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MAX8502ETC-T

Description
Switching Regulator, Current-mode, 2.25A, 1000kHz Switching Freq-Max, BICMOS, CQCC12, 4 X 4 MM, 0.80 MM HEIGHT, THIN, QFN-12
CategoryPower/power management    The power supply circuit   
File Size297KB,14 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric Compare View All

MAX8502ETC-T Overview

Switching Regulator, Current-mode, 2.25A, 1000kHz Switching Freq-Max, BICMOS, CQCC12, 4 X 4 MM, 0.80 MM HEIGHT, THIN, QFN-12

MAX8502ETC-T Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeQFN
package instructionHVQCCN,
Contacts12
Reach Compliance Codecompliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage5.5 V
Minimum input voltage2.6 V
Nominal input voltage3.6 V
JESD-30 codeS-CQCC-N12
JESD-609 codee0
length4 mm
Humidity sensitivity level1
Number of functions1
Number of terminals12
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current2.25 A
Package body materialCERAMIC, METAL-SEALED COFIRED
encapsulated codeHVQCCN
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)240
Certification statusNot Qualified
Maximum seat height0.8 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency1000 kHz
technologyBICMOS
Temperature levelINDUSTRIAL
Terminal surfaceTIN LEAD
Terminal formNO LEAD
Terminal pitch0.8 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width4 mm
19-2641; Rev 0; 10/02
IT
TION K
VALUA
E
BLE
AVAILA
PWM Buck Converters with Bypass FET
for N-CDMA/W-CDMA Handsets
General Description
Features
o
Integrated Bypass PFET
o
150mV Dropout at 600mA Load (Regardless of
External Inductor)
o
Dynamically Adjustable Output from 0.4V to
V
BATT
o
Externally Fixed Output from 1.25V to 2.5V with
Digitally Controlled High-Power Bypass Mode
(MAX8504)
o
1MHz Fixed-Frequency PWM Switching
o
600mA Guaranteed Output Current
o
10% to 100% Duty-Cycle Operation
o
Low Quiescent Current
280µA (typ) in Normal Mode
3.3mA (typ) in PWM Mode
0.1µA (typ) in Shutdown Mode
o
12-Pin Thin QFN (4mm x 4mm, 0.8mm max Height)
MAX8500–MAX8504
The MAX8500–MAX8504 PWM DC-to-DC buck converters
are optimized with integrated bypass FET (0.25Ω typ)
to provide power to the PA in N-CDMA and W-CDMA
cell phones. The devices have a low on-resistance FET
to bypass the external inductor for low dropout of only
150mV at 600mA load, regardless of inductor series
resistance. The supply voltage range is from 2.6V to
5.5V and the guaranteed converter output current is
600mA. The 1MHz PWM switching frequency allows for
small external components.
The MAX8500–MAX8503 are dynamically controlled to
provide varying output voltages from 0.4V to V
BATT
.
The LDO regulation point is slightly lower than the PWM
converter such that the transition into and out of dropout
is smooth, regardless of the inductor resistance. The
MAX8504 is programmed for fixed 1.25V to 2.5V output
with external resistors. It features a high-power bypass
mode that connects the output directly to the battery. All
devices are designed to achieve an output settling time
of less than 30µs for a full-scale change in output volt-
age and load current.
The MAX8500–MAX8504 are available in a 12-lead
4mm x 4mm thin QFN package (0.8mm max height).
Ordering Information
PART
MAX8500ETC
MAX8501ETC*
MAX8502ETC*
MAX8503ETC
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
12 Thin QFN
12 Thin QFN
12 Thin QFN
12 Thin QFN
12 Thin QFN
TOP
MARK
AABQ
AABU
AABS
Applications
N-CDMA/W-CDMA Cellular Phones
Wireless PDAs and Modems
Typical Operating Circuit
INPUT 2.6V TO 5.5V
10µF
BATT
SKIP
SHDN
REF
1MHz
OSC
PWM
LDO
REFIN
DAC
LX
OUT
4.7µH
OUTPUT 0.4V TO V
BATT
4.7µF
MAX8504ETC
*Future
product—contact factory for availability.
Pin Configuration
SHDN
12
SKIP
11
OUT
10
GND
REF
g
m
1
2
3
9
BATT
BATTP
LX
MAX8500–
MAX8504
8
7
REFIN
(FB)
COMP
PGND
R
C
8.2kΩ
C
C
1000pF
MAX8500-
MAX8503
GND
4
COMP
5
BATT
(HP)
6
PGND
Thin QFN 4mm x 4mm
( ) MAX8504 ONLY
________________________________________________________________
Maxim Integrated Products
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.

MAX8502ETC-T Related Products

MAX8502ETC-T MAX8501ETC+ MAX8501ETC-T MAX8500ETC+ MAX8503ETC+ MAX8504ETC+ MAX8502ETC+
Description Switching Regulator, Current-mode, 2.25A, 1000kHz Switching Freq-Max, BICMOS, CQCC12, 4 X 4 MM, 0.80 MM HEIGHT, THIN, QFN-12 Switching Regulator, Current-mode, 2.25A, 1000kHz Switching Freq-Max, BICMOS, CQCC12, 4 X 4 MM, 0.80 MM HEIGHT, THIN, QFN-12 Switching Regulator, Current-mode, 2.25A, 1000kHz Switching Freq-Max, BICMOS, CQCC12, 4 X 4 MM, 0.80 MM HEIGHT, THIN, QFN-12 Switching Regulator, Current-mode, 2.25A, 1000kHz Switching Freq-Max, BICMOS, CQCC12, 4 X 4 MM, 0.80 MM HEIGHT, THIN, QFN-12 Switching Regulator, Current-mode, 2.25A, 1000kHz Switching Freq-Max, BICMOS, CQCC12, 4 X 4 MM, 0.80 MM HEIGHT, THIN, QFN-12 Switching Regulator, Current-mode, 2.25A, 1000kHz Switching Freq-Max, BICMOS, CQCC12, 4 X 4 MM, 0.80 MM HEIGHT, THIN, QFN-12 Switching Regulator, Current-mode, 2.25A, 1000kHz Switching Freq-Max, BICMOS, CQCC12, 4 X 4 MM, 0.80 MM HEIGHT, THIN, QFN-12
Is it Rohs certified? incompatible conform to incompatible conform to conform to conform to conform to
Maker Maxim Maxim Maxim Maxim Maxim Maxim Maxim
Parts packaging code QFN QFN QFN QFN QFN QFN QFN
package instruction HVQCCN, HVQCCN, HVQCCN, HVQCCN, HVQCCN, HVQCCN, HVQCCN,
Contacts 12 12 12 12 12 12 12
Reach Compliance Code compliant compliant compliant compliant compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR
control mode CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Minimum input voltage 2.6 V 2.6 V 2.6 V 2.6 V 2.6 V 2.6 V 2.6 V
Nominal input voltage 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V
JESD-30 code S-CQCC-N12 S-CQCC-N12 S-CQCC-N12 S-CQCC-N12 S-CQCC-N12 S-CQCC-N12 S-CQCC-N12
JESD-609 code e0 e3 e0 e3 e3 e3 e3
length 4 mm 4 mm 4 mm 4 mm 4 mm 4 mm 4 mm
Humidity sensitivity level 1 1 1 1 1 1 1
Number of functions 1 1 1 1 1 1 1
Number of terminals 12 12 12 12 12 12 12
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
Maximum output current 2.25 A 2.25 A 2.25 A 2.25 A 2.25 A 2.25 A 2.25 A
Package body material CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED CERAMIC, METAL-SEALED COFIRED
encapsulated code HVQCCN HVQCCN HVQCCN HVQCCN HVQCCN HVQCCN HVQCCN
Package shape SQUARE SQUARE SQUARE SQUARE SQUARE SQUARE SQUARE
Package form CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius) 240 260 240 260 260 260 260
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm
surface mount YES YES YES YES YES YES YES
Switch configuration BUCK BUCK BUCK BUCK BUCK BUCK BUCK
Maximum switching frequency 1000 kHz 1000 kHz 1000 kHz 1000 kHz 1000 kHz 1000 kHz 1000 kHz
technology BICMOS BICMOS BICMOS BICMOS BICMOS BICMOS BICMOS
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface TIN LEAD Matte Tin (Sn) TIN LEAD Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
Terminal form NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD
Terminal pitch 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm
Terminal location QUAD QUAD QUAD QUAD QUAD QUAD QUAD
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
width 4 mm 4 mm 4 mm 4 mm 4 mm 4 mm 4 mm
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