RT9361AGE

® RT9361A/B Tiny Package, High Performance, Regulated Charge Pump General Description Features The RT9361A/B is a high performance charge pump DC/DC converter that produces a regulated 4.5V and 5V output. No external inductor is required for operation. The operating voltage range is 2.8V to VOUT. Internal soft-start  circuitry effectively reduces the in-rush current both while start-up and mode change.  The RT9361A/B features very low quiescent current, over current protection and short circuit protection. The RT9361A/B is available in WDFN-6L 2x2, SOT-23-6 and TSOT-23-6 package.     RT9361A/B Package Type E : SOT-23-6 J6 : TSOT-23-6 QW : WDFN-6L 2x2 (W-Type) Lead Plating System P : Pb Free G : Green (Halogen Free and Pb Free) Output Voltage A : 5V B : 4.5V Note : Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Internal Soft Start Function 5V/4.5V Fixed Output Voltage Over Current Protection Function Short Circuit Protection Function RoHS Compliant and 100% Lead (Pb)-Free Applications    Ordering Information Input Voltage Range : 2.8V to VOUT Mobile phone, Smart Phone LED Backlight Camera Flash White LED LCD Display Supply Pin Configurations (TOP VIEW) CP VIN CN 6 5 4 2 3 VOUT GND EN SOT-23-6/TSOT-23-6 CP VIN CN 1 6 2 5 3 7 4 VOUT GND EN WDFN-6L 2x2 Suitable for use in SnPb or Pb-free soldering processes. Copyright © 2015 Richtek Technology Corporation. All rights reserved. DS9361A/B-14 May 2015 is a registered trademark of Richtek Technology Corporation. www.richtek.com 1 ® RT9361A/B Marking Information RT9361AGJ6 RT9361APJ6 AK- : Product Code AK= : Product Code AK=DNN AK-DNN DNN : Date Code RT9361AGE RT9361APE D3- : Product Code D3= : Product Code D3=DNN D3-DNN DNN : Date Code RT9361AGQW AL- : Product Code AL-DNN W : Date Code DNN : Date Code RT9361BPE RT9361BGE D4- : Product Code D4= : Product Code D4=DNN DNN : Date Code RT9361BPJ6 F8 : Product Code F8W DNN : Date Code D4-DNN DNN : Date Code DNN : Date Code Typical Application Circuit CPUMP 6 CP 5 VIN VIN + VOUT 1 RT9361A/B CIN 2.8V to VOUT 4 CN 3 EN RT9361A RT9361B Application Configuration R R R GND 2 Part No. COUT LED LED LED CIN (μF) CPUMP (μF) COUT (μF) IOUT < 60mA @ V IN > 3.2V, 1 or 2.2 0.22 1 or 2.2 IOUT < 110mA @ V IN > 3.2V, 10 1 10 IOUT < 80mA @ V IN > 3.2V, 1 or 2.2 0.22 1 or 2.2 IOUT < 150mA @ V IN > 3.2V, 10 1 10 Copyright © 2015 Richtek Technology Corporation. All rights reserved. DS9361A/B-14 May 2015 is a registered trademark of Richtek Technology Corporation. www.richtek.com 2 RT9361A/B Functional Pin Description Pin Number T/SOT-23-6 1 2 WDFN-6L 2x2 6 Pin Name VOUT Pin Function Output Voltage 5, GND Exposed Pad (7) Ground. The exposed pad must be soldered to a large PCB and connected to GND for maximum power dissipation. 3 4 EN Chip Enable (Active High) 4 3 CN Flying Capacitor Negative Terminal 5 2 VIN Power Input Voltage 6 1 CP Flying Capacitor Positive Terminal Function Block Diagram CP CN VIN VOUT + EN 1MHz OSC - GND Load Disconnect Voltage Reference Copyright © 2015 Richtek Technology Corporation. All rights reserved. DS9361A/B-14 May 2015 VREF Current Bias Short Circuit Protection is a registered trademark of Richtek Technology Corporation. www.richtek.com 3 RT9361A/B Absolute Maximum Ratings         (Note 1) Supply Input Voltage -----------------------------------------------------------------------------------------------------Other I/O Pin Voltages --------------------------------------------------------------------------------------------------Power Dissipation, PD @ TA = 25°C T/SOT-23-6 -----------------------------------------------------------------------------------------------------------------WDFN-6L 2x2 -------------------------------------------------------------------------------------------------------------Package Thermal Resistance (Note 2) T/SOT-23-6, θJA -----------------------------------------------------------------------------------------------------------WDFN-6L 2x2, θJA --------------------------------------------------------------------------------------------------------Junction Temperature ----------------------------------------------------------------------------------------------------Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------Storage Temperature Range -------------------------------------------------------------------------------------------ESD Susceptibility (Note 3) HBM (Human Body Mode) ---------------------------------------------------------------------------------------------MM (Machine Mode) ------------------------------------------------------------------------------------------------------ Recommended Operating Conditions   −0.3V to 6V −0.3V to 6V 0.4W 0.606W 250°C/W 165°C/W 150°C 260°C −65°C to 150°C 2kV 200V (Note 4) Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C Electrical Characteristics (VIN = 3.7V, TA = 25° C, unless otherwise specified) Parameter Operation Voltage Range Output Voltage Symbol VIN VOUT Quiescent Current IQ Maximum Output Current IOUT OCP IOCP Test Conditions Min Typ Max Unit VOUT = 5V 2.8 -- VOUT V RT9361A , VIN = 3.17V to 3.43V, IOUT  55mA 4.83 5 5.2 V RT9361A , VIN > 3.2V, IOUT < 110mA 4.8 5 5.2 V RT9361B , VIN > 3.2V, IOUT < 150mA 4.32 4.5 4.68 V -- 2 4 mA RT9361A , VIN > 3.2V, CPUMP = 1μF 110 -- -- RT9361B , VIN > 3.2V, CPUMP = 1μF 150 -- -- 250 350 500 mA -- 60 90 mA IOUT = 60mA, COUT = 2.2μF -- 30 -- mV VIN = 4.5V, VEN < 0.4V -- 0.1 1 μA IOUT = 0 Short Circuit Current Output Ripple mA Shut Down Current ISHDN Operation Frequency FOSC 0.8 1 1.3 MHz Digital Input High Level VIH 1.5 -- -- V Digital Input Low Level VIL -- -- 0.4 V Copyright © 2015 Richtek Technology Corporation. All rights reserved. www.richtek.com 4 is a registered trademark of Richtek Technology Corporation. DS9361A/B-14 May 2015 ® RT9361A/B Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and 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 may affect device reliability. Note 2. θJA is measured at TA = 25°C on a low effective thermal conductivity single-layer test board per JEDEC 51-3. Note 3. Devices are ESD sensitive. Handling precaution is recommended. Note 4. The device is not guaranteed to function outside its operating conditions. Copyright © 2015 Richtek Technology Corporation. All rights reserved. DS9361A/B-14 May 2015 is a registered trademark of Richtek Technology Corporation. www.richtek.com 5 ® RT9361A/B Typical Operating Characteristics (For RT9361A, CIN = COUT = 2.2μF, CPUMP = 0.22μF, TA = 25°C, unless otherwise specified ) Output Voltage vs. Output Current Quiescent Current vs. Input Voltage 1.7 5.1 VIN VIN VIN VIN 4.9 4.8 = 3.2V = 3.7V = 4.3V = 5V Quiescent Current (mA) Output Voltage (V) 5 4.7 4.6 4.5 1.6 TA = 85°C 1.5 TA = 25°C 1.4 TA = -20°C 1.3 1.2 TA = -40°C 1.1 1 4.4 10 20 30 40 50 60 70 2.8 80 3 3.2 3.4 3.6 3.8 Output Current (mA) 4 4.2 4.4 4.6 4.8 5 Input Voltage (V) Output Voltage vs. Input Voltage Output Voltage vs. Input Voltage 5.1 5.08 TA = 85°C 5 5 Output Voltage (V) Output Voltage (V) 5.04 TA = 25°C 4.96 TA = -40°C 4.92 4.88 IOUT = 10mA IOUT = 20mA IOUT = 30mA IOUT = 40mA IOUT = 50mA IOUT = 60mA IOUT = 70mA IOUT = 80mA 4.9 4.8 4.7 4.6 4.84 IOUT = 60mA 4.8 2.75 3 3.25 3.5 3.75 4 4.25 4.5 4.75 5 4.5 2.75 Input Voltage (V) Operation Frequency (MHz) Output Voltage (V) 3.75 4 4.25 4.5 4.75 5 1.4 IOUT = 0mA 5.065 5.06 5.055 3.5 Operation Frequency vs. Temperature Output Voltage vs. Temperature 5.07 3.25 Input Voltage (V) 5.08 5.075 3 IOUT = 60mA 5.05 5.045 5.04 5.035 1.3 IOUT = 60mA 1.2 1.1 IOUT = 0mA 1 0.9 0.8 5.03 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 Temperature (°C) Copyright © 2015 Richtek Technology Corporation. All rights reserved. DS9361A/B-14 May 2015 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 Temperature (°C) is a registered trademark of Richtek Technology Corporation. www.richtek.com 6 RT9361A/B Efficiency vs. Input Voltage Efficiency vs. Output Curent 0.85 85 1001 VIN = 3V 0.8 80 0.9 90 VIN = 3.4V 0.7 70 0.65 65 0.6 60 VIN = 4.2V 0.55 55 0.8 80 Efficiency (%) Efficiency (%) 0.75 75 0.7 70 0.6 60 0.5 50 50 0.5 0.45 45 IOUT IOUT IOUT IOUT IOUT IOUT = = = = = = 10mA 20mA 30mA 40mA 50mA 60mA 40 0.4 0.4 40 10 15 20 25 30 35 40 45 50 55 60 2.75 3 3.25 3.5 Output Curent (mA) 4.75 5 4.75 5 1.3 1.3 1.2 TA = -40°C 1.2 VIL (V) VIH (V) 4.5 1.4 1.4 TA = 25°C 1.1 TA = -40°C 1.1 1 TA = 85°C 1 TA = 25°C TA = 85°C 0.9 0.9 0.8 2.75 3 3.25 3.5 3.75 4 4.25 4.5 4.75 5 0.8 2.75 3 3.25 3.5 3.75 4 4.25 Input Voltage (V) Input Voltage (V) Inrush Current Inrush Current VIN (2V/Div) (2V/Div) 4.5 (2V/Div) (2V/Div) VOUT I IN 4.25 VIL vs. Input Voltage VIH vs. Input Voltage EN 4 Input Voltage (V) 1.5 VIN 3.75 VOUT (2V/Div) (2V/Div) EN (500mA/Div) (500mA/Div) I IN VIN = 2.8V, IOUT = 60mA Time (40μs/Div) Copyright © 2015 Richtek Technology Corporation. All rights reserved. DS9361A/B-14 May 2015 VIN = 5V, IOUT = 60mA Time (40μs/Div) is a registered trademark of Richtek Technology Corporation. www.richtek.com 7 RT9361A/B Normal Operation VIN Normal Operation VIN (1V/Div) VOUT VOUT (2V/Div) (2V/Div) (2V/Div) (2V/Div) (2V/Div) CN CN IOUT (50mA/Div) (50mA/Div) VIN = 2.8V, IOU T = 60mA VOUT Time (400ns/Div) Time (400ns/Div) Dimming Operation Dimming Operation (2V/Div) (2V/Div) (2V/Div) PWM I IN (50mA/Div) VIN = 3.7V Time (40μs/Div) Refer to Application Informatiom “Figure 1” VIN VIN = 5V, IOUT = 60mA (2V/Div) VIN (2V/Div) VOUT (2V/Div) PWM I IN (50mA/Div) VIN = 3.7V Time (10ms/Div) Maximum Output Current (mA) Maximum Output Current vs. Input Voltage 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 TA = -40°C TA = -20°C TA = 25°C TA = 85°C 2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5 Input Voltage (V) Copyright © 2015 Richtek Technology Corporation. All rights reserved. www.richtek.com 8 is a registered trademark of Richtek Technology Corporation. DS9361A/B-14 May 2015 Refer to Application Informatiom “Figure 1” IOUT RT9361A/B Application Information Capacitor Selection CPUMP 0.22µF Careful selection of the three external capacitors CIN, COUT and CPUMP is very important because they will affect rampup time, output ripple and transient performance. Optimum performance will be obtained when low ESR (