LP6203-QVF

LP6203 POWER | Alldatasheet

Document overview

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• PDF pages: 8

Technical content

Features

‹ 1.6V Start-up Input Voltage ‹ Output up to 20V ‹ High Supply Capability to Deliver 6V 500mA with 2 Alkaline Cell ‹ 19µA Quiescent (Switch-off) Supply Current ‹ Zero Shutdown Mode Supply Current ‹ 90% Efficiency ‹ Up to 450KHz Switching Frequency ‹ Using Internal Power Switches ‹ Small DFN2*2-6 Package  Typical Application Circuit LP6203QVF VDD SOE N/A SW FB GND 10uF 0.01 500K SS24 1.5M Vin 10uH Vout 22pF 22pF Cout 47uF 1uF Pin Configurations TDFN-6(Top View)

Preliminary Datasheet LP6203 LP6203 –01 Ver. 1. 1 Datasheet FEB.-2009 Page 2 of 8 Functional Pin Description Pin Number Pin Name Function 1 SOE Source of the mosfet.

2 GND Ground

3 N/A No Connector

4 VDD Output

5 FB Feedback

6 SW Switch output

PAD1 Connected to PIN 6 internally PAD2 Need to connect to GND Function Block Diagram Absolute Maximum Ratings ESD Susceptibility Recommended Operating Conditions LP6203

Preliminary Datasheet LP6203 LP6203 –01 Ver. 1. 1 Datasheet FEB.-2009 Page 3 of 8

Electrical Characteristics

(VIN = 1.5V, VDD set to 3.3V, Load Current = 0, TA = 25°C, unless otherwise specified) Parameter Test Conditions Min Typ Max Units Start-UP Voltage IL = 1mA 1.50 1.55 V Operating VDD Range VDD pin voltage 2 6.5 V No Load Current I (VIN) V IN = 2V, VOUT = 6V 19 µA Feedback Reference Voltage Close Loop, VDD = 3.3V 1.187 1.212 1.237 V Switching Frequency VDD = 3.3V KHz Maximum Duty VDD = 3.3V 80 % SW ON Resistance VDD = 3.3V 0.3 Ω Current Limit Setting VDD = 3.3V 2.5 A Line Regulation V IN = 1.5 ~ 2.5V, IL = 1mA 10 mV/V Load Regulation V IN = 2.5V, IL = 1 ~ 100mA 0.25 mV/mA Temperature Stability for VOUT 50 ppm/ ℃ Thermal Shutdown 165 ℃ Thermal Shutdown Hysterises 10 ℃

Preliminary Datasheet LP6203 LP6203 –01 Ver. 1. 1 Datasheet FEB.-2009 Page 4 of 8 Typical Operating Characteristics TA=25℃, CIN =10 µF, COUT =20 µF, L=4.7 µH, unless otherwise noted. Refer to Test Circuit Figure. 1 VOUT=3.3V (RM=0.33/5 Ω) Output Voltage VS Output Current 0.5 1.5 2.5 3.5 0 200 400 600 800 Output Current (mA) Output Voltage (V) VIN=1.1V VIN=1.5V VIN=1.8V Start up Voltage and Hold on Voltage VS Output Current 0.2 0.4 0.6 0.8 1.2 1.4 1.6 0 1 02 03 04 05 0 Output Current (mA) Vin (V) Start up Hold on Efficiency VS Output Current 10 100 1000 Output Current (mA) Efficiency (%) VIN=1.1V VIN=1.5V Efficiency VS Output Current 10 100 1000 Output Current (mA) Efficiency (%) VIN=1.8V VIN=2.4V Oscillator Frequency VS Supply Voltage (Io=200mA) 100 150 200 250 300 350 400 450 11 . 522 . 5 Supply Voltage (V) Oscillator Frequency (KHz)

Preliminary Datasheet LP6203 LP6203 –01 Ver. 1. 1 Datasheet FEB.-2009 Page 5 of 8 TTyyppiiccaall PPeerrffoorrmmaannccee CChhaarraacctteerriissttiiccss TA=25℃, CIN =10 µF, COUT =20 µF, L=4.7 µH, unless otherwise noted. VOUT=5V (RM=0.33/5Ω) Efficiency VS Output Current 10 100 1000 Output Current (mA) Efficiency (%) VIN=1.2V VIN=1.8V VIN=2.4V Efficiency VS Output Current 10 100 1000 Output Current (mA) Efficiency (%) VIN=3.3V VIN=4.2V Start up Voltage and Hold on Voltage VS Output Current 0.2 0.4 0.6 0.8 1.2 1.4 0 1 02 03 04 05 0 Output Current (mA) Vin (V) Start up Hold on Output Voltage VS Output Current 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 0 200 400 600 800 Output Current (mA) Output Voltage (V) VIN=1.1V VIN=1.5V VIN=1.8V Oscillator Frequency VS Supply Voltage (Io=200mA) 150 200 250 300 350 400 450 1.5 2 2.5 3 3.5 4 Supply Voltage (V) Oscillator Frequency (KHz)

Preliminary Datasheet LP6203 LP6203 –01 Ver. 1. 1 Datasheet FEB.-2009 Page 6 of 8 LX Pin Wave Form & Output Ripple Time (1µS/Div ) Output Ripple LX Wave Form VIN=2.4 VOUT=3.3V @ 200mA LX Pin Wave Form & Output Ripple Time (1µS/Div ) Output Ripple LX Wave Form VIN=1.8 VOUT=3.3V @ 200mA LX Pin Wave Form & Output Ripple Time (1µS/Div ) Output Ripple LX Wave Form VIN=1.5 VOUT=3.3V @ 200mA LX Pin Wave Form & Output Ripple Time (1µS/Div ) Output Ripple LX Wave Form VIN=3.3V VOUT=5V @ 200mA LX Pin Wave Form & Output Ripple Time (1µS/Div ) Output Ripple LX Wave Form VIN=2.4V VOUT=5V @ 200mA LX Pin Wave Form & Output Ripple Time (1µS/Div ) Output Ripple LX Wave Form VIN=4V VOUT=5V @ 200mA

Preliminary Datasheet LP6203 LP6203 –01 Ver. 1. 1 Datasheet FEB.-2009 Page 7 of 8 TTyyppiiccaall PPeerrffoorrmmaannccee CChhaarraacctteerriissttiiccss TA=25℃, CIN =10 µF, COUT =20 µF, L=4.7 µH, unless otherwise noted. Refer to Test Circuit Figure. 2 V OUT=5V (RM=0.33/5Ω) Efficiency VS Output Current (VOUT=5V) 10 100 1000 Output Current (mA) Efficiency (%) VIN=1.8V VIN=2.4V Efficiency VS Output Current (VOUT=5V) 100 10 100 1000 Output Current (mA) Efficiency (%) VIN=3.3V VIN=4.2V Output Voltage VS Output Current 0 200 400 600 800 1000 Output Current (mA) VOUT (V) VIN=1.8V VIN=2.4V Oscillator Frequency VS Supply Voltage (Io=300mA) 200 250 300 350 400 450 22 . 533 . 54 Supply Voltage (V) Oscillator Frequency (KHz)

Preliminary Datasheet LP6203 LP6203 –01 Ver. 1. 1 Datasheet FEB.-2009 Page 8 of 8 Packaging Information Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A1 0.000 0.050 0.000 0.002 A3 0.203REF 0.008REF D 1.924 2.076 0.076 0.082 E 1.924 2.076 0.076 0.082 D1 0.520 0.720 0.020 0.028 E1 0.900 1.100 0.035 0.043 k 0.200MIN 0.008MIN b 0.250 0.350 0.010 0.014 e 0.650TYP 0.026TYP L 0.174 0.326 0.007 0.013