AP1609 DIODES | Alldatasheet

Document overview

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Technical content

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER AP1609 Rev. 1 1 of 8 JANUARY 2007 www.diodes.com © Diodes Incorporated

  • 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 and Green Package: SOP-8L
  • Lead Free Finish/RoHS Compliant for Lead Free products (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.
  • Electronic Information Organizers
  • Palmtops
  • Cellular and Portable Phones
  • Portable Audio Systems
  • Various Multi-Function Power Supplies AP1609 X X X Package Packing - U : Tube -13 : Taping S : SOP-8L Lead-Free L : Lead-Free G : Green Tube 13” Tape and Reel Device (Note 2) Package Code Packaging Quantity Part Number Suffix Quantity Part Number Suffix AP1609S S SOP-8L 100 -U 2500/Tape & Reel -13 Note: 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. Features General Description

Applications

Ordering Information

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER AP1609 Rev. 1 2 of 8 JANUARY 2007 www.diodes.com © Diodes Incorporated CE LXFB AP1609 LX GND GND PGND Vcc SOP-8L Pin Name Pin Number Description CE 1 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 Block Diagram Phase Compensation Vref with CE PWM/PFM Controller Ramp Wave Generator, OSC Buffer, Driver FB CE PGND LX PWM Comparator GND Vcc Pin Assignments Pin Descriptions

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER AP1609 Rev. 1 3 of 8 JANUARY 2007 www.diodes.com © Diodes Incorporated Absolute Maximum Ratings P a r a m e t e r Symbol Ratings Units VIN Pin Voltage V CC -0.3 ~ 7 V FB Pin Voltage V FB -0.3 ~ V CC +0.3 V CE Pin Voltage V CE -0.3 ~ V CC +0.3 V Switch Voltage (LX to GND) V SW -0.3 ~ 18 V Switch Current I LX -3 ~ 0.2 A Continuous Total Power Dissipation Pd 1200 mW Operating Ambient Temperature Topr -20 ~ +80 oC Storage Temperature Tstg -20 ~ +125 oC

Electrical Characteristics

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

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER AP1609 Rev. 1 4 of 8 JANUARY 2007 www.diodes.com © Diodes Incorporated Typical Application Circuit (1) Normal Circuit LX VCC FB GND CE 2.5V~6V PGND SS340 CBP 0.1u 100u Vout 0.1u 330K 3.3u0.1u 100 100u Vout = 1.23 (1+ ) , R2 = 10K~100K 10uH Option (2) HV Circuit LX VCC FB GND CE above 5.5V PGND SS340 0.1u 470u 15V 0.1u 330K ZD 0.1u R 470u Vout = 1.23 (1+ ) , R2 = 10K~100K 3.3u 10uH CBP Option

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER AP1609 Rev. 1 5 of 8 JANUARY 2007 www.diodes.com © Diodes Incorporated Typical Performance Characteristics 120 150 180 210 33 . 544 . 555 . 56 Vcc vs. Supply Current Vcc (V) Supply Current (uA) VCE =Vcc Vcc vs. Frequency 100 150 200 250 300 350 400 3 3.5 4 4.5 5 5.5 6 Vcc (V) Frequency (KHz) Load = 300mA Line Regulation -0.8 -0.6 -0.4 -0.2 0.2 0.4 0.6 0.8 3 3.5 4 4.5 5 5.5 6 Vcc (V) Line Regulation (%) Load = 50mA -1.5 -0.5 0.5 1.5 0 200 400 600 800 1000 Load (mA) Load Regulation (%) Load Regulation Vcc = 5V 100 Load (A) Efficiency Load vs. Efficiency Vcc = 3.3V,Vout = 5V 100 Load (A) Efficiency Load vs. Efficiency Vcc = 5V,Vout = 12V

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER AP1609 Rev. 1 6 of 8 JANUARY 2007 www.diodes.com © Diodes Incorporated Typical Performance Characteristics ( Continued ) 100 150 200 250 300 350 400 -50 -25 0 25 50 75 100 Temperature vs. Frequency Temperature (oC) Frequency (KHz) Load = 300mA Vcc = 5V 100 120 140 160 180 200 -50 -25 0 25 50 75 100 Temperature vs. Supply Current Temperature (oC) Supply Current (uA) Vcc = 5V -50 -25 0 25 50 75 100 Temperature vs. Vout Temperature (oC) Vout / Vout (%) Vcc = 5V Load = 100mA

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER AP1609 Rev. 1 7 of 8 JANUARY 2007 www.diodes.com © Diodes Incorporated Marking Information (1) SOP-8L ( Top View ) Logo Part no. Internal code Year: "01" =2001 "02" =2002 Xth week: 01~52 ~1 4 8 5 AP1609 YY WW X X L : Lead Free Package G: Green Package Device Package Identification Code AP1609S SOP-8L AP1609 Package Information ( All Dimensions in mm ) Package Type: SOP-8L 1.27typ 0.3/0.5 7°~9° 4.80/5.30 3.70/4.10 5.79/6.20 0.20typ 7°~9° 3.70/4.10 0.38/1.27 0.08/0.25 Gauge Plane 0.254 Seating Plane 0.35max. 45° Detail "A" Detail "A" 1.30/1.50 1.75max.

PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER AP1609 Rev. 1 8 of 8 JANUARY 2007 www.diodes.com © Diodes Incorporated IMPORTANT NOTICE LIFE SUPPORT Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated.