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MAX1585ETJ+

Description
voltage regulators - switching regulators 5ch slim dsc power supply
CategoryPower/power management    The power supply circuit   
File Size462KB,29 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
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MAX1585ETJ+ Overview

voltage regulators - switching regulators 5ch slim dsc power supply

MAX1585ETJ+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeQFN
package instructionHVQCCN, LCC32,.2SQ,20
Contacts32
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time6 weeks
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage5.5 V
Minimum input voltage0.7 V
Nominal input voltage3.6 V
JESD-30 codeS-XQCC-N32
JESD-609 codee3
length5 mm
Humidity sensitivity level1
Number of functions5
Number of terminals32
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current3.6 A
Package body materialUNSPECIFIED
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC32,.2SQ,20
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height0.8 mm
surface mountYES
Switch configurationBUCK-BOOST
Maximum switching frequency1000 kHz
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperature30
width5 mm
Base Number Matches1
19-2883; Rev 0; 7/03
5-Channel Slim DSC Power Supplies
General Description
The MAX1584/MAX1585 provide a complete power-
supply solution for slim digital cameras. They improve
performance, component count, and size compared to
conventional multichannel controllers in 2-cell AA, 1-cell
Li+, and dual-battery designs. On-chip MOSFETs pro-
vide up to 95% efficiency for critical power supplies,
while additional channels operate with external FETs for
optimum design flexibility. This optimizes overall effi-
ciency and cost, while also reducing board space.
The MAX1584/MAX1585 include 5 high-efficiency DC-
DC conversion channels:
• Step-up DC-DC converter with on-chip FETs
• Step-down DC-DC converter with on-chip FETs
• Three PWM DC-DC controllers for CCD, LCD, LED,
or other functions
The step-down DC-DC converter can operate directly
from the battery or from the step-up output, providing
boost-buck capability with a compound efficiency of up
to 90%. Both devices include three PWM DC-DC con-
trollers: the MAX1584 includes two step-up controllers
and one step-down controller, while the MAX1585
includes one step-up controller, one inverting controller,
and one step-down controller. All DC-DC channels
operate at one fixed frequency—settable from 100kHz
to 1MHz—to optimize size, cost, and efficiency. Other
features include soft-start, power-OK outputs, and over-
load protection. The MAX1584/MAX1585 are available
in space-saving, 32-pin thin QFN packages. An evalua-
tion kit is available to expedite designs.
Features
Step-Up DC-DC Converter, 95% Efficient
Step-Down DC-DC Converter
Operate from Battery for 95% Efficient
Step-Down
90% Efficient Boost-Buck with Step-Up
Three Auxiliary PWM DC-DC Controllers
No Transformers (MAX1585)
Up to 1MHz Operating Frequency
1mA Shutdown Mode
Internal Soft-Start Control
Overload Protection
Compact 32-Pin Thin QFN Package (5mm x 5mm)
MAX1584/MAX1585
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
32 Thin QFN
5mm x 5mm
32 Thin QFN
5mm x 5mm
AUX
FUNCTIONS
2 step-up
1 step-down
1 step-up
1 step-down
1 inverting
MAX1584ETJ
-40°C to +85°C
MAX1585ETJ
-40°C to +85°C
Applications
GND
CC3
DL1
Pin Configuration
INDL2
25
24
23
22
CC2
FB2
PVSU
LXSU
PGSU
OSC
SCF
SDOK
21
20
19
18
17
9
ON1
10
ON2
11
ON3
12
ONSU
13
REF
14
FBSU
15
CCSU
16
AUX1OK
DL3
DL2
27
FB3
PV
26
Digital Cameras
PDAs
32
31
30
29
28
Typical Operating Circuit
CC1
FB1
PGSD
LXSD
1
2
3
4
5
6
7
8
INPUT
0.7V TO 5.5V
MAX1585
STEP-UP
STEP-DOWN
ONSU
ONSD
ON1
ON2
ON3
AUX1
AUX2
AUX3
SYSTEM +5V
CORE +1.8V
LCD, CCD, LED +15V
CCD -7.5V
LOGIC +3.3V
PVSD
ONSD
CCSD
FBSD
MAX1584
MAX1585
THIN QFN
5mm x 5mm
________________________________________________________________
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.

MAX1585ETJ+ Related Products

MAX1585ETJ+ MAX1585ETJ+T
Description voltage regulators - switching regulators 5ch slim dsc power supply voltage regulators - switching regulators 5ch slim dsc power supply
Is it lead-free? Lead free Lead free
Is it Rohs certified? conform to conform to
Maker Maxim Maxim
Parts packaging code QFN QFN
package instruction HVQCCN, LCC32,.2SQ,20 HVQCCN, LCC32,.2SQ,20
Contacts 32 32
Reach Compliance Code compliant compli
ECCN code EAR99 EAR99
Factory Lead Time 6 weeks 6 weeks
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 5.5 V 5.5 V
Minimum input voltage 0.7 V 0.7 V
Nominal input voltage 3.6 V 3.6 V
JESD-30 code S-XQCC-N32 S-XQCC-N32
JESD-609 code e3 e3
length 5 mm 5 mm
Humidity sensitivity level 1 1
Number of functions 5 5
Number of terminals 32 32
Maximum operating temperature 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C
Maximum output current 3.6 A 3.6 A
Package body material UNSPECIFIED UNSPECIFIED
encapsulated code HVQCCN HVQCCN
Encapsulate equivalent code LCC32,.2SQ,20 LCC32,.2SQ,20
Package shape SQUARE SQUARE
Package form CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius) 260 260
Certification status Not Qualified Not Qualified
Maximum seat height 0.8 mm 0.8 mm
surface mount YES YES
Switch configuration BUCK-BOOST BUCK-BOOST
Maximum switching frequency 1000 kHz 1000 kHz
technology BICMOS BICMOS
Temperature level INDUSTRIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) Matte Tin (Sn)
Terminal form NO LEAD NO LEAD
Terminal pitch 0.5 mm 0.5 mm
Terminal location QUAD QUAD
Maximum time at peak reflow temperature 30 30
width 5 mm 5 mm
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