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ManualsBrandsTaiwan Semiconductor ManualsIntegrated Circuits (ICs)LDO Voltage Regulator 3.3V 150mA SOT-25

TS5205

Taiwan Semiconductor

Document Number: DS_P0000197 1 Version: I15

150mA Low Noise LDO Voltage Regulator

with Enable Function

GENERAL DESCRIPTION

TS5205 is an efficient linear voltage regulator with ultra-

low noise output, very low dropout voltage (typically

17mV at light loads and 165mV at 150mA), and very low

power consumption (600µA at 100mA), providing high

output current even when the application requires very

low dropout voltage. The Chip Enable (EN) includes a

CMOS or TTL compatible input allows the output to be

turned off to prolong battery life. When shutdown, power

consumption drops nearly to zero. TS5205 is included a

precision voltage reference, error correction circuit, a

current limited output driver, over temperature

shutdown, revered battery protection and a reference

bypass pin to improve its already excellent low-noise

performance.

FEATURES

● Ultra Low Noise Output

● Output Current up to 150mA

● Low Dropout Voltage

● Low Power Consumption

● “Zero” Off-mode Current

● Logic Controlled Electronic Enable

● Internal Current Limit

● Thermal Shutdown Protection

APPLICATION

● Cellular Telephones

● Palmtops, Notebook Computers

● Battery Powered Equipment

● Consumer and Personal Electronics

● SMPS Post Regulator and DC to DC Modules

● High-efficiency Linear Power Supplies

● Portable Application

SOT

Definition

1. Input

2. Ground

3. Enable

4. Bypass / Adjust

5. Output

Notes: Moisture sensitivity level: level 3. Per J-STD-020

TYPICAL APPLICATION CIRCUIT

TS5205CX5xx Fixed Output Version

TS5205CX5 Adjustable Output Version

Adjustable Version: V

OUT

= 1.24 (1+R2/R1)

(Adjustable output range up to 8V)

EN (pin3) may be connected directly to V

(pin 1) Low noise operation: C

BYP

=470pF, C

OUT

>2.2uF

Basic operation: C

BYP

=not used, C

OUT

>2.2uF

Summary of content (8 pages)

PAGE 1
TS5205 Taiwan Semiconductor 150mA Low Noise LDO Voltage Regulator with Enable Function GENERAL DESCRIPTION FEATURES TS5205 is an efficient linear voltage regulator with ultra- low dropout voltage.
PAGE 2
TS5205 Taiwan Semiconductor ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise noted) (Note 1) PARAMETER SYMBOL LIMIT UNIT Input Supply Voltage VIN -20~ +20 V Enable Input Voltage VCE -20~ +20 V Power Dissipation (Note 2) PD Internal limited Operating Junction Temperature Range TJ -40 ~ +125 o -65 ~ +150 o Storage Temperature Range TSTG o Lead Soldering Temperature (260 C) C C 5 S SYMBOL Limit UNIT RӨJA 220 °C/W SYMBOL LIMIT UNIT Input Supply Voltage VIN +2.
PAGE 3
TS5205 Taiwan Semiconductor ELECTRICAL SPECIFICATIONS (VIN =Vo+1V, Io=100µA, COUT=1µF, Vce≥2V,TA = 25°C unless otherwise noted) PARAMETER CONDITIONS MIN TYP MAX UNIT -- -- 0.4 V 2.0 -- -- V VIL≤ 0.4V -- 0.01 -1 µA VIH≥ 2.0V -- 5 20 V Enable Function Enable Input Logic-Low Voltage Regulation shutdown Enable Input Logic-Low Voltage Regulation enable Enable input Current Note: 1. Exceeding the absolute maximum rating may damage the device. 2.
PAGE 4
TS5205 Taiwan Semiconductor ORDERING INFORMATION OUTPUT VOLTAGE PART NO. PACKAGE PACKING 2.5V TS5205CX525 RFG SOT-25 3,000pcs / 7” Reel 3.3V TS5205CX533 RFG SOT-25 3,000pcs / 7” Reel 5.0V TS5205CX550 RFG SOT-25 3,000pcs / 7” Reel Note: 1. Compliant to RoHS Directive 2011/65/EU and in accordance to WEEE 2002/96/EC. 2. Halogen-free according to IEC 61249-2-21 definition.
PAGE 5
TS5205 Taiwan Semiconductor APPLICATION INFORMATION (CONTINUE) Reference Bypass Capacitor Bypass is connected to the internal voltage reference. A 470pF capacitor (CBYPASS) connected from Bypass to Ground quiets this reference, providing a significant reduction in output noise. CBYPASS reduces the regulator phase margin; when using CBYPASS, output capacitors of 2.2µF or greater are generally required to maintain stability.
PAGE 6
TS5205 Taiwan Semiconductor APPLICATION INFORMATION (CONTINUE) Thermal Characteristics o The junction to ambient thermal resistance for the minimum footprint is 220 C/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) * 150mA + VIN * 2.
PAGE 7
TS5205 Taiwan Semiconductor PACKAGE OUTLINE DIMENSIONS (Unit: Millimeters) SOT-25 SUGGESTED PAD LAYOUT (Unit: Millimeters) MARKING DIAGRAM H = Device Code X = Voltage Code 5 =5.0V S =3.3V K =2.
PAGE 8
TS5205 Taiwan Semiconductor 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.