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MAX1545ETL+T

Description
switching controllers dual-phase quick-pwm controller
CategoryPower/power management    The power supply circuit   
File Size714KB,43 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
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MAX1545ETL+T Overview

switching controllers dual-phase quick-pwm controller

MAX1545ETL+T Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeQFN
package instructionVQCCN,
Contacts40
Reach Compliance Codecompli
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage5.5 V
Minimum input voltage4.5 V
Nominal input voltage5 V
JESD-30 codeS-XQCC-N40
JESD-609 codee3
length6 mm
Humidity sensitivity level1
Number of functions1
Number of terminals40
Maximum operating temperature100 °C
Minimum operating temperature-40 °C
Package body materialUNSPECIFIED
encapsulated codeVQCCN
Package shapeSQUARE
Package formCHIP CARRIER, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height0.8 mm
surface mountYES
Switch configurationPHASE-SHIFT
Maximum switching frequency550 kHz
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceMATTE TIN
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width6 mm
19-2734; Rev 1; 9/03
IT
TION K
VALUA
E
BLE
AVAILA
Dual-Phase, Quick-PWM Controllers for
Programmable CPU Core Power Supplies
General Description
Features
Dual-Phase, Quick-PWM Controllers
±0.75% V
OUT
Accuracy Over Line, Load, and
Temperature (1.3V)
Active Voltage Positioning with Adjustable Gain
and Offset
5-Bit On-Board DAC
Mobile: 0.60V to 1.75V Output Range
Desktop: 1.10V to 1.85V Output Range
Selectable 100kHz/200kHz/300kHz/550kHz
Switching Frequency
4V to 28V Battery Input Voltage Range
Adjustable Slew-Rate Control
Drive Large Synchronous Rectifier MOSFETs
Output Overvoltage Protection (MAX1545 Only)
Undervoltage and Thermal-Fault Protection
Power Sequencing and Timing
Selectable Suspend Voltage (0.675V to 1.45V)
Soft-Shutdown
Selectable Single- or Dual-Phase Pulse Skipping
MAX1519/MAX1545
Applications
Desktop and Mobile P4 Computers
Multiphase CPU Core Supply
Voltage-Positioned Step-Down Converters
Servers/Desktop Computers
Low-Voltage, Digitally Programmable Power
Supplies
TIME
TON
SUS
S0
S1
SHDN
OFS
REF
ILIM
V
CC
1
2
3
4
5
6
7
8
9
10
40
39
38
37
36
35
34
33
32
CMP
V+
BSTS
LXS
DHS
DLS
CSN
CMN
CSP
TOP VIEW
31
PGND
The MAX1519/MAX1545 are dual-phase, Quick-PWM™,
step-down controllers for desktop and mobile Pentium
®
4
(P4) CPU core supplies. Dual-phase operation reduces
input ripple current requirements and output voltage rip-
ple while easing component selection and layout difficul-
ties. The Quick-PWM control scheme provides
instantaneous response to fast load-current steps. The
MAX1519/MAX1545 include active voltage positioning
with adjustable gain and offset, reducing power dissipa-
tion and bulk output capacitance requirements.
The MAX1519/MAX1545 are intended for two different
notebook CPU core applications: stepping down the bat-
tery directly or stepping down the 5V system supply to
create the core voltage. The single-stage conversion
method allows these devices to directly step down high-
voltage batteries for the highest possible efficiency.
Alternatively, two-stage conversion (stepping down the
5V system supply instead of the battery) at a higher
switching frequency provides the minimum possible
physical size.
The MAX1519/MAX1545 comply with Intel’s P4 specifi-
cations. The switching regulator features soft-start,
power-up sequencing, and soft-shutdown. The
MAX1519/MAX1545 also feature independent four-level
logic inputs for setting the suspend voltage (S0–S1).
The MAX1519/MAX1545 include output undervoltage
protection (UVP), thermal protection, and voltage regula-
tor power-OK (VROK) output. When any of these protec-
tion features detect a fault, the controller shuts down.
Additionally, the MAX1519/MAX1545 include overvoltage
protection.
The MAX1519/MAX1545 are available in low-profile, 40-
pin, 6mm x 6mm thin QFN packages. For other CPU
platforms, refer to the pin-to-pin compatible MAX1544
and MAX1532/MAX1546/MAX1547 data sheets.
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
40 Thin QFN 6mm
6mm
40 Thin QFN 6mm
6mm
MAX1519ETL
-40°C to +100°C
MAX1545ETL
-40°C to +100°C
Pin Configuration
30
29
28
27
26
25
24
23
22
21
11
12
13
14
15
16
17
18
19
20
MAX1519
MAX1545
V
DD
DLM
DHM
LXM
BSTM
VROK
D0
D1
D2
D3
CCV
GNDS
CCI
FB
SKIP
Quick-PWM is a trademark of Maxim Integrated Products, Inc.
Pentium is a registered trademark of Intel Corp.
THIN QFN
________________________________________________________________
Maxim Integrated Products
OAIN-
OAIN+
CODE
D4
GND
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

MAX1545ETL+T Related Products

MAX1545ETL+T MAX1545ETL+
Description switching controllers dual-phase quick-pwm controller switching controllers dual-phase quick-pwm controller
Is it lead-free? Lead free Lead free
Is it Rohs certified? conform to conform to
Parts packaging code QFN QFN
package instruction VQCCN, VQCCN,
Contacts 40 40
Reach Compliance Code compli compli
ECCN code EAR99 EAR99
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 4.5 V 4.5 V
Nominal input voltage 5 V 5 V
JESD-30 code S-XQCC-N40 S-XQCC-N40
JESD-609 code e3 e3
length 6 mm 6 mm
Humidity sensitivity level 1 1
Number of functions 1 1
Number of terminals 40 40
Maximum operating temperature 100 °C 100 °C
Minimum operating temperature -40 °C -40 °C
Package body material UNSPECIFIED UNSPECIFIED
encapsulated code VQCCN VQCCN
Package shape SQUARE SQUARE
Package form CHIP CARRIER, VERY THIN PROFILE CHIP CARRIER, 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 PHASE-SHIFT PHASE-SHIFT
Maximum switching frequency 550 kHz 550 kHz
technology BICMOS BICMOS
Temperature level INDUSTRIAL INDUSTRIAL
Terminal surface MATTE TIN 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 NOT SPECIFIED 30
width 6 mm 6 mm
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