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MAX783SEBX-T

Description
Switching Controllers
CategoryPower/power management    The power supply circuit   
File Size276KB,28 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX783SEBX-T Overview

Switching Controllers

MAX783SEBX-T Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Parts packaging codeSSOP
package instructionSSOP, SOP36,.4,32
Contacts36
Reach Compliance Codenot_compliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesDUAL SWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage30 V
Minimum input voltage5.5 V
Nominal input voltage15 V
JESD-30 codeR-PDSO-G36
JESD-609 codee0
length15.415 mm
Humidity sensitivity level1
Number of functions1
Number of terminals36
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Nominal output voltage3.6 V
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSOP36,.4,32
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)240
Certification statusNot Qualified
Maximum seat height2.64 mm
Maximum supply current (Isup)0.3 mA
surface mountYES
Switch configurationPHASE-SHIFT
Maximum switching frequency330 kHz
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.8 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.495 mm
Base Number Matches1
19-0045; Rev 1; 5/94
Kit
tion cluded
lua
Eva tion In
rma
Info
Triple-Output Power-Supply Controller
for Notebook Computers
____________________________Features
o
o
o
o
o
o
o
Dual PWM Buck Controllers (+3.3V and +5V)
Dual PCMCIA VPP Outputs (0V/3.3V/5V/12V)
Two Precision Comparators or Level Translators
Power-Ready Status Output (
RDY5
)
95% Efficiency
Optimized for 6-Cell Applications
420µA Quiescent Current;
70µA in Standby (linear regulators alive)
25µA Shutdown Current
o
5.5V to 30V Input Range
o
Small SSOP Package
o
Fixed Output Voltages Available:
3.3V (standard)
3.45V (High-Speed Pentium™)
3.6V (PowerPC™)
_______________General Description
The MAX783 is a system-engineered power-supply controller
for notebook computers or similar battery-powered equipment.
It provides two high-performance step-down (buck) pulse-
width modulators (PWMs) for +3.3V/+5V and dual PCMCIA
VPP outputs powered by an integral flyback winding controller.
Other functions include dual, low-dropout, micropower linear
regulators for CMOS/RTC back up, and two precision low-
battery-detection comparators.
High efficiency (95% at 2A, greater than 80% at loads from
5mA to 3A) is achieved through synchronous rectification
and PWM operation at heavy loads, and Idle-Mode
TM
oper-
ation at light loads. The MAX783 uses physically small
components, thanks to high operating frequencies
(300kHz/200kHz) and a new current-mode PWM architec-
ture that allows for output filter capacitors as small as 30µF
per ampere of load. Line- and load-transient responses
are terrific, with a high 60kHz unity-gain crossover frequen-
cy that allows output transients to be corrected within four
or five clock cycles. Low system cost is achieved through
a high level of integration and the use of low-cost external
N-channel MOSFETs. The integral flyback winding con-
troller provides a low-cost, +15V high-side output that regu-
lates even in the absence of a load on the main output.
Other features include low-noise, fixed-frequency PWM
operation at moderate to heavy loads and a synchronizable
oscillator for noise-sensitive applications such as electro-
magnetic pen-based systems and communicating comput-
ers. The MAX783 is similar to the MAX782, except the fly-
back winding is on the 3.3V inductor instead of the 5V
inductor, the VPP outputs can be optionally programmed to
3.3V, and the device may be completely shut down.
MAX783
______________Ordering Information
PART
MAX783CBX
MAX783RCBX
TEMP. RANGE
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
36 SSOP
36 SSOP
V
OUT
3.3V
3.45V
Ordering Information continued on last page.
__________________Pin Configuration
TOP VIEW
ON3
1
SHDN
2
D1
3
D2
4
VH
5
Q2
6
Q1
7
RDY5
8
VPPA
9
VDD
10
VPPB
11
36
SS3
35
CS3
34
FB3
33
DH3
32
LX3
31
BST3
________________________Applications
Notebook Computers
Portable Data Terminals
Communicating Computers
Pen-Entry Systems
MAX783
30
DL3
29
V+
28
VL
27
FB5
26
PGND
25
DL5
24
BST5
23
LX5
22
DH5
21
CS5
20
SS5
19
ON5
_______Typical Application Diagram
+3.3V
5.5V
TO
30V
VPP
CONTROL
ON3
ON5
SYNC
SHDN
4
SUSPEND POWER
POWER
SECTION
µP
MEMORY
+5V
PERIPHERALS
GND
12
REF
13
SYNC
14
DA1
15
DA0
16
MAX783
LOW-BATTERY WARNING
VPP (0V/3.3V/5V/12V)
VPP (0V/3.3V/5V/12V)
DUAL
PCMCIA
SLOTS
DB1
17
DB0
18
SSOP
Idle-Mode is a trademark of Maxim Integrated Products. Pentium is a trademark of Intel. PowerPC is a trademark of IBM.
________________________________________________________________
Maxim Integrated Products
1
Call toll free 1-800-998-8800 for free samples or literature.

MAX783SEBX-T Related Products

MAX783SEBX-T MAX783EVKIT-SO MAX783CBX
Description Switching Controllers Power Management IC Development Tools Switching Controllers
Is it Rohs certified? incompatible - incompatible
Parts packaging code SSOP - SSOP
package instruction SSOP, SOP36,.4,32 - PLASTIC, SSOP-36
Contacts 36 - 36
Reach Compliance Code not_compliant - not_compliant
ECCN code EAR99 - EAR99
Analog Integrated Circuits - Other Types DUAL SWITCHING CONTROLLER - DUAL SWITCHING CONTROLLER
control mode CURRENT-MODE - CURRENT-MODE
Control Technology PULSE WIDTH MODULATION - PULSE WIDTH MODULATION
Maximum input voltage 30 V - 30 V
Minimum input voltage 5.5 V - 5.5 V
Nominal input voltage 15 V - 15 V
JESD-30 code R-PDSO-G36 - R-PDSO-G36
JESD-609 code e0 - e0
length 15.415 mm - 15.415 mm
Humidity sensitivity level 1 - 1
Number of functions 1 - 1
Number of terminals 36 - 36
Maximum operating temperature 85 °C - 70 °C
Nominal output voltage 3.6 V - 3.45 V
Package body material PLASTIC/EPOXY - PLASTIC/EPOXY
encapsulated code SSOP - SSOP
Encapsulate equivalent code SOP36,.4,32 - SOP36,.4,32
Package shape RECTANGULAR - RECTANGULAR
Package form SMALL OUTLINE, SHRINK PITCH - SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 240 - 245
Certification status Not Qualified - Not Qualified
Maximum seat height 2.64 mm - 2.64 mm
Maximum supply current (Isup) 0.3 mA - 0.3 mA
surface mount YES - YES
Switch configuration PHASE-SHIFT - PHASE-SHIFT
Maximum switching frequency 330 kHz - 330 kHz
Temperature level INDUSTRIAL - COMMERCIAL
Terminal surface Tin/Lead (Sn/Pb) - Tin/Lead (Sn/Pb)
Terminal form GULL WING - GULL WING
Terminal pitch 0.8 mm - 0.8 mm
Terminal location DUAL - DUAL
Maximum time at peak reflow temperature NOT SPECIFIED - NOT SPECIFIED
width 7.495 mm - 7.495 mm
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