MAX8610 Datasheet, PDF (1/2 Pages) Maxim Integrated Products – 8-Channel PMICs for Digital Camera Power Supplies

19-3617; Rev 6; 7/07
EVAALVUAAILTAIOBNLEKIT
ABRIDGED
8-Channel PMICs for
Digital Camera Power Supplies
General Description
The MAX8610–MAX8613/MAX8611V are highly efficient
complete power-supply solutions for digital still cam-
eras (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.
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
PDAs and MP3 Players
True Shutdown is a trademark of Maxim Integrated Products, Inc.
Typical Operating Circuit
INPUT
1.5V TO 5.5V
BATT
STEP-UP DC-DC
ONSU
ONM
ONAFE
ONSD
ONINV
ONBST
SEQCCD
ONLED
ONAUX
MAIN DC-DC
AFE DC-DC
STEP-DOWN
MAX8611
REXT
CCDINV
CCDBST
LEDBST
AUX
V_SU 5V
V_MAIN 3.3V
V_AFE 3.4V
V_CORE 1.4V
CCD -7.5V
CCD +15V
UP TO 6 WHITE LEDs
MOTOR 5V
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
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX8610ETM+**
-40°C to +85°C
48 TQFN-EP*
6mm x 6mm
T4866-1
MAX8611ETM+
-40°C to +85°C
48 TQFN-EP*
6mm x 6mm
T4866-1
MAX8611VETM+** -40^oC to +85°C ^{48 TQFN-EP*} T4866-1
6mm x 6mm
MAX8612ETM+**
-40°C to +85°C
48 TQFN-EP*
6mm x 6mm
T4866-1
MAX8613ETM+** -40^oC to +85°C ^{48 TQFN-EP*} T4866-1
6mm x 6mm
*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 1
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.