ABRIDGED 19-3617; Rev 6; 7/07 8-Channel PMICs for Digital Camera Power Supplies KIT ATION EVALU E L B AVAILA The MAX8610–MAX8613/MAX8611V are highly efficient complete power-supply solutions for digital still cameras (DSCs) and digital video cameras (DVCs). Seven internal-MOSFET DC-DC converters provide up to 95% efficiency and generate all critical power supplies in DSC systems. They also feature True Shutdown™, as well as internal compensation to minimize external component count. One additional converter operates with an external MOSFET for optimum design flexibility. In all, eight converter channels include: • Synchronous-rectified step-up with True Shutdown. • Two synchronous-rectified step-down (MAX8611/ MAX8613/MAX8611V) or step-up (MAX8610/ MAX8612) converters power DSC system, I/O, and AFE blocks. • Low-V OUT (down to 1V), synchronous-rectified step-down to power a DSP core. • High-output-voltage step-up for CCD bias. • Transformerless inverter for negative CCD bias. • High-output-voltage step-up for white LEDs, OLED display, or other output. • Auxiliary DC-DC boost (MAX8611/MAX8610/ MAX8611V) or inverting (MAX8612/MAX8613) controller. Features ♦ 95% Efficient Synchronous-Rectified DC-DCs ♦ 90% Efficient Boost-Buck Operation ♦ 85% Efficient DC-DCs for CCD, LCD, WLED, and/or OLED ♦ Auxiliary Power for Motors (MAX8610/MAX8611/MAX8611V) ♦ Internal Compensation ♦ True Shutdown Step-Up Converters ♦ Overload Protection ♦ Soft-Start for Controlled Startup Current ♦ Low-Dropout (100% Duty Cycle) Step-Downs ♦ Regulated Current for Up to 6 White LEDS ♦ Open-LED Overvoltage Protection ♦ Transformerless Inverting Converter for CCD ♦ Adjustable 1MHz to 2MHz Switching Frequency ♦ 3% Frequency Accuracy ♦ 1µA Shutdown Supply Current ♦ CCD Voltage Sequencing ♦ Voltage Tracking for Core and Logic (MAX8611/MAX8613/MAX8611V) ♦ Compact 48-Pin, 6mm x 6mm Thin QFN Package The MAX8611/MAX8613/MAX8611V operate in 1-cell lithium-ion (Li+) and dual-battery (Li+ and 2 AA) designs. The MAX8610/MAX8612 operate in 2 AA designs. Applications DSCs and DVCs Ordering Information TEMP RANGE PINPACKAGE MAX8610ETM+** -40°C to +85°C 48 TQFN-EP* T4866-1 6mm x 6mm MAX8611ETM+ -40°C to +85°C 48 TQFN-EP* T4866-1 6mm x 6mm MAX8611VETM+** -40oC to +85°C 48 TQFN-EP* T4866-1 6mm x 6mm MAX8612ETM+** -40°C to +85°C 48 TQFN-EP* T4866-1 6mm x 6mm MAX8613ETM+** -40oC to +85°C 48 TQFN-EP* T4866-1 6mm x 6mm PART PDAs and MP3 Players True Shutdown is a trademark of Maxim Integrated Products, Inc. Typical Operating Circuit INPUT 1.5V TO 5.5V STEP-UP DC-DC BATT MAIN DC-DC ONSU ONM ONAFE ONSD VSU 5V VMAIN 3.3V AFE DC-DC VAFE 3.4V STEP-DOWN VCORE 1.4V REXT MAX8611 ONINV ONBST SEQCCD ONLED ONAUX CCDINV CCD -7.5V CCDBST CCD +15V LEDBST UP TO 6 WHITE LEDs AUX PKG CODE MOTOR 5V *EP = Exposed paddle. +Denotes lead-free package. **Future product—contact factory for availability. Selector Guide and Pin Configuration appear at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 MAX8610–MAX8613/MAX8611V General Description ABRIDGED 8-Channel PMICs for Digital Camera Power Supplies MAX8610–MAX8613/MAX8611V VBATT C25 1μF C15 0.22μF 20 PVINV 40 REF VBATT (3V TO 5V) 45 C1 22μF C2 22μF LXINV BATT 44 C3 22μF C4 22μF 43 42 LXSU PVSU SU GD PVBST VSU 4 C23 1μF VM 3.3V FBSU R3 232kΩ C6 22μF 5 C5 OPEN 6 C10 10μF 13 R5 40.2kΩ PVAFE 31 PVSD LXAFE LXSD FBAFE PVLED 17 39 3 15 36 R18 100kΩ ONSU PG2 ONM FBHLED ONSD FBLLED C20 OPEN VCCDBST 14V R9 1.3MΩ R10 100kΩ VSU 9 8 C24 1μF L3 3μH C7 22μF 7 C8 OPEN VAFE 3.4V R11 243kΩ 11 35 L7 10μH 34 R12 100kΩ VBATT C22* 1μF PGSD LXLED 46 L6 4.3μH D2 26 FBSD SWLED REF C12 10μF PGM PGAFE 16 C9 10μF (2x) 12 R6 100kΩ FBM R8 100kΩ VBATT 30 VBATT L4 4.7μH VSD 1.4V FBBST REXT 2 R4 100kΩ PVM LXM VBATT 29 PGSU LXBST L2 3μH 25 28 C21* 1μF SWBST 48 R2 100kΩ VCCDINV C19 -7.4V OPEN R7 604kΩ MAX8611 FBINV R1 402kΩ C11 10μF L5 10μH L1 1μH 47 VSU 5V D1 21 D3 C13 10μF 33 32 VLED R15 1.6MΩ WHITE LEDs R16 100kΩ 38 37 L8 10μH VBATT ONLED D4 22 27 10 14 1 ONBST DRVAUX C14 1μF 19 SEQCCD ONAFE FBAUX R17 10Ω 23 ONAUX CCAUX VAUX R13 1.1MΩ 24 R20 100kΩ C18 2.2nF R14 100kΩ ONINV PG1 18 EP GND 41 * C21, C22 ARE OPTIONAL. Figure 2. MAX8611 (Li+ or Combination Li+/2 AA Input) Typical Application Circuit. The MAIN (M) and AFE outputs operate as stepdown converters and are powered from the step-up (SU) for efficient boost-buck operation. ______________________________________________________________________________________ 21