RT9010 RICHTEK | Alldatasheet

Document overview

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Technical content

Features

zzzzz Wide Operating Voltage Ranges : 2.5V to 5.5V zzzzz Low-Noise for RF Application zzzzz No Noise Bypass Capacitor Required zzzzz Fast Response in Line/Load Transient zzzzz TTL-Logic-Controlled Shutdown Input zzzzz Low Temperature Coefficient zzzzz 300mA LDO Outputs zzzzz High 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 Package zzzzz RoHS Compliant and 100% Lead (Pb)-Free

Applications

z CDMA/GSM Cellular Handsets z Battery-Powered Equipment z Laptop, Palmtops, Notebook Computers z Hand-Held Instruments z PCMCIA Cards z Portable Information Appliances Note : RichTek Pb-free and Green products are : \RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. \Suitable for use in SnPb or Pb-free soldering processes. \`100% matte tin (Sn) plating. TSOT-23-6 VIN EN SET VOUT GND POR 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. RT9010- Package Type J6 : TSOT-23-6 Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- cial Standard) Output Voltage 12 : 1.20V 13 : 1.30V 35 : 3.50V 36 : 3.60V 1H : 1.85V 2F : 2.65V 2H : 2.85V

DS9010-03 August 2007www.richtek.com Functional Pin Description Function Block Diagram Pin No. Pin Name Pin Function 1 VOUT Output Voltage. 2 GND Common Ground. 3 POR Power-On Reset Output : Open-drain output. Active low indicates an output under voltage condition on regulator. 4 SET Delay Set Input. Connect external capacitor to GND to set the internal delay. 5 EN Chip Enable (Active High). 6 VIN Supply Input Voltage. Typical Application Circuit EN VOUT RT9010 GND VIN 1uF VOUT 1uF VIN POR Chip Enable 100K SET CDELAY POR EN Current Limit and Thermal Protection MOS Driver + - VOUT Shutdown and Logic Control VIN Error Amplifier VREF GND POR & DelaySET 0.2uA

DS9010-03 August 2007 www.richtek.com

Electrical Characteristics

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) (VIN = VOUT + 1V, VEN = VIN, CIN = COUT = 1μF, TA = 25°C, unless otherwise specified.) Parameter Symbol Test Conditions Min Typ Max Units Input Voltage V IN V IN = 2.5V to 5.5V 2.5 -- 5.5 V IOUT = 150mA, VOUT > 2.8V -- 120 -- mV Dropout Voltage (Note 5) V DROP IOUT = 300mA, VOUT > 2.8V -- 240 -- mV Output Voltage Range V OUT 1.2 -- 3.6 V Output Voltage Accuracy ΔVOUT I OUT = 1mA −2 -- +2 % Line Regulation ΔVLINE VIN = (VOUT + 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 I LIM R LOAD = 1Ω 330 450 700 mA Quiescent Current I Q V EN > 1.5V -- 58 80 μA Shutdown Current I Q_SD V EN < 0.4V -- -- 1 μA Logic-High VIH V IN = 2.5V to 5.5V, Power On 1.5 -- -- EN Threshold Voltage Logic-Low V IL V IN = 2.5V to 5.5V, Shutdown -- -- 0.4 V Output Voltage TC -- 100 -- ppm/ °C Thermal Shutdown T SD -- 170 -- °C Thermal Shutdown Hysteresis ΔTSD -- 40 -- °C To be continued

DS9010-03 August 2007www.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. θ JA 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 =1kHz -- −60 -- dB PSRR Loading=10mA PSRR f =10kHz -- −50 -- dB f =1kHz -- −50 -- dB PSRR Loading=150mA PSRR f =10kHz -- −50 -- dB VTHL Low Threshold, % of nominal VOUT (Flag On) 90 -- -- % Reset Threshold VTHH High Threshold, % of nominal VOUT (Flag Off) -- -- 96 % POR Output Logic Low Voltage V POR_L I L = 250μA -- 0.02 0.1 V POR Leakage Current I POR Flag off −1 0.01 1 μA Set pin current source V SET = 0 0.60 1.25 1.70 μA Set pin threshold POR = high -- 1.4 -- V

DS9010-03 August 2007 www.richtek.com Typical Operating Characteristics 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) RT9010-18 (°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) RT9010-33 (°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) RT9010-33 TJ = 25°C TJ = -40°C TJ = 125°C Quiescent Current vs. Temperature -50 -25 0 25 50 75 100 125 Temperature Quiescent Current (uA) RT9010-33 VIN = VEN = 4.3V CIN = COUT 1uF/X7R (°C) POR Delay 0.01 0.1 100 1000 10000 POR Setting Capacitance (uF) POR Delay Time (ms) RT9010-28 0.0001 0.001 0.01 0.1 1 PSRR -80 -60 -40 -20 10 100 1000 10000 100000 1000000 Frequency (Hz) PSRR (dB) ILOAD = 100mA ILOAD = 10mA ILOAD = 50mA RT9010-15 VIN = 4.3V ± 0.1V CIN = COUT 1uF/X7R 0.01 0.1 1 10k 100k 1000k (Hz)

DS9010-03 August 2007www.richtek.com Load Transient Response Time (250 μs/Div) IOUT (50mA/Div) VOUT (20mV/Div) RT9010-33, ILOAD = 10mA to 50mA VIN = VEN = 4.3V CIN = COUT = 1uF/X7R Load Transient Response Time (250 μs/Div) IOUT (100mA/Div) VOUT (20mV/Div) RT9010-33, ILOAD = 10mA to 100mA VIN = VEN = 4.3V CIN = COUT = 1uF/X7R RT9010-28, Both ILOAD = 100mA VIN = 3.8V to 4.8V Line Transient Response Time (100 μs/Div) VOUT (10mV/Div) 4.8 3.8VIN (V) RT9010-28, Both ILOAD = 50mA VIN = 3.8V to 4.8V Line Transient Response Time (100 μs/Div) 4.8 3.8 VOUT (10mV/Div) VIN (V) RT9010-28, Both ILOAD = 1mA VIN = 3.8V to 4.8V Line Transient Response VIN (V) Time (100 μs/Div) 4.8 3.8 VOUT (10mV/Div) RT9010-28, Both ILOAD = 10mA VIN = 3.8V to 4.8V Line Transient Response VIN (V) Time (100 μs/Div) 4.8 3.8 VOUT (10mV/Div)

DS9010-03 August 2007 www.richtek.com Start Up Time (5 μs/Div) RT9010-28, VIN = 5V IOUT = 50mA (5V/Div) (1V/Div) VEN VOUT Power-On Time (10 μs/Div) RT9010-28 ILOAD = 10mA VEN (5V/Div) VOUT (2V/Div) POR (5V/Div) Noise Time (10ms/Div) RT9010-33, No LOAD VIN = VEN = 4.5V(By battery) CIN = COUT = 1uF/X7R Noise (μV/Div) 150 100 -50 -100 -150 EN Pin Shutdown Response Time (50 μs/Div) RT9010-28, VIN = 5V IOUT = 50mA (5V/Div) (1V/Div) VEN VOUT Time (10ms/Div) RT9010-33, ILOAD = 50mA VIN = VEN = 4.5V(By battery) CIN = COUT = 1uF/X7R Noise (μV/Div) 300 200 100 -100 -200 -300 Noise

better PSRR and line-transient response. 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 θJA is the junction to ambient thermal resistance. Thermal protection limits power dissipation in RT9010.

Figure 3. Derating Curves for RT9010 Packages ambient temperature on the maximum power allowed.

DS9010-03 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 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