RT5713 RICHTEK | Alldatasheet
Document overview
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Technical content
Features
⚫ Input Voltage Range : 2.2V to 5.5V ⚫ Support Fixed Output Voltage 0.525V to 4V ⚫ 2 Level Output Voltage Selection by VSEL Pin ⚫ Typ. 360nA Quiescent Current ⚫ PSM Operation ⚫ Internal Compensation ⚫ Output Voltage Discharge ⚫ Over-Current Protection ⚫ Over-Temperature Protection ⚫ Output Current ⚫ RT5713 400mA, Peak to 0.5A ⚫ RT5714 600mA, Peak to 1A ⚫ UVLO Protection ⚫ Online VOUT Dynamically-Voltage-Scaling ⚫ Tiny, 6-Pin, 0.35mm Pitch WL-CSP Package ⚫ Supports < 7mm2 Solution Size
Applications
⚫ Hand-Held Devices ⚫ Portable Information ⚫ Battery Powered Equipment ⚫ Wearable Devices ⚫ Internet of Thing ⚫ Smart Watch Simplified Application Circuit VIN GND VIN RT5713/14 LX EN VOUT CIN COUT VOUT VSEL VIN or GND
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5713/14-03 March 2023
Ordering Information
QW : WDFN-6L 2x2 WSC : WL-CSP-6B 1.415x0.885 (BSC) Lead Plating System G : Green (Halogen Free and Pb Free ) (For WDFN-6L 2x2 Only) Output Voltage2 Setting (VSEL = 1) Output Voltage1 Setting (VSEL = 0) Current Limit 13 : 0.78A 14 : 1.2A Pin 1 Orientation (2) : Quadrant 2, Follow EIA -481-D (Empty means Pin1 orientation is Quadrant 1) Note : Richtek products are : RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area. Pin Configuration (TOP VIEW) LX GNDVSEL EN VIN VOUT A2 A3 B3B1 VIN LX EN VOUT VSELGND GND WL-CSP-6B 1.415x0.885 (BSC) WDFN-6L 2x2
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5713/14-03 March 2023 www.richtek.com Functional Pin Description Pin No. Pin Name Pin Function WL-CSP-6B 1.415x0.885 (BSC) WDFN-6L 2x2 A1 1 VIN Power input. The input voltage range is from 2.2V to 5.5V. A minimum of 4.7F (RT5713) and 10F (RT5714) ceramic capacitor should be connected to this pin with the shortest path. A2 2 LX This pin is the connection between two build-in switches in the chip, which should be connected to the external inductor. The inductor should be connected to this pin with the shortest path. 7 (Exposed Pad) GND Device ground pin. This pin should be connected to input and output capacitors with the shortest path. The exposed pad must be soldered to a large PCB and connected to GND for maximum power dissipation. B1 6 EN Chip enable input pin. High level voltage enables the device while low level voltage turns the device off. This pin must be terminated. B2 5 VOUT Output voltage feedback pin. This pin should be connected close to the output capacitor terminal for better voltage regulation. A minimum of use two 10F/6.3V/X5R/0402 ceramic capacitors should be connected to this pin with the shortest path. B3 4 VSEL Output voltage selection pin. This pin must be terminated. When VSEL pin tie to GND, VOUT level is follow Output-1. When VSEL pin tie to VIN, VOUT level is follow Output-2.
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5713/14-03 March 2023 Output Voltage Table The RT5713/14 serves different output voltage as following bellow table. The part number and the output voltage is defined in the Ordering Information. Output-1 (VSEL = 0) Code Output-2 (VSEL = 1) Code 0.525V A 0.525V A 0.55V B 0.55V B 0.58V C 0.58V C 0.6V D 0.6V D 0.625V E 0.625V E 0.65V F 0.65V F 0.675V G 0.675V G 0.7V H 0.7V H 0.75V J 0.75V J 0.8V K 0.8V K 0.85V L 0.85V L 0.9V M 0.9V M 0.95V N 0.95V N 1V P 1V P 1.05V Q 1.05V Q 1.1V R 1.1V R 1.15V S 1.15V S 1.2V T 1.2V T 1.3V U 1.3V U 1.4V V 1.4V V 1.5V W 1.5V W 1.6V Y 1.6V Y 1.7V Z 1.7V Z 1.8V 1 1.8V 1 1.9V 2 1.9V 2 2V 3 2V 3 2.1V 4 2.1V 4 2.5V 5 2.5V 5 2.75V 6 2.75V 6 3V 7 3V 7 3.3V 8 3.3V 8 4V 9 4V 9
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5713/14-03 March 2023 www.richtek.com Functional Block Diagram Gate Drive PSM/PWM Control VREF Digital Control LX GND OSC OTP UVLO OCP VIN EN FB Soft-start AMP VREF Fast Discharge VOUT EN VOUT VSEL Operation The RT5713/14 is a hysteretic constant on time (HCOT) switching buck converter. The RT5713/14 provides Over-Temperature Protection (OTP) and Over -Current Protection (OCP) mechanisms to p revent the device from damage with abnormal operations. When the EN voltage is logic low, the IC will be shut down with low input supply current less than 1A. Enable The device can be enabled or disabled by the EN pin. When the EN pin is higher than the t hreshold of logic - high IC goes to normal operation. EN pin High transfer Low into shutdown mode, the converter stops switching, internal control circuitry is turned off and trigger discharge function. That discharge function will close after count 10ms (ty p.). If systems need EN toggle operation that EN turn off time must larger than 100 s for internal circuit reset time. UVLO Protection To protect the chip from operating at insufficient supply voltage, the UVLO is needed. When the input voltage is lower than the UVLO falling threshold voltage, the device will be lockout. 100% Duty Cycle Operation The converter enters 100% duty cycle operation once the input voltage decrease and the difference voltage between input and output is lower than V TH_100-. The output voltage follows the input voltage minus the voltage drop across the internal P_MOSFET and the inductor. Once the input voltage increases and trips the 100% mode exit threshold, V TH_100+, the converter backs to normal switching again. See Figure 1.
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5713/14-03 March 2023 www.richtek.com Absolute Maximum Ratings (Note 1) ⚫ Power Dissipation, PD @ TA = 25C ⚫ Package Thermal Resistance (Note 2) ⚫ ESD Susceptibility (Note 3) Recommended Operating Conditions (Note 4)
Electrical Characteristics
(VIN = 3.6V, CIN = 18F, COUT = 44F, L = 1.5H, typical values are at TJ = 25C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit BUCK Regulator Under-Voltage Lockout Rising Threshold VUVLOR VIN rising -- 2 2.15 V Under-Voltage Lockout Hysteresis VUVLO_HYS -- 0.1 0.4 V VOUT Voltage Accuracy VOUT_ACC10 VOUT = 1.8V, IOUT = 10mA −2.5 -- 2.5 VOUT_ACC100 VOUT = 1.8V, IOUT = 100mA −2 -- 2 Input Quiescent Current IQ_Non-SW VOUT = 1.8V, IOUT = 0A, EN = V IN, non-switching -- 360 800 nA IQSW VOUT = 1.8V, IOUT = 0A, EN = V IN, switching -- 460 1200 Shutdown Current ISHDN EN = GND -- 0.2 1 A Switching Frequency fSW VOUT = 1.8V, CCM mode -- 1.2 -- MHz UGATE Current Limit ICL_UG VIN = 3.6V, VOUT = 1.8V RT5713 0.58 0.78 0.98 A RT5714 1 1.2 1.4 LGATE Current Limit ICL_LG VIN = 3.6V, VOUT = 1.8V RT5713 0.48 0.68 0.88 A RT5714 1 1.2 1.4
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5713/14-03 March 2023 Parameter Symbol Test Conditions Min Typ Max Unit UGATE RON RON_UG IOUT = 50mA -- 300 -- m LGATE RON RON_LG IOUT = 50mA -- 170 -- m Output Discharge Resistor RDIS EN = GND, IOUT = −10mA -- 10 -- VOUT Pin Input Leakage IVOUT VOUT = 1.8V, EN = VIN -- 100 -- nA VOUT Minimum Off Time tOFF_MIN -- 80 -- ns Line Regulation VOUT_LineReg VOUT = 1.8V, IOUT = 100mA, VIN = 2.2V to 5.5V -- 1 -- % Load Regulation VOUT_LoadReg VOUT = 1.8V, including PFM operation -- 2 -- % Over-Temperature Protection TOTP -- 150 -- °C Over-Temperature Protection Hysteresis TOTP_HYS -- 20 -- °C Timing Regulator Start Up Delay Time tSS_EN IOUT = 0mA, EN = GND to VIN, VOUT starts rising -- 0.1 -- ms Regulator Soft-Start Time tSS VOUT = 1.8V, IOUT = 10mA, EN = VIN -- 0.7 -- ms Logic Input (EN and VSEL) Input High Threshold VIH VIN = 2.2V to 5.5V 1.2 -- -- V Input Low Threshold VIL VIN = 2.2V to 5.5V -- -- 0.4 V Input Pin Bias Current IIN -- 10 -- nA Note 1. Stresses beyond those listed under “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. JA is measured under natural convection (still air) at TA = 25°C with the component mounted on a high effective-thermal- conductivity four-layer test board on a JEDEC 51 -7 thermal measurement standard. JC is measured at the case top of the package. Note 3. Devices are ESD sensitive. Handling precautions are recommended. Note 4. The device is not guaranteed to function outside its operating conditions.
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5713/14-03 March 2023 www.richtek.com Typical Application Circuit RT5713 2.2V to 5.5V VIN LX EN VOUT Main System VIN CIN 4.7μF 2.2μH COUT 10μF GND RT5713 VSEL VIN or GND Recommended components information for the RT5713 as below table : Reference Part Number Description Package Manufacturer CIN GRM155R60J475ME47 4.7F/6.3V/X5R 0402 Murata COUT GRM155R60J106ME15 10F/6.3V/X5R 0402 Murata L1 DFE201610E-2R2M=P2 2.2H 2016 Murata RT5714 2.2V to 5.5V VIN LX EN VOUT Main System VIN CIN 10μF 2.2μH COUT 10μF GND RT5714 VSEL VIN or GND Recommended components information for the RT5714 as below table : Reference Part Number Description Package Manufacturer CIN, COUT GRM155R60J106ME15 10F/6.3V/X5R 0402 Murata L1 1239AS-H-2R2M 2.2H 2520 Murata
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5713/14-03 March 2023 Typical Operating Characteristics Efficiency vs. Output Current 100 0.001 0.010 0.100 1.000 Output Current (A) Efficnency (%) TA = 25°C, VOUT = 0.58V VIN = 2.2V VIN = 3.7V VIN = 5.5V Load Regulation vs. Output Current 0.574 0.576 0.578 0.580 0.582 0.584 0.586 0.588 0.590 0.001 0.010 0.100 1.000 Output Current (A) Load Regulation (V) TA = 25°C, VOUT = 0.58V VIN = 2.2V VIN = 3.7V VIN = 5.5V Output Voltage Ripple vs. Output Current 0.001 0.010 0.100 1.000 Output Current (A) Output Voltage Ripple(mV) TA = 25°C, VOUT = 0.58V VIN = 2.2V VIN = 3.7V VIN = 5.5V Quiescent Current vs. Input Voltage 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Input Voltage (V) Quiescent Current (μA) 1 Switching, TA = 25°C, VOUT = 0.58V Shut Down Current vs. Input Voltage 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Input Voltage (V) Shut Down Current (μA) 1 EN = GND, TA = 25°C, VOUT = 0.58V Output Voltage Error vs. Temperature 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -50 -25 0 25 50 75 100 125 Temperature (°C) Output Voltage Error (%) VIN = 3.6V, VOUT = 0.58V
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5713/14-03 March 2023 www.richtek.com VIN = 3.6V, VOUT = 0.58V, IOUT = 0.05A VIN (2V/Div) VLX (2V/Div) Time (4s/Div) PSM Mode Operation ILX (500mV/Div) VOUT (20mV/Div) Time (1s/Div) PWM Mode Operation VIN = 3.6V, VOUT = 0.58V, IOUT = 0.4A VIN (2V/Div) VLX (2V/Div) ILX (500mV/Div) VOUT (20mV/Div) Time (500s/Div) Power On with Light Load VIN = 3.6V, VOUT = 0.58V, IOUT about = 0.03A (EN enable) VIN (5V/Div) VLX (5V/Div) ILX (500mV/Div) VOUT (1V/Div) Time (500s/Div) Power On with Heavy Load VIN = 3.6V, VOUT = 0.58V, IOUT about = 0.4A (EN enable) VIN (5V/Div) VLX (5V/Div) ILX (500mV/Div) VOUT (1V/Div) Time (100s/Div) Load Transient Response VOUT (20mV/Div) ILOAD (200mA/Div) VIN = 3.6V, VOUT = 0.58V, IOUT = 0.05A to 0.5A to 0.05A, tR = tF =1s VOUT (20mV/Div) Time (500s/Div) Load Transient Response VIN = 3.6V, VOUT = 0.58V, IOUT = 0.01A to 0.03A to 0.01A, tR = tF =1s ILOAD (20mA/Div)
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5713/14-03 March 2023
Application Information
Richtek’s component specification does not include the following information in the Application Information section. Thereby no warranty is given regarding its validity and accuracy. Customers should take responsibility to verify their own designs and to ensure the functional suitability of their components and systems. The RT5713/14 is a synchronous low voltage step - down converter that can support the input voltage range from 2.2V to 5.5V and the output current can be up to 400mA, peak to 0.5A (RT5713) / 600mA, peak to 1A (RT5714). Internal compensation are integrated to minimize external component count. Protection features include over -current protection, under -voltage protection and over-temperature protection. Inductor Selection The recommended power inductor is 2.2 H and inductor saturation current rating choose follow overcurrent protection design c onsideration. In applications, it needs to select an inductor with the low DCR to provide good performance and efficiency. CIN and COUT Selection The input capacitance, C IN, is needed to filter the trapezoidal current at the source of the top MOSFET. To pr event large ripple voltage, a low ESR input capacitor sized for the maximum RMS current should be used. RMS current is given by : IRMS = IOUT(MAX) × VOUT VIN × √ VIN VOUT - 1 This formula has a maximum at V IN = 2V OUT, where IRMS = IOUT / 2. This simple worst-case condition is commonly used for design because even significant deviations do not offer much relief. To choose a capacitor rated at a higher temperature than required. Several capacitors may also be paralleled to meet size or height requirements in the design. The selection of C OUT is determined by the Effective Series Resistance (ESR) that is required to minimize voltage ripple and load step transients, as well as the amount of bulk capacitance that is necessary to ensure that the control loop is stable. Loop stability can be checked by viewing the load transient response as described in a later section. The output ripple, VOUT, is determined by: VOUT ≤ IL (ESR + 1 8 × fSW × COUT Thermal Considerations The junction temperature should never exceed the absolute maximum junction temperature T J(MAX), listed under Absolute Maximum Ratings, to avoid permanent damage to the device. The maximum allowable power dissipation depends on the thermal resistance of the IC package, the PCB layout, the rate of surrounding airflow, and the difference between the junction and ambient temperatures. The maximum power dissipation can be calculated using the following formula : PD(MAX) = (TJ(MAX) - TA) / JA where TJ(MAX) is the maximum junction temperature, TA is the ambient temperature, and JA is the junction -to- ambient thermal resistance. For continuous operation, the maximum operating junction temperature indicated under Recommended Operating Conditions is 125°C. The junction-to-ambient thermal resistance, JA, is highly package dependent. For a WL-CSP-6B 1.415x0.885 (BSC) package, the thermal resistance, JA, is 125.6°C/W on a standard JEDEC 51 -7 high effective -thermal-conductivity four - layer test board. For a WDFN-6L 2x2 package, the thermal resistance, JA, is 47.5°C/W on a standard JEDEC 51 -7 high effective -thermal-conductivity four - layer test board. The maximum power dissipation at TA = 25°C can be calculated as below : PD(MAX) = (125°C - 25°C) / (125.6°C/W) = 0.79W for a WL-CSP-6B 1.415x0.885 (BSC) package. PD(MAX) = (125°C - 25°C) / (47.5 °C/W) = 2.1W for a WDFN-6L 2x2 package.
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5713/14-03 March 2023 Outline Dimension Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 0.400 0.500 0.016 0.020 A1 0.160 0.220 0.006 0.009 b 0.240 0.300 0.009 0.012 E 1.390 1.440 0.055 0.057 E1 0.800 0.031 D 0.860 0.910 0.034 0.036 D1 0.400 0.016 e 0.400 0.016 6B WL-CSP 1.415x0.885 Package (BSC)
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5713/14-03 March 2023 www.richtek.com Symbol Dimensions In Millimeters Dimensions In Inches 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 0.350 0.008 0.014 D 1.950 2.050 0.077 0.081 D2 1.000 1.450 0.039 0.057 E 1.950 2.050 0.077 0.081 E2 0.500 0.850 0.020 0.033 e 0.650 0.026 L 0.300 0.400 0.012 0.016 W-Type 6L DFN 2x2 Package
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5713/14-03 March 2023 Footprint Information Package Number of Pin Type Footprint Dimension (mm) Tolerance e A B WL-CSP1.415x0.885-6(BSC) 6 NSMD 0.400 0.245 0.345 ±0.025 SMD 0.275 0.245
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5713/14-03 March 2023 www.richtek.com Package Number of Pin Footprint Dimension (mm) Tolerance P A B C D Sx Sy M
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5713/14-03 March 2023 Packing Information Tape and Reel Data (WL-CSP 1.415x0.885) Package Type Tape Size (W1) (mm) Pocket Pitch (P) (mm) Reel Size (A) Units per Reel Trailer (mm) Leader (mm) Reel Width (W2) Min./Max. (mm) (mm) (in) WL-CSP 1.415x0.885 8 4 180 7 3,000 160 600 8.4/9.9 Tape Size W1 P B F ØJ H C, D and K are determined by component size. The clearance between the components and the cavity is as follows: - For 8mm carrier tape: 0.5mm max.
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5713/14-03 March 2023 www.richtek.com Tape and Reel Packing (WL-CSP 1.415x0.885) Step Photo/Description Step Photo/Description Reel 7” 12 inner boxes per outer box Packing by Anti-Static Bag Outer box Carton A 3 reels per inner box Box A Container Package Reel Box Carton Size Units Item Size(cm) Reels Units Item Size(cm) Boxes Unit WL-CSP 1.415x0.885 7” 3,000 Box E 18.6*18.6*3.5 1 3,000 For Combined or Partial Reel.
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5713/14-03 March 2023 Tape and Reel Data (QFN & DFN 2x2) Package Type Tape Size (W1) (mm) Pocket Pitch (P) (mm) Reel Size (A) Units per Reel Trailer (mm) Leader (mm) Reel Width (W2) Min./Max. (mm) (mm) (in) QFN/DFN 2x2 8 4 180 7 2,500 160 600 8.4/9.9 Tape Size W1 P B F ØJ H C, D and K are determined by component size. The clearance between the components and the cavity is as follows: - For 12mm carrier tape: 0.5mm max.
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5713/14-03 March 2023 www.richtek.com Tape and Reel Packing (QFN & DFN 2x2) Step Photo/Description Step Photo/Description Reel 7” 3 reels per inner box Box A HIC & Desiccant (1 Unit) inside 12 inner boxes per outer box Caution label is on backside of Al bag Outer box Carton A Container Package Reel Box Carton Size Units Item Size(cm) Reels Units Item Size(cm) Boxes Unit QFN & DFN 2x2 7” 2,500 Box E 18.6*18.6*3.5 1 2,500 For Combined or Partial Reel.
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5713/14-03 March 2023 Packing Material Anti-ESD Property Richtek Technology Corporation 14F, No. 8, Tai Yuen 1st Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Richtek products are sold by description only. Richtek reserves the right to change the circuitry and/or specifications without notic e at any time. Customers should obtain the latest relevant information and data sheets before placing orders and should verify that such information is current and complete. Richtek cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Richtek product. Information furnished by Richtek is believed to be accurate and reliable. However, no responsibility is assumed by Richtek or its subsidiaries for its use; nor for any infringements of patents or other rights of thi rd parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Ri chtek or its subsidiaries. Surface Resistance Aluminum Bag Reel Cover tape Carrier tape Tube Protection Band /cm2 104 to 1011 104 to 1011 104 to 1011 104 to 1011 104 to 1011 104 to 1011
Copyright © 2023 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS5713/14-03 March 2023 www.richtek.com Datasheet Revision History Version Date Description Item 03 2023/3/2 Modify Application Information on P12