APXK004A0X-SRZ

Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-Isolated DC-DC Power Modules 8Vdc –16Vdc input; 0.6Vdc to 8.0Vdc output; 4A Output Current Features Compliant to RoHS EU Directive 2002/95/EC (Z versions) Compatible in a Pb-free or SnPb reflow environment (Z versions) Wide Input voltage range (8Vdc-16Vdc) Output voltage programmable from 0.59Vdc to 8.0Vdc via external resistor RoHS Compliant Applications Distributed power architectures Intermediate bus voltage applications Telecommunications equipment Servers and storage applications Networking equipment Industrial equipment Vin+ Vout+ Tunable LoopTM to optimize dynamic output voltage response Remote sense Power Good signal Fixed switching frequency Output overcurrent protection (non-latching) Overtemperature protection Remote On/Off Ability to sink and source current Cost efficient open frame design VIN PGOOD VOUT SENSE RTUNE Small size: 12.2 mm x 12.2 mm x 7.25 mm (0.48 in x 0.48 in x 0.29 in) Wide operating temperature range (-40°C to 85°C) UL* Recognized to UL60950-1, CAN/CSA† C22.2 ‡ No. 60950-1-03, and EN60950-1(VDE 0805-1) Licensed ISO** 9001 and ISO 14001 certified manufacturing facilities MODULE Cin CTUNE Q1 Co ON/OFF GND TRIM RTrim Description The 16V Pico TLynxTM 4A power modules are non-isolated dc-dc converters that can deliver up to 4A of output current. These modules operate over a wide range of input voltage (VIN = 8Vdc-16Vdc) and provide a precisely regulated output voltage from 0.59Vdc to 8.0 Vdc, programmable via an external resistor. Features include remote On/Off, adjustable output voltage, over current and over temperature protection. A new feature, the Tunable LoopTM, allows the user to optimize the dynamic response of the converter to match the load with reduced amount of output capacitance leading to savings on cost and PWB area. * UL is a registered trademark of Underwriters Laboratories, Inc. † ‡ CSA is a registered trademark of Canadian Standards Association. VDE is a trademark of Verband Deutscher Elektrotechniker e.V. ** ISO is a registered trademark of the International Organization of Standards Document No: DS08-006 ver. 1.04 PDF name: APXK004A0X_ds.pdf Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Input Voltage Up to 10 seconds Operating Ambient Temperature (see Thermal Considerations section) Storage Temperature All Tstg -55 125 °C All TA -40 85 °C Device All Symbol VIN Min -0.3 Max 18 Unit Vdc Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Operating Input Voltage Maximum Input Current (VIN=8V to 16V, IO=IO, max ) Input No Load Current (VIN = 16.0Vdc, IO = 0, module enabled) Input Stand-by Current (VIN = 16.0Vdc, module disabled) Inrush Transient Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN =0 to 16V, IO= IOmax ; See Test Configurations) Input Ripple Rejection (120Hz) VO,set = 0.6 Vdc VO,set = 8.0Vdc All All All All IIN,No load IIN,No load IIN,stand-by It 50 -46 2 Device All All Symbol VIN IIN,max Min 8.0 Typ ⎯ Max 16.0 6.5 Unit Vdc Adc mA mA mA 18 96.1 1.2 1 As mAp-p dB 2 CAUTION: This power module is not internally fused. An input line fuse must always be used. This power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part of sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 6 A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information. LINEAGE POWER 2 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Electrical Specifications (continued) Parameter Output Voltage Set-point (with 0.5% tolerance for external resistor used to set output voltage) Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range (selected by an external resistor) (Some output voltages may not be possible depending on the input voltage – see Feature Descriptions Section) Remote Sense Range Output Regulation (for VO ≥ 2.5Vdc) Line (VIN=VIN, min to VIN, max) Load (IO=IO, min to IO, max) Output Regulation (for VO < 2.5Vdc) Line (VIN=VIN, min to VIN, max) Load (IO=IO, min to IO, max) Temperature (Tref=TA, min to TA, max) Remote Sense Range Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 10 μF ceramic capacitors) Peak-to-Peak (5Hz to 20MHz bandwidth) RMS (5Hz to 20MHz bandwidth) External Capacitance ESR ≥ 1 mΩ With the Tunable Loop ESR ≥0.15 mΩ ESR ≥ 10 mΩ Output Current (in either sink or source mode) Output Current Limit Inception (Hiccup Mode) (current limit does not operate in sink mode) Output Short-Circuit Current (VO≤250mV) ( Hiccup Mode ) Efficiency VIN= 12Vdc, TA=25°C IO=IO, max , VO= VO,set VO,set = 0.6Vdc VO, set = 1.2Vdc VO,set = 1.8Vdc VO,set = 2.5Vdc VO,set = 3.3Vdc VO,set = 5.0Vdc VO,set = 6.5Vdc VO,set = 8.0Vdc Switching Frequency 1 All TM TM 1 TM Device All All All All All All All All All All Symbol VO, set VO, set VO Min -1.5 -2.5 0.59 Typ Max +1.5 Unit % VO, set % VO, set Vdc Vdc % VO, set % VO, set mV mV % VO, set V ⎯ +2.5 8.0 0.5 ⎯ ⎯ ⎯ ⎯ ⎯ +0.4 10mV 10 5 0.4 0.5 All All ⎯ 90 36 100 38 mVpk-pk mVrms Without the Tunable Loop All All All All All All CO, max CO, max CO, max Io IO, lim IO, s/c 0 0 0 0 ⎯ ⎯ ⎯ 22 470 3000 4 μF μF μF Adc % Io,max mArms 200 200 η η η η η η η η fsw ⎯ 74.2 83.7 87.7 90.2 91.7 93.7 94.9 96.1 600 ⎯ % % % % % % % % kHz External capacitors may require using the new Tunable Loop feature to ensure that the module is stable as TM well as getting the best transient response. See the Tunable Loop section for details. LINEAGE POWER 3 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current General Specifications Parameter Calculated MTBF (IO=0.8IO, max, TA=40°C) Telcordia Issue 2 Method 1 Case 3 Weight Min Typ 14,353,850 ⎯ 1.92 (0.0677) ⎯ Max Unit Hours g (oz.) Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter On/Off Signal Interface (VIN=VIN, min to VIN, max ; open collector or equivalent, Signal referenced to GND) Device is with suffix “4” – Positive Logic (See Ordering Information) Logic High (Module ON) Input High Current Input High Voltage Logic Low (Module OFF) Input Low Current Input Low Voltage Device Code with no suffix – Negative Logic (See Ordering Information) (On/OFF pin is open collector/drain logic input with external pull-up resistor; signal referenced to GND) Logic High (Module OFF) Input High Current Input High Voltage Logic Low (Module ON) Input low Current Input Low Voltage Turn-On Delay and Rise Times (VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state) Case 1: On/Off input is enabled and then input power is applied (delay from instant at which VIN = VIN, min until Vo = 10% of Vo, set) Case 2: Input power is applied for at least one second and then the On/Off input is enabled (delay from instant at which Von/Off is enabled until Vo = 10% of Vo, set) Output voltage Rise time (time for Vo to rise from 10% of Vo, set to 90% of Vo, set) Output voltage overshoot (TA = 25 C VIN= VIN, min to VIN, max,IO = IO, min to IO, max) With or without maximum external capacitance Over Temperature Protection (See Thermal Considerations section) All Tref 140 °C o Device Symbol Min Typ Max Unit All All All All IIH VIH IIL VIL 3.5 ⎯ -0.3 ⎯ ⎯ ⎯ ⎯ 10 VIN,max 1 0.8 µA V mA V All All All All IIH VIH IIL VIL ― 3.5 ― -0.2 ― ― ― ― 1 VIN, max 10 0.3 mA Vdc μA Vdc All Tdelay ― 2 ― msec All All Tdelay Trise ― ― 2 4 ― ― 3 msec msec % VO, set LINEAGE POWER 4 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Feature Specifications (cont.) Parameter Input Undervoltage Lockout Turn-on Threshold Turn-off Threshold Hysteresis PGOOD (Power Good) Signal Interface Open Drain, Vsupply ≤ 5VDC Output Voltage Limit for PGOOD Pulldown resistance of PGOOD pin All All 90% 7 110% 50 VO, set Ω All All All 3.6 0.4 4.0 Vdc Vdc Vdc Device Symbol Min Typ Max Units LINEAGE POWER 5 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Characteristic Curves The following figures provide typical characteristics for the 16V Pico TLynxTM 4A at 0.6Vo and at 25oC. 85 4.5 OUTPUT CURRENT, Io (A) 80 EFFICIENCY, η (%) 75 70 65 60 55 50 0 1 2 3 4 Vin=8V 3.5 NC 2.5 1.5 0.5 20 30 40 50 60 70 O 80 90 OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 1. Converter Efficiency versus Output Current. Figure 2. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, VO (V) (500mV/div) IO (A) (2Adiv) OUTPUT VOLTAGE VO (V) (10mV/div) TIME, t (1μs/div) TIME, t (20μs /div) Figure 3. Typical output ripple and noise (VIN = 8V, Io = Io,max). ON/OFF VOLTAGE VON/OFF (V) (5V/div) Figure 4. Transient Response to Dynamic Load Change from 0% to 50% to 0% . INPUT VOLTAGE OUTPUT VOLTAGE Vin (V) (10v/div) VO (V) (200MV/div) OUTPUT VOLTAGE VO (V) (200mV/div) TIME, t (2 ms/div) TIME, t (2 ms/div) Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max, VIN = 8V) Figure 6. Typical Start-up Using Input Voltage (VIN = 8V, Io = Io,max). LINEAGE POWER 6 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Characteristic Curves The following figures provide typical characteristics for the 16V Pico TLynxTM 4A at 1.2Vo and at 25oC. 90 85 80 4.5 OUTPUT CURRENT, Io (A) 3.5 NC EFFICIENCY, η (%) 75 70 65 60 55 50 0 1 Vin=8V Vin=12V Vin=16V 2.5 1.5 0.5 20 30 40 50 60 70 O 2 3 4 80 90 OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 7. Converter Efficiency versus Output Current. Figure 8. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, VO (V) (500mV/div) IO (A) (2Adiv) OUTPUT VOLTAGE VO (V) (10mV/div) TIME, t (1μs/div) TIME, t (20μs /div) Figure 9. Typical output ripple and noise (VIN = 12V, Io = Io,max). ON/OFF VOLTAGE VON/OFF (V) (5V/div) Figure 10. Transient Response to Dynamic Load Change from 0% to 50% to 0%. INPUT VOLTAGE OUTPUT VOLTAGE VIN (V) (10V/div) V0 (V) (500mV/div) OUTPUT VOLTAGE VO(V) (500mV/div) TIME, t (2 ms/div) TIME, t (2 ms/div) Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max ,VIN = 8V). Figure 12. Typical Start-up Using Input Voltage (VIN = 8V, Io = Io,max). LINEAGE POWER 7 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Characteristic Curves The following figures provide typical characteristics for the 16V Pico TLynxTM 4A at 1.8Vo and at 25oC. 95 90 85 4.5 OUTPUT CURRENT, Io (A) 3.5 NC EFFICIENCY, η (%) 80 75 70 65 60 55 50 0 1 2 3 4 Vin=8V Vin=12V Vin=16V 2.5 1.5 0.5 20 30 40 50 60 70 O 80 90 OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 13. Converter Efficiency versus Output Current. Figure 14. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, VO (V) (500mV/div) IO (A) (2Adiv) OUTPUT VOLTAGE VO (V) (20mV/div) TIME, t (1μs/div) TIME, t (20μs /div) Figure 15. Typical output ripple and noise (VIN = 12V, Io = Io,max). ON/OFF VOLTAGE VON/OFF (V) (5V/div) Figure 16. Transient Response to Dynamic Load Change from 0% to 50% to 0%. INPUT VOLTAGE VIN (V) (10V/div) V0 (V) (500mV/div) OUTPUT VOLTAGE TIME, t (2 ms/div) OUTPUT VOLTAGE VO(V) (500mV/div) TIME, t (2 ms/div) Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 8 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Characteristic Curves The following figures provide typical characteristics for the 16V Pico TLynxTM 4A at 2.5Vo and at 25oC. 95 90 4.5 OUTPUT CURRENT, Io (A) 85 3.5 NC EFFICIENCY, η (%) 80 75 70 65 60 55 50 0 1 Vin=8V Vin=12V Vin=16V 2.5 1.5 0.5 20 30 40 50 60 70 O 2 3 4 80 90 OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 19. Converter Efficiency versus Output Current. Figure 20. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, VO (V) (500mV/div) IO (A) (2Adiv) OUTPUT VOLTAGE VO (V) (20mV/div) TIME, t (1μs/div) TIME, t (20μs /div) Figure 21. Typical output ripple and noise (VIN = 12V, Io = Io,max). ON/OFF VOLTAGE VON/OFF (V) (5V/div) Figure 22. Transient Response to Dynamic Load Change from 0% to 50% to 0%. INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT VOLTAGE VO(V) (1V/div) TIME, t (2 ms/div) V0 (V) (1V/div) VIN (V) (10V/div) TIME, t (2 ms/div) Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 9 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Characteristic Curves The following figures provide typical characteristics for the 16V Pico TLynxTM 4A at 3.3Vo and at 25oC. 95 OUTPUT CURRENT, Io (A) 4.5 90 EFFICIENCY, η (%) 3.5 NC 85 Vin=8V 80 Vin=12V 75 70 0 1 2 3 4 OUTPUT CURRENT, IO (A) 2.5 Vin=16V 1.5 0.5 20 30 40 50 60 70 O 80 90 AMBIENT TEMPERATURE, TA C Figure 25. Converter Efficiency versus Output Current. Figure 26. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, VO (V) (500mV/div) IO (A) (2Adiv) OUTPUT VOLTAGE VO (V) (20mV/div) TIME, t (1μs/div) TIME, t (20μs /div) Figure 27. Typical output ripple and noise (VIN = 12V, Io = Io,max). ON/OFF VOLTAGE VON/OFF (V) (5V/div) Figure 28. Transient Response to Dynamic Load Change from 0% 50% to 0%. INPUT VOLTAGE OUTPUT VOLTAGE VIN (V) (10V/div) V0 (V) (1V/div) OUTPUT VOLTAGE VO(V) (1V/div) TIME, t (2ms/div) TIME, t (2ms/div) Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 10 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Characteristic Curves The following figures provide typical characteristics for the 16V Pico TLynxTM 4A at 5.0 Vo and at 25oC. 100 95 90 EFFICIENCY, η (%) OUTPUT CURRENT, Io (A) 3.5 NC 4.5 85 80 75 70 65 60 55 0 1 2 3 4 OUTPUT CURRENT, IO (A) Vin=8V Vin=12V Vin=16V 2.5 1.5 0.5 20 30 40 50 60 70 O 80 90 AMBIENT TEMPERATURE, TA C Figure 31. Converter Efficiency versus Output Current. Figure 31. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, VO (V) (500mV/div) IO (A) (2Adiv) OUTPUT VOLTAGE VO (V) (50mV/div) TIME, t (1μs/div) TIME, t (20μs /div) Figure 33. Typical output ripple and noise (VIN = 12V, Io = Io,max). ON/OFF VOLTAGE VON/OFF (V) (5V/div) Figure 34. Transient Response to Dynamic Load Change from 0% 50% to 0%. INPUT VOLTAGE OUTPUT VOLTAGE VIN (V) (10V/div) V0 (V) (2V/div) OUTPUT VOLTAGE VO(V) (2V/div) TIME, t (2ms/div) TIME, t (2ms/div) Figure 35. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 11 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Characteristic Curves The following figures provide typical characteristics for the 16V Pico TLynxTM 4A at 6.5 Vo and at 25oC. 100 95 90 EFFICIENCY, η (%) OUTPUT CURRENT, Io (A) 3.5 NC 4.5 85 80 75 70 65 60 55 0 Vin=8V Vin=12V Vin=16V 2.5 1.5 0.5 20 30 40 50 60 70 O 1 2 3 OUTPUT CURRENT, IO (A) 4 80 90 AMBIENT TEMPERATURE, TA C Figure 37. Converter Efficiency versus Output Current. Figure 38. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, VO (V) (500mV/div) IO (A) (2Adiv) OUTPUT VOLTAGE VO (V) (50mV/div) TIME, t (1μs/div) TIME, t (20μs /div) Figure 39. Typical output ripple and noise (VIN = 12V, Io = Io,max). ON/OFF VOLTAGE VON/OFF (V) (5V/div) Figure 40. Transient Response to Dynamic Load Change from 0% 50% to 0%. INPUT VOLTAGE OUTPUT VOLTAGE VIN (V) (10V/div) V0 (V) (2V/div) OUTPUT VOLTAGE VO(V) (2V/div) TIME, t (2ms/div) TIME, t (2ms/div) Figure 41. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 42. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 12 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Characteristic Curves The following figures provide typical characteristics for the 16V Pico TLynxTM 4A at 8.0Vo and at 25oC. 100 95 4.5 OUTPUT CURRENT, Io (A) 90 3.5 NC EFFICIENCY, η (%) 85 80 75 70 65 60 55 0 1 2 3 4 Vin=8V Vin=12V Vin=16V 2.5 1.5 0.5 20 30 40 50 60 70 O 80 90 OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 43. Converter Efficiency versus Output Current. Figure 44. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, VO (V) (500mV/div) IO (A) (2Adiv) OUTPUT VOLTAGE VO (V) (50mV/div) TIME, t (1μs/div) TIME, t (20μs /div) Figure 45. Typical output ripple and noise (VIN = 12V, Io = Io,max). ON/OFF VOLTAGE VON/OFF (V) (5V/div) Figure 46. Transient Response to Dynamic Load Change from 0% 50% to 0%. INPUT VOLTAGE OUTPUT VOLTAGE VIN (V) (10V/div) V0 (V) (2V/div) OUTPUT VOLTAGE VO(V) (2V/div) TIME, t (2ms/div) TIME, t (2ms/div) Figure 47. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 48. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 13 Data Sheet September 9, 2009 16V Pico TLynxTM 4A: Non-isolated DC-DC Power Modules 8 – 16Vdc input; 0.6Vdc to 8.0Vdc output; 4A output current Test Configurations TO OSCILLOSCOPE LTEST 1μH VIN(+) CURRENT PROBE Design Considerations Input Filtering The 16V Pico TLynxTM 4A module should be connected to a low ac-impedance source. A highly inductive source can affect the stability of the module. An input capacitance must be placed directly adjacent to the input pin of the module, to minimize input ripple voltage and ensure module stability. To minimize input voltage ripple, ceramic capacitors are recommended at the input of the module. Figure 52 shows the input ripple voltage for various output voltages at 4A of load current with 1x10 µF or 1x22 µF ceramic capacitors and an input of 12V. Input Ripple Voltage (mVp-p) 350 300 250 200 150 100 50 0 0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 1x10uF 1x22uF BATTERY CS 1000μF Electrolytic E.S.R.