19-3617; Rev 6; 7/07
ABRIDGED
8-Channel PMICs for
Digital Camera Power Supplies
General Description
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
KIT
ATION
EVALU
BLE
AVAILA
MAX8610–MAX8613/MAX8611V
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.
Ordering Information
PART
MAX8610ETM+**
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
PKG
CODE
Applications
DSCs and DVCs
PDAs and MP3 Players
True Shutdown is a trademark of Maxim Integrated Products, Inc.
48 TQFN-EP*
T4866-1
6mm x 6mm
48 TQFN-EP*
T4866-1
6mm x 6mm
48 TQFN-EP*
T4866-1
6mm x 6mm
48 TQFN-EP*
T4866-1
6mm x 6mm
48 TQFN-EP*
T4866-1
6mm x 6mm
Typical Operating Circuit
INPUT
1.5V TO 5.5V
BATT
ONSU
ONM
ONAFE
ONSD
STEP-UP DC-DC
MAIN DC-DC
AFE DC-DC
STEP-DOWN
REXT
V
SU
5V
V
MAIN
3.3V
V
AFE
3.4V
V
CORE
1.4V
MAX8611ETM+
MAX8611VETM+** -40
o
C to +85°C
MAX8612ETM+**
MAX8613ETM+**
-40°C to +85°C
-40
o
C to +85°C
MAX8611
CCDINV
ONINV
ONBST
SEQCCD
ONLED
ONAUX
CCDBST
LEDBST
AUX
CCD -7.5V
CCD +15V
UP TO 6 WHITE LEDs
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.
1
________________________________________________________________
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.
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