TS5214资料

SOT-23

TS5214

300mA Low Noise LDO Voltage Regulator

Pin Definition:

1. Output 2. Input 3. Ground

SOT-

SOT-223

General Description

Pin Definition:

TS5214 TS5214A 1. Output 1. Ground 2. Ground 2. Input 3. Input 3. Output

TS5214 is an efficient linear voltage regulator with ultra low noise output, very low dropout voltage (typically 20mV at

light loads and 350mV at 300mA at 5V version), and very low power consumption (600uA at 100mA), providing high output current even when the application requires very low dropout voltage. TS5214 is included a precision voltage reference, error correction circuit, a current limited output driver, over temperature shutdown and revered battery protection

Features ● ● ● ● ● ●

Ultra Low Noise Output

Output Current up to 300mA (5V Version) Low Dropout Voltage Low Power Consumption Internal Current Limit

Thermal Shutdown Protection

Ordering Information Part No.

Package

Packing

TS5214CXxx RF SOT-23 3Kpcs / 7” Reel TS5214CYxx RM SOT- 1Kpcs / 7” Reel TS5214ACYxx RM SOT- 1Kpcs / 7” Reel TS5214CWxx RP SOT-223 2.5Kpcs / 13” Reel Note: Where xx denotes voltage option, available are

50=5.0V 33=3.3V 30=3.0V 29=2.9V 28=2.8V 25=2.5V

Contact factory for additional voltage options.

Application ● ● ● ● ● ●

Cellular Telephones

Palmtops, Notebook Computers Battery Powered Equipment

Consumer and Portable Application

SMPS Post Regulator and DC to DC Modules High-efficiency Linear Power Supplies

Typical Application Circuit

VIN

Block Diagram

VOUT

CIN 1uF

COUT 2.2uF

1/7 Version: C07

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Absolute Maximum Rating (Note 1)

Parameter

Input Supply Voltage

Input Supply Voltage (Recommend) Power Dissipation (Note 2)

SOT-23

Thermal Resistance SOT-

SOT-223

Operating Junction Temperature Range Storage Temperature Range

oLead Soldering Temperature (260C)

TS5214

300mA Low Noise LDO Voltage Regulator

Symbol

VIN VIN PD ӨJA TJ TSTG

Limit

-20~ +20 +2.5 ~ +16 Internal limited

220 180 130 -40 ~ +125 -65 ~ +150

5

Unit

V V

o

C/W

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C C S

Electrical Specification (VIN =Vo+1V, Io=100uA, COUT=1uF, Vce≥2V, TJ = 25oC, unless otherwise specified.)

Parameter

Output Voltage

Output Voltage Temp. Coefficient Line Regulation

Load Regulation (Note 5) Dropout Voltage (Note 6)

Conditions

VIN =Vo + 1V

VIN =Vo + 1V, Io= 120mA (Note 4)

Vo+1V ≤ VIN ≤ 16V 0.1mA ≤ Io ≤ 120mA Io=100uA Io=50mA Io=150mA

Io=300mA (5V version) Io=100uA Io=50mA Io=150mA

Io=300mA (5V version) VOUT =0V

At f=100Hz, Io=100uA,

Io=50mA, COUT =2.2uF,

Min

0.97|Vo| 0.96|Vo|

-- -- -- -- -- -- -- -- -- -- -- 150 -- -- --

Typ

VOUT 50 0.1 1 20 250 350 450 110 500 2600 3500 200 75 0.05 260

Max

1.03|Vo| 1.04|Vo|

-- 0.5 2 -- 300 400 500 150 1000 3100 4200 -- -- -- --

Unit

V ppm/C % % mV

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Ground Pin Current (Note 7) uA

Output Current Limit mA Power Supply Rejection Ratio dB Thermal Regulation (Note 8) %/W Output Noise nV√Hz Note:

1. Exceeding the absolute maximum rating may damage the device.

2. The maximum allowable power dissipation at any Ta is Pd(max) = [TJ (max) - Ta] + ӨJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. 3. The device is not guaranteed to function outside its operating rating.

4: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.

5: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 1mA to 300mA (5V version) and 1mA to 120mA (VOUT <5V version). Changes in output voltage due to heating effects are covered by the thermal regulation specification.

6: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differential.

7: Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of the load current plus the ground pin current.

8: Thermal regulation is defined as the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 300mA load pulse at Vin=16V for t=10mS.

2/7 Version: C07

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Application Information

TS5214

300mA Low Noise LDO Voltage Regulator

TS5214 is designed to provide 300mA (5V version) of continuous current in a very small package. Maximum power dissipation can be calculated based on the output current and the voltage drop across the part. To determine the maximum power dissipation of the package, use the junction-ambient thermal resistance of the device and the following basic equation:

PD(max) = [ TJ(max) – Ta ] /ΘJA

TJ (max) is the maximum junction temperature of the die(125C), and Ta is the ambient operating temperature. ΘJA is layout dependent, the actual power dissipation of the regulator circuit can be determined using the equation:

PD = ( VIN – Vout ) * Iout + VIN * Ignd

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Substituting Pd(max) for Pd and solving for the operating conditions that are critical to the application will give the maximum operating conditions for the regulator circuit. For example, when operating the TS5214CX33 at room temperature with a minimum footprint layout, the maximum input voltage for a set output current can be determined as follows:

PD(max) = (125oC – 25oC) / 220oC/W PD(max) = 455mW

The junction to ambient thermal resistance for the minimum footprint is 220C/W, the maximum power dissipation must not be exceeded for proper operation. Using the output voltage of 3.3V and an output current of 120mA, the maximum input voltage can be determined. From the electrical characteristics table, the maximum ground current for 120mA output current is 2.5mA.

445mW = (VIN – 3.3V ) * 120mA + VIN * 2.5mA

445mW = VIN * 120mA – 3.3 * 120mA + VIN * 2.5mA 445mW = VIN * 120mA – 395mW + VIN * 2.5mA 840mW = VIN * 122.5mA VIN (max) = 6.85V

Therefore, a 3.3V application at 120mA of output current can accept a maximum input voltage of 6.85V in a SOT-23 package.

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Input Capacitor Requirement An input capacitor of 0.1uF or greater is recommended when the device is more than 10” away from the bulk AC supply capacitance or when the supply is a battery.

Output Capacitor Requirement TS5214 requires an output capacitor to maintain stability and improve transient response is necessary. 2.2uF minimum is recommended. Larger values improve the regulator’s transient response. The output capacitor value may be increased without limit.

The output capacitor should have an ESR (effective series resistance) less than 5Ω and a resonant frequency above 1MHz. Ultra low ESR capacitors can cause a low amplitude oscillation on the output and/or under damped transient response. Most of tantalum or aluminum electrolytic capacitors are adequate; film types will work. Since many

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aluminum electrolytic have electrolytes that freeze at about –30C, solid tantalums are recommended for operation

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below –25C. At lower values of output current, less output capacitance is required for output stability. The capacitor can be reduced to 0.47uF for current below 10mA or 0.33uF for currents below 1mA.

No Load Stability TS5214 will remain stable and in regulation with no load, unlike many other voltage regulators. This is especially important in CMOS RAM keep alive applications.

Dual Supply Operation When used in dual supply systems where the regulator load is returned to a negative supply, the output voltage must be diode clamped to ground.

3/7 Version: C07

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TS5214

300mA Low Noise LDO Voltage Regulator

SOT-23 Mechanical Drawing

DIM A A1 B C D E F G H I J

SOT-23 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX. 0.95 BSC 0.037 BSC 1.9 BSC 0.074 BSC 2.60 3.00 0.102 0.118 1.40 1.70 0.055 0.067 2.80 3.10 0.110 0.122 1.00 1.30 0.039 0.051 0.00 0.10 0.000 0.004 0.35 0.50 0.014 0.020 0.10 0.20 0.004 0.008 0.30 0.60 0.012 0.024 5º 10º 5º 10º

Marking Diagram

= Product code = Year Code = Month Code

(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec) L = Lot Code

XX = Voltage Code

(K=2.5V, N=2.8V, O=2.9V, P=3.0V, S=3.3V, 5=5V)

P Y M

4/7 Version: C07

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TS5214

300mA Low Noise LDO Voltage Regulator

SOT- Mechanical Drawing

DIM A B C D E F G H I J

SOT- DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX 4.40 4.60 0.173 0.181 1.50 1.7 0.059 0.070 2.30 2.60 0.090 0.102 0.40 0.52 0.016 0.020 1.50 1.50 0.059 0.059 3.00 3.00 0.118 0.118 0. 1.20 0.035 0.047 4.05 4.25 0.159 0.167 1.4 1.6 0.055 0.068 0.35 0.44 0.014 0.017

Marking Diagram

= Year Code

= Month Code

(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec) L = Lot Code

XX = Voltage Code

(2.5=2.5V, 2.8=2.8V, 2.9=2.9V, 3.0=3.0V, 3.3=3.3V, 5.0=5V)

Y M

5/7 Version: C07

元器件交易网www.cecb2b.com

TS5214

300mA Low Noise LDO Voltage Regulator

SOT-223 Mechanical Drawing

DIM A B C D E F G H I J K

SOT-223 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX 6.350 6.850 0.250 0.270 2.900 3.100 0.114 0.122 3.450 3.750 0.136 0.148 0.595 0.635 0.023 0.025 4.550 4.650 0.179 0.183 2.250 2.350 0.088 0.093 0.835 1.035 0.032 0.041 6.700 7.300 0.263 0.287 0.250 0.355 0.010 0.014 10󰀁 16󰀁 10󰀁 16󰀁 1.550 1.800 0.061 0.071

Marking Diagram

= Year Code = Month Code

(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec) L = Lot Code

XX = Voltage Code

(2.5=2.5V, 2.8=2.8V, 2.9=2.9V, 3.0=3.0V, 3.3=3.3V, 5.0=5V)

Y M

6/7 Version: C07

元器件交易网www.cecb2b.com

TS5214

300mA Low Noise LDO Voltage Regulator

Notice

Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.

Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.

The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale.

7/7 Version: C07