (Optional)
Shutdown Control (from Power Control Logic)
©
DS 21335B-page 2
2002 Microchip Technology Inc.
TC1014/TC1015/TC1185
1.0 ELECTRICAL CHARACTERISTICS
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 r eliability.
Absolute Maximum Ratings*
Input Voltage ......... 6.5V Output Voltage ... (-0.3V) to (VIN + 0.3V) Power Dissipation ...... Internally Lim ited (Note 7) Maximum Voltage on Any Pin ......... VIN +0.3V to -0.3V Operating Temperature Range ...... -40°C < TJ < 125°C Storage Temperature ....... -65°C to +150°C
TC1014/TC1015/TC1185 ELEC TRICAL SPECIFICATIONS
Electrical Characteristics: VIN = VR + 1V, IL = 100µA, CL = 3.3µF, SHDN > VIH, TA = 25°C, unless otherwise noted. Boldface type specifications apply for junction temperatur es of -40°C to +125°C. Symbol
VIN IOUTMAX
Parameter
Inpu t Operating Voltage Max imum Outp ut Current
Min
2.7 50 100 150 VR 2.5% -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Typ
-- -- -- -- 20 40 0.05 0.5 0.5 2 65 85 180 270 50 0.05 64 300 0.04 160 10 600
Max
6.0 -- -- -- -- -- 0.35 2 3 -- -- 120 250 400 80 0.5 -- 450 -- -- -- --
Units
V mA
Device
Test Conditions
Note 1
T C 1014 T C 1015 TC1185 Note 2 Note 3 (VR + 1V) VIN 6V TC1014; TC1015 IL = 0.1mA to IOUTMAX IL = 0.1mA to IOUTMAX TC1185 (Note 4) IL = 1 0 0 µ A IL = 2 0 m A IL = 5 0 m A TC1015; TC1185 IL = 100mA IL = 150mA (Note 5) TC1185 SHDN = VIH, IL = 0 SHDN = 0V FRE 1kHz VOUT = 0V Note s 6, 7
VOUT TCVOUT VOUT/VIN
O utput Voltage VOUT Temperature Coefficient Line Regulation
VR ±0.5% VR + 2.5%
V ppm/°C % %
VOUT/VOUT Loa d Regula tion
VIN-VOUT
Dropout Voltage
mV
IIN IINSD PSRR IOUTSC VOUT/PD TSD TSD eN
Supply Current (Note 8 ) Shutdown Supply Current Power Supply Rejection Ratio O utput Short Circuit Current Thermal Regulation Thermal Shutdown Die Temperature Thermal Shutdown Hysteresis O utput Noise
µA µA dB mA V /W °C °C nV/Hz
IL = IOUTM AX, F = 10kHz 470 pF f rom Bypass to G ND
No t e
1: 2: 3: 4:
5: 6: 7:
8:
The minimum VIN has to meet two con ditions: VIN 2 .7V a nd VIN VR + VDROPOUT. VR is the regu lato r ou tput voltag e se ttin g. For exa mple: VR = 1 .8V, 2.5V, 2. 6V, 2.7V, 2.8 V, 2.85V, 3.0 V, 3.3V, 3.6V, 4 .0V, 5.0V. TC VO UT = (VOUT M AX VOUT M IN)x 10 6 VOUT x T Reg ulation is measured at a co nstant junction temperature using low duty cycle pulse testing . Load re gula tion is tested over a load rang e from 1 .0mA to the maximu m specifie d outp ut curren t. Chang es in ou tput voltag e due t o heat ing e ffe cts a re covered by the thermal regulation specification. Dropou t vo ltage is defin ed as the inpu t to ou tput diff ere ntia l at w hich the output voltage drops 2% below its nominal va lue at a 1V diffe re ntial. Thermal Regulation is defined as t he ch ange in output voltag e at a time T after a ch ange in power dissipatio n is a pplied, exclud ing load or line reg ulat ion effe cts. Specifications are for a current pu lse equa l to ILMA X at VIN = 6V for T = 10 msec. The maximum allowable po wer dissipatio n is a fun ction of ambient te mperature, the ma ximum a llo wable jun ction te mperature a nd the the rmal resistan ce from junct ion-to-air (i.e ., TA, TJ, JA). Exceed ing the maximum a llo wable p ower dissipation causes t he device to initia te the rmal shutdown . Please se e Se ction 4.0 Th ermal Considerations for more d eta ils. Apply for Junction Temperatures of -40°C to +8 5°C.
2002 Microchip Technology Inc.
D S21335B-page 3
©
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