RT9011 RICHTEK | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 12

Technical content

Features

z Wide Operating Voltage Ranges : 2.5V to 5.5V z Low-Noise for RF Application z No Noise Bypass Capacitor Required z Fast Response in Line/Load Transient z TTL-Logic-Controlled Shutdown Input z Low Temperature Coefficient zzzzz Dual LDO Outputs (300mA/300mA) zzzzz Ultra-low Quiescent Current 27μμμμμA/LDO zzzzz High Output Accuracy 2% zzzzz Short Circuit Protection zzzzz Thermal Shutdown Protection zzzzz Current Limit Protection zzzzz Short Circuit Thermal Folded Back Protection zzzzz Tiny TSOT-23-6 and 8-Lead WDFN Package zzzzz RoHS Compliant and 100% Lead (Pb)-Free

Applications

zzzzz CDMA/GSM Cellular Handsets zzzzz Battery-Powered Equipment zzzzz Laptop, Palmtops, Notebook Computers zzzzz Hand-Held Instruments zzzzz PCMCIA Cards zzzzz Portable Information Appliances VOUT2 GND EN2 VIN EN1VOUT1 WDFN-8L 2x2 Note : There is no pin1 indicator on top mark for TSOT-23-6 type, and pin 1 will be lower left pin when reading top mark from left to right. RT9011- Package Type J6 : TSOT-23-6 QW : WDFN-8L 2x2 (W-Type) Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- cial Standard) Output Voltage : VOUT1/VOUT2 BM : 1.30V/2.80V VIN EN1 VOUT1 VOUT2 NCEN2 NC GND GND

DS9011-05 August 2007www.richtek.com Functional Pin Description Pin No. RT9011-□□PQW RT9011- □□PJ6 Pin Name Pin Function 1 5 VIN Supply Input. 2 4 EN1 Chip Enable1 (Active High). 3 3 EN2 Chip Enable2 (Active High). 5 2 GND Common Ground. 7 1 VOUT2 Channel 2 Output Voltage. 8 6 VOUT1 Channel 1 Output Voltage. 4, 6 -- NC No Internal Connection. Exposed Pad (9) -- GND The exposed pad must be soldered to a large PCB and connected to GND for maximum power dissipation. Typical Application Circuit Code C B F W G D Y H E J K Code T L M N V P Q R S -- -- Available Voltage Version EN1 EN2 VOUT2 VOUT1 RT9011 GND VIN 1uF VOUT1 1uF VOUT2 1uF VIN Chip Enable CIN COUT1 COUT2

DS9011-05 August 2007 www.richtek.com Function Block Diagram EN1 Current-Limit and Thermal Protection MOS Driver + - VOUT1 Shutdown and Logic Control VIN Error Amplifier VREF GND EN2 Current-Limit and Thermal Protection MOS Driver + - VOUT2 Shutdown and Logic Control Error Amplifier VREF GND 0.2uA 0.2uA

DS9011-05 August 2007www.richtek.com

Electrical Characteristics

Parameter Symbol Test Conditions Min Typ Max Units Input Voltage VIN V IN = 2.5V to 5.5V 2.5 -- 5.5 V Dropout Voltage (Note 5) VDROP I OUT = 300mA -- 240 330 mV Output voltage range VOUT 1.2 -- 3.6 V VOUT Accuracy ΔV IOUT = 1mA -2 -- +2 % Line Regulation ΔVLINE VIN = (V OUT + 0.3V) to 5.5V or VIN > 2.5V, whichever is larger -- -- 0.2 %/V Load Regulation ΔVLOAD 1mA < I OUT< 300mA -- -- 0.6 % Current Limit RLOAD = 1Ω 330 450 700 mA Quiescent Current IQ V EN > 1.5V -- 58 80 μA Shutdown Current IQ_SD V EN < 0.4V -- -- 1 μA VIH V IN = 2.5V to 5.5V, Power On 1.5 -- -- EN Threshold VIL V IN = 2.5V to 5.5V, Shutdown -- -- 0.4 V Output Voltage TC -- 100 -- ppm/°C Thermal Shutdown TSD -- 170 -- °C Thermal Shutdown Hysteresis ΔTSD -- 40 -- °C (VIN = VOUT + 1V, VEN = VIN, CIN = COUT = 1μF, TA = 25°C, unless otherwise specified.) To be continued Recommended Operating Conditions (Note 3) Absolute Maximum Ratings (Note 1) z Power Dissipation, PD @ TA = 25°C z Package Thermal Resistance (Note 4) z ESD Susceptibility (Note 2)

DS9011-05 August 2007 www.richtek.com Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. Note 2. Devices are ESD sensitive. Handling precaution recommended. Note 3. The device is not guaranteed to function outside its operating conditions. Note 4. θJA is measured in the natural convection at T A = 25 °C on a low effective thermal conductivity test board of JEDEC 51-3 thermal measurement standard. Note 5. The dropout voltage is defined as V IN -VOUT, which is measured when V OUT is VOUT(NORMAL) − 100mV. Parameter Symbol Test Conditions Min Typ Max Units f =100Hz -- 65 -- dB f =1kHz -- 60 -- dB PSRR ILOAD = 10mA PSRR f =10kHz -- 50 -- dB f =100Hz -- 65 -- dB f =1kHz -- 50 -- dB PSRR ILOAD = 150mA PSRR f =10kHz -- 50 -- dB

DS9011-05 August 2007www.richtek.com Typical Operating Characteristics Quiescent Current vs. Temperature -50 -25 0 25 50 75 100 125 Temperature Quiescent Current (uA) RT9011-GS VIN = VEN = 4.3V CIN = COUT1 = COUT2 = 1uF/X7R (°C) Dropout Voltage vs. Load Current 100 150 200 250 300 350 0 50 100 150 200 250 300 Load Current (mA) Dropout Voltage (mV) RT9011-GS, VOUT2 TJ = 25°C TJ = -40°C TJ = 125°C Power-On Time (10 μs/Div) RT9011-FM Both ILOAD = 10mA VEN (5V/Div) VOUT2 (2V/Div) VOUT1 (1V/Div) POR (5V/Div) PSRR -80 -60 -40 -20 10 100 1000 10000 100000 1000000 Frequency (Hz) PSRR (dB) ILOAD = 100mA ILOAD = 10mA ILOAD = 50mA RT9011-FM, VOUT1 VIN = 4.3V ± 0.1V CIN = COUT1 = COUT2 = 1uF/X7R 0.01 0.1 1 10k 100k 1000k (Hz) Output Voltage vs. Temperature 1.7 1.75 1.8 1.85 1.9 -50 -25 0 25 50 75 100 125 Temperature Output Voltage (V) RT9011-GS, VOUT1 (°C) Output Voltage vs. Temperature 3.2 3.25 3.3 3.35 3.4 -50 -25 0 25 50 75 100 125 Temperature Output Voltage (V) RT9011-GS, VOUT2 (°C)

DS9011-05 August 2007 www.richtek.com Load Transient Response Time (250 μs/Div) IOUT (100mA/Div) VOUT2 (20mV/Div) VOUT1 (20mV/Div) RT9011-GS, ILOAD = 10mA to 100mA VIN = VEN = 4.3V CIN = COUT1 = COUT2 = 1uF/X7R RT9011-GS, Both ILOAD = 100mA VIN = 3.8V to 4.8V Line Transient Response VIN (V) Time (100 μs/Div) VOUT1 (10mV/Div) 4.8 3.8 VOUT2 (10mV/Div) RT9011-GS, Both ILOAD = 10mA VIN = 3.8V to 4.8V Line Transient Response VIN (V) VOUT1 (10mV/Div) 4.8 3.8 VOUT2 (10mV/Div) Time (100 μs/Div) RT9011-GS, Both ILOAD = 1mA VIN = 3.8V to 4.8V Line Transient Response VIN (V) Time (100 μs/Div) VOUT1 (10mV/Div) 4.8 3.8 VOUT2 (10mV/Div) RT9011-GS, Both ILOAD = 50mA VIN = 3.8V to 4.8V Line Transient Response VIN (V) Time (100 μs/Div) VOUT1 (10mV/Div) 4.8 3.8 VOUT2 (10mV/Div) Load Transient Response Time (250 μs/Div) IOUT (50mA/Div) VOUT2 (20mV/Div) VOUT1 (20mV/Div) RT9011-GS, ILOAD = 10mA to 50mA VIN = VEN = 4.3V CIN = COUT1 = COUT2 = 1uF/X7R

DS9011-05 August 2007www.richtek.com EN Pin Shutdown Response Time (50 μs/Div) RT9011-FM, VIN = 5V IOUT1 = IOUT2 = 50mA (5V/Div) (1V/Div) VEN VOUT1 VOUT2 Start Up Time (5 μs/Div) RT9011-FM, VIN = 5V IOUT1 = IOUT2 = 50mA (5V/Div) (1V/Div) VEN VOUT1 VOUT2 Noise Time (10ms/Div) RT9011-GS, ILOAD = 50mA VIN = VEN = 4.5V(By battery) CIN = COUT1 = COUT2 = 1uF/X7R Noise (μV/Div) 300 200 100 -100 -200 -300 Noise Time (10ms/Div) RT9011-GS, No LOAD VIN = VEN = 4.5V(By battery) CIN = COUT1 = COUT2 = 1uF/X7R Noise (μV/Div) 150 100 -50 -100 -150

input pin of the IC and returned to a clean analog ground. and returned to a clean analog ground. Figure 1. Stable Cout ESR Range

170 C° 110 C°

80 C°IC Temperature

Figure 2. Short Circuit Thermal Folded Back Protection Thermal protection limits power dissipation in RT9011. short circuit occurs (VOUT < 0.4V) as shown in Figure 2. θJA is the junction to ambient thermal resistance.

Figure 3. Derating Curves for RT9011 Packages ambient temperature on the maximum power allowed.

DS9011-05 August 2007 www.richtek.com Outline Dimension TSOT-23-6 Surface Mount Package Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 0.700 1.000 0.028 0.039 A1 0.000 0.100 0.000 0.004 B 1.397 1.803 0.055 0.071 b 0.300 0.559 0.012 0.022 C 2.591 3.000 0.102 0.118 D 2.692 3.099 0.106 0.122 e 0.838 1.041 0.033 0.041 H 0.080 0.254 0.003 0.010 L 0.300 0.610 0.012 0.024 A e b B D C H L

DS9011-05 August 2007www.richtek.com Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Richtek Technology Corporation Taipei Office (Marketing) 8F, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek.com W-Type 8L DFN 2x2 Package Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 0.700 0.800 0.028 0.031 A1 0.000 0.050 0.000 0.002 A3 0.175 0.250 0.007 0.010 b 0.200 0.300 0.008 0.012 D 1.950 2.050 0.077 0.081 D2 1.000 1.250 0.039 0.049 E 1.950 2.050 0.077 0.081 E2 0.400 0.650 0.016 0.026 e 0.500 0.020 L 0.300 0.400 0.012 0.016 1 122 Note : The configuration of the Pin #1 identifier is optional, but must be located within the zone indicated. DETAIL A Pin #1 ID and Tie Bar Mark Options D E A L be SEE DETAIL A