AP1609

Document overview

  • Manufacturer or author: Diodes Incorporated
  • PDF pages: 9

Technical content

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER 1 of 9 www.diodes.com AP1609 Document number: DS43894 Rev. 1- 4 August 2021 © Diodes Incorporated OBSOLETE – PART DISCONTINUED Features General Description

  • Input Voltage Range: 2.5~6V
  • Output Voltage Range: 3.0~17V (±2.5%)
  • PWM/PFM Switching Control
  • Oscillator Frequency: 300KHz (±20%)
  • High Efficiency: 91% (Typ.)
  • Stand-by Current: ISTB 1 = µA (Typ.)
  • Built-in internal N-Channel MOS
  • Lead Free Package: SOP-8L
  • SOP-8L: Available in “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish/ RoHS Compliant (Note 1) The AP1609 is a high efficient step -up DC/DC converter. Large output current is possible having a built in internal N channel MOSFET, and using an external coil and diode. Output voltage is programmable with 1.23V of standard voltage supply internal, and using externally connected components, output voltage (FB) can be set up at will. With a 300KHz switching frequency, the size of the external components can be reduced. Control switches from PFM to PWM during light loads with the AP1609 (PWM/PFM switchable) and the series are highly efficient from light loads to large output currents. During stand -by time (CE pin “Low”), current consumption is reduced to 1µA.

Applications

  • Electronic Information Organizers
  • Palmtops
  • Cellular and Portable Phones
  • Portable Audio Systems
  • Various Multi-Function Power Supplies

Ordering Information

S : SOP-8L L : Lead Free G : Green 13 : Tape & Reel Lead-free Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. Package Lead Free Packing Device Package Code Packaging (Note 2) 13” Tape and Reel Quantity Part Number Suffix AP1609SL-13 S SOP-8L 2500/Tape & Reel -13 AP1609SG-13 S SOP-8L 2500/Tape & Reel -13 PART OBSOLETE - USE PAM2423

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER 2 of 9 www.diodes.com AP1609 Document number: DS43894 Rev. 1- 4 August 2021 © Diodes Incorporated OBSOLETE – PART DISCONTINUED Pin Assignments ( Top View ) CE Vcc GND GND FB LX PGND LX SOP-8L Pin Descriptions Pin Name Pin Number Description CE Chip Enable: H: Enable L: Disable Vcc 2 IC signal power supply pin FB 3 Feedback pin PGND 4 Power MOSFET GND LX 5, 6 Switch Pin. Connect external inductor/diode here. Minimize trace area at this pin to reduce EMI. GND 7, 8 GND Pin

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER 3 of 9 www.diodes.com AP1609 Document number: DS43894 Rev. 1- 4 August 2021 © Diodes Incorporated OBSOLETE – PART DISCONTINUED Block Diagram Vcc FB LX CE GND PGND Absolute Maximum Ratings Symbol Parameter Ratings Units VCC VIN Pin Voltage -0.3 ~ 7 V VFB FB Pin Voltage -0.3 ~ VCC +0.3 V VCE CE Pin Voltage -0.3 ~ VCC +0.3 V VSW Switch Voltage (LX to GND) -0.3 ~ 18 V ILX Switch Current -3 ~ 0.2 A PD Continuous Total Power Dissipation 1200 mW TOPR Operating Ambient Temperature -20 ~ +80 oC TSTG Storage Temperature -20 ~ +125 oC Phase Compensation PWM Comparator PWM/PFM Controller Ramp Wave Generator, OSC Buffer, Driver Vref with CE

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER 4 of 9 www.diodes.com AP1609 Document number: DS43894 Rev. 1- 4 August 2021 © Diodes Incorporated OBSOLETE – PART DISCONTINUED

Electrical Characteristics

AP1609 ( FOSC = 300kHz, VOUT = 5V ) TA = 25 oC Symbol Parameter Conditions Min Typ. Max Units VFB FB Voltage 1.20 1.23 1.26 V VCC Input Voltage 2.5 - 6 V VOUT Output Voltage 3.0 - 17 V IOUT Maximum Switching Output Current 2.4 - - A RDS (ON) Drain-Source On-State Resistance ID = 2.4A - 100 - mΩ ICCQ Quiescent Current No Load, FB = 2V, CE = High - 80 130 μA ISD Shutdown Current No Load, CE = Low - 1 - μA Fosc Oscillator Frequency Measuring of EXT Waveform, VIN = Output Voltage +0.3V 240 300 360 kHz MAXDTY Maximum Duty Ratio 80 - - % PFMDTY PFM Duty Ratio No Load 15 25 35 % VCEH CE “High” Voltage No External Components, VFB = 0V, Apply 0.65VCC (min.) to CE, Chip Enable 0.65 *VCC VCEL CE “Low” Voltage Same as VCEH, Chip Disable - - 0.20 *VCC EFFI Efficiency - 91 - %

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER 5 of 9 www.diodes.com AP1609 Document number: DS43894 Rev. 1- 4 August 2021 © Diodes Incorporated OBSOLETE – PART DISCONTINUED Typical Application Circuit (1) Normal Circuit 2.5V~6V 10uH SS340 ut V = 1.23× (1+ R1 ) , R = 10K~100K out R2 (2) HV Circuit above V V = 1.23× (1+ R1 ) , R = 10K~100K out R2 ZD

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER 6 of 9 www.diodes.com AP1609 Document number: DS43894 Rev. 1- 4 August 2021 © Diodes Incorporated OBSOLETE – PART DISCONTINUED Typical Performance Characteristics Vcc vs. Supply Current 210 VCE =Vcc 180 150 120 3 3.5 4 4.5 Vcc (V) 5 5.5 6 Vcc vs. Frequency 0.8 0.6 0.4 0.2 -0.2 -0.4 -0.6 -0.8 Load = 50mA 3 3.5 4 4.5 Vcc (V) 5 5.5 6 1.5

0.5 Vcc = 5V

-0.5 -1.5 0 200 400 600 800 1000 Load (mA) Load vs. Efficiency 100 65 Vcc = 3.3V,Vout = 5V 0.2 0.4 0.6 0.8 1 1.2 1.4 Load vs. Efficiency 100

70 Vcc = 5V,Vout = 12V

0.2 0.4 0.6 0.8 1 1.2 1.4 Supply Current (uA) Efficienc Line Regulation Frequency Efficienc Load Regulation (%)

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER 7 of 9 www.diodes.com AP1609 Document number: DS43894 Rev. 1- 4 August 2021 © Diodes Incorporated OBSOLETE – PART DISCONTINUED Typical Performance Characteristics (Continued) 400 Temperature vs. Frequency 350 300 250 200 150 Load = 300mA Vcc = 5V 100 -50 -25 0 25 50 75 100 Temperature (oC) 200 180 160 140 120 100 Temperature vs. Supply Current Vcc = 5V -50 -25 0 25 50 75 100 Temperature (oC) Temperature vs. Vout Vcc = 5V Load = 100mA -50 -25 0 25 50 75 100 Temperature (oC) Frequency (KHz) Vout / Vout (%) Supply Current (uA)

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER 8 of 9 www.diodes.com AP1609 Document number: DS43894 Rev. 1- 4 August 2021 © Diodes Incorporated OBSOLETE – PART DISCONTINUED 1.27typ 0.3/0.5 4.85/4.95 Marking Information (1) SOP-8L ( Top View ) Logo Part Number L : Lead Free G : Green YY : Year : 08, 09,10~ WW : Week : 01~52; 52 represents 52 and 53 week X : Internal Code Package Information (All Dimensions in mm) (1) Package Type: SOP-8L Gauge Plane Seating Plane Detail "A" 7°~9° 6x-1.27 Land Pattern Recommendation (Unit: mm) AP1609 YY WW X X 0.35max. 45° 8x- 5.4 3.85/3.95 5.90/6.10 1.30/1.5 0.15/0.2 0.10/0.2 0.25

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER 9 of 9 www.diodes.com AP1609 Document number: DS43894 Rev. 1- 4 August 2021 © Diodes Incorporated 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 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTIC ULAR 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 operati on of Diodes products described herein and application examples. Diodes does not assume any liability arising out of the application or us e of this document or any product described herein. This document is intended for skilled and technically trained engi neering customers and users who design with Diodes products. Diodes products may be used to facilitate safety -related applications; however, in all instances customers and users are responsible for (a) selecting the appropriate Diodes products for their applications, (b) evaluating the suitability of the Diodes products for their intended applications, (c) ensuring their applications, which incorporate Diodes products, c omply the applicable legal and regulatory requirements as well as safety and functional -safety related standards, and (d) ensuring they design with appropriate safeguards (including testing, validation, quality control techniques, redundancy, malfunction prevention, and appropriate treatment for aging degradation) to minimize the risks associated with their applications. 3. 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