AP3407/A

Document overview

  • Manufacturer or author: Diodes Incorporated
  • PDF pages: 10

Technical content

Features

  • Input Voltage Range: 2.5V to 5.5V
  • Output Voltage: 0.6V to VIN
  • ADJ Output
  • Fixed 1.4MHz Frequency
  • High Efficiency up to 95%
  • Output Current: 1.2A
  • Current Mode Control
  • 100% Duty Cycle in Dropout
  • Built-in Over Current Protection
  • Built-in Short Circuit Protection
  • Built-in Thermal Shutdown Protection
  • Built-in UVLO Function
  • Built-in Soft-start
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3) Pin Assignments (Top View) 3 4 5EN GND SW FB VIN SOT-23-5 for AP3407 (Top View) 3 4 5VIN GND EN SW FB SOT-23-5 for AP3407A

Applications

  • Datacom
  • Portable Device
  • Smart Phone Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Hal ogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. Typical Applications Circuit AP3407/A-ADJ L COUTCIN VIN R2 R1 VOUT 4.7µF 2.2µH 22µF EN VIN SW FB GND PART OBSOLETE – CONTACT US

Document number: DS37553 Rev. 3 - 4 2 of 10 www.diodes.com July 2021 © Diodes Incorporated AP3407/A OBSOLETE – PART DISCONTINUED Pin Descriptions Pin Number Pin Name Function AP3407 AP3407A 1 3 EN Control input pin. Forcing this pin above 1.5V enables the IC. Forci ng this pin below 0. 4V shuts down the IC. When the IC is in shutdown mode, all functions are disabled to decrease the supply current below 1.2A 2 2 GND Ground pin 3 5 SW Power switch output pin. Inductor connection to drain of the internal PFET and NFET switches 4 1 VIN Supply input pin. Bypass to GND with a 4.7µF or greater ceramic capacitor 5 4 FB This is the feedback pin of the device. Connect this pin directly to the output if the fixed output voltage version is used. For the adjustable version an external resistor divider is connected to this pin. Functional Block Diagram VOLTAGE REFERENCE OSCILLATOR CURRENT SENSE ERROR AMPLIFIER PWM COMPARATOR MAX CURRENT LIMIT 0.6V VOCP 0.4V LOGIC CLK DRIVER SHORT CIRCUIT PROTECTION REVERSE COMPARATOR EN FB GND SW GNDVIN VIN 1 (3) 5 (4) 2 (2) 4 (1) 3 (5) A (B) A for AP3407 B for AP3407A 4 (1) 2 (2)

Document number: DS37553 Rev. 3 - 4 3 of 10 www.diodes.com July 2021 © Diodes Incorporated AP3407/A OBSOLETE – PART DISCONTINUED Absolute Maximum Ratings (Note 4) Symbol Parameter Rating Unit VIN Input Voltage -0.3 to 6.0 V VFB Feedback Voltage -0.3 to VIN +0.3 V VEN EN Pin Voltage -0.3 to VIN+0.3 V VSW SW Pin Voltage -0.3 to VIN+0.3 (Note 6) V θJA Thermal Resistance (Junction to Ambient) 265 °C/W θJC Thermal Resistance (Junction to Case) 60 °C/W PD Power Dissipation 0.377 W TJ Operating Junction Temperature (Note 5) +150 °C TSTG Storage Temperature -65 to +150 °C TLEAD Lead Temperature (Soldering, 10sec) +260 °C Notes: 4. Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stres s ratings only, and functional operation of the device at these or any other conditions b eyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability. 5. The junction temperature rise is given by T RISING = PD*θJA, where PD is the power dissipated by regulator, θJA is the thermal resistance from junction of the die to the ambient temperature; The junction temperature, TJ is given by TJ = TA+TR, where TA is the ambient temperature. 6. DC voltage rating, for short period of spike voltage, the minimum voltage rating is -1V, in 20nS. Recommended Operating Conditions Symbol Parameter Min Max Unit VIN Input Voltage 2.5 5.5 V IOUT (MAX) Maximum Output Current 1.2 – A TA Operating Ambient Temperature -40 +85 ºC

Document number: DS37553 Rev. 3 - 4 4 of 10 www.diodes.com July 2021 © Diodes Incorporated AP3407/A OBSOLETE – PART DISCONTINUED Electrical Characteristics (@VIN = VDD = VPVDD = 3.3V, TA = +25°C, unless otherwise specified.) Symbol Parameters Conditions Min Typ Max Unit VIN Input Voltage – 2.5 – 5.5 V IQ Quiescent Current VFB = 0.65V – 62 100 µA ISTBY Shutdown Supply Current VEN = GND – 0.1 1 µA VREF Reference Voltage For Adjustable Output Voltage 0.588 0.6 0.612 V IFB Feedback Bias Current VFB = VIN -0.1 – 0.1 µA ∆VOUT Output Voltage Accuracy – -2 2 % RDS(ON)_ P PMOSFET RON ISW = 200mA – 0.28 – Ω RDS(ON) _N NMOSFET RON ISW = -200mA – 0.25 – Ω ILIM Switch Current Limit VFB = 0.55V 1.5 2.0 – A VH EN Pin Threshold – 1.5 – – V VL – – – 0.4 VUVLO UVLO Threshold VDD Rising – 2.3 – V VHYS UVLO Hysteresis – – 0.2 – fOSC Oscillator Frequency – 1.12 1.40 1.68 MHz DMAX Max. Duty Cycle VFB = 0V 100 – – DMIN Min. Duty Cycle VFB = 6.5V – – 0 – N-MOS SW Leakage Current VIN = 3.3V, VSW = 3.3V – 0.1 – µA t Soft-start Time – – 1 – ms TOTSD Thermal Shutdown – – +160 – ºC THYS Thermal Shutdown Hysteresis – – +20 – ºC

Document number: DS37553 Rev. 3 - 4 5 of 10 www.diodes.com July 2021 © Diodes Incorporated AP3407/A OBSOLETE – PART DISCONTINUED 200 400 600 800 1000 1200 100 Efficiency (%) Output Current (mA) VIN=3.3V VOUT=2.5V 2 3 4 5 6 Efficiency (%) Input Voltage (V) VOUT=2.5V IOUT=0.5A IOUT=1.0A 200 400 600 800 1000 1200 2.47 2.48 2.49 2.50 2.51 Output Voltage (V) Output Current (mA) VIN=3.3V VOUT=2.5V Performance Characteristics Efficiency vs. Output Current Efficiency vs. Input Voltage Output Voltage vs. Output Current Frequency vs. Input Voltage Frequency vs. Temperature Feedback Voltage vs. Temperature 1.3 1.4 1.5 1.6 1.7 1.8 Frequency (MHz) Input Voltage (V) IOUT=300mA -40 0 40 80 120 160 1.2 1.3 1.4 1.5 1.6 1.7 Frequency (MHz) Temperature ( O VIN=3.3V VOUT=2.5V -40 0 40 80 120 160 0.57 0.58 0.59 0.60 0.61 0.62 Feedback Voltage (V) Temperature ( O VIN=3.3V

Document number: DS37553 Rev. 3 - 4 6 of 10 www.diodes.com July 2021 © Diodes Incorporated AP3407/A OBSOLETE – PART DISCONTINUED Performance Characteristics (Cont.) OCP Current Limit vs. Temperature RDS(ON)_UP vs. Temperature RDS(ON)_LOW vs. Temperature -40 0 40 80 120 160 1.2 1.4 1.6 1.8 2.0 2.2 OCP Current Limit (A) Temperature ( O VIN=3.3V VFB=0.55V -40 0 40 80 120 160 0.0 0.1 0.2 0.3 0.4 0.5 RDS(ON)-UP (Ω) Temperature ( O VIN=3.3V ISW=200mA -40 0 40 80 120 160 0.12 0.16 0.20 0.24 0.28 0.32 RDS(ON)-Low (Ω) Temperature ( O VIN=3.3V ISW=200mA

Document number: DS37553 Rev. 3 - 4 7 of 10 www.diodes.com July 2021 © Diodes Incorporated AP3407/A OBSOLETE – PART DISCONTINUED

Ordering Information

TR : Tape & Reel Blank : AP3407 Product Name Product Version K : SOT-23-5 G1 : Green A : AP3407A RoHS/Green Package Temperature Range Part Number Marking ID Packing SOT-23-5 -40 to +85ºC AP3407KTR-G1 GJA 3000/Tape & Reel AP3407AKTR-G1 GJB 3000/Tape & Reel Marking Information SOT-23-5 (Top View) First Line: Logo and Marking ID (See Ordering Information)

Document number: DS37553 Rev. 3 - 4 8 of 10 www.diodes.com July 2021 © Diodes Incorporated AP3407/A OBSOLETE – PART DISCONTINUED Package Outline Dimensions (All dimensions in mm(inch).) (1) Package Type: SOT-23-5 2.820(0.111) 2.650 (0.104) 1.500(0.059) 0.000(0.000) 0.300(0.012) 0.950(0.037) 0.900(0.035) 0.100(0.004) 0.200(0.008) 0.300(0.012) 3.100(0.122) 0.500(0.020) 0.150(0.006) 1.300(0.051) 0.200(0.008) 0.600(0.024) 1.800(0.071) 2.000(0.079) 0.700(0.028) REF TYP 1.450(0.057) MAX

Document number: DS37553 Rev. 3 - 4 9 of 10 www.diodes.com July 2021 © Diodes Incorporated AP3407/A OBSOLETE – PART DISCONTINUED Suggested Pad Layout (1) Package Type: SOT-23-5 Y X G Z Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) (mm)/(inch) (mm)/(inch)

Document number: DS37553 Rev. 3 - 4 10 of 10 www.diodes.com July 2021 © Diodes Incorporated AP3407/A OBSOLETE – PART DISCONTINUED IMPORTANT NOTICE 1. DIODES INCORPORATED AND ITS SUBSIDIARIES (“DIODES”) MAKE NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO ANY INFORMATION CONTAINED IN THIS DOCUMENT, INCLUDING, BUT NOT LI MITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON -INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 2. The Information contained herein is for informational purpose only and is provided only to illustrate the operation of Diodes products described herein and application examples. Diodes does not assume any liability arising out of the application or use of this document or any product described herein. This document is intended for skilled and technically trained engineering customers and users who design with Diodes products. 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