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MAX1935ETA

Description
500mA, Low-Voltage Linear Regulator in Tiny QFN
CategoryPower/power management    The power supply circuit   
File Size202KB,10 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric Compare View All

MAX1935ETA Overview

500mA, Low-Voltage Linear Regulator in Tiny QFN

MAX1935ETA Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeQFN
package instructionTQFN-8
Contacts6
Reach Compliance Code_compli
ECCN codeEAR99
AdjustabilityADJUSTABLE
Maximum drop-back voltage 10.4 V
Nominal dropback voltage 10.259 V
JESD-30 codeS-PDSO-N8
JESD-609 codee0
length3 mm
Maximum grid regulation rate (%/V)0.125
Humidity sensitivity level1
Number of functions1
Output times1
Number of terminals8
Working temperatureTJ-Max150 °C
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current 10.5 A
Maximum output voltage 14.5 V
Minimum output voltage 10.8 V
Package body materialPLASTIC/EPOXY
encapsulated codeHVSON
Encapsulate equivalent codeSOLCC8,.12,25
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)240
Certification statusNot Qualified
Regulator typeADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height0.8 mm
surface mountYES
technologyCMOS
Terminal surfaceTin/Lead (Sn85Pb15)
Terminal formNO LEAD
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3 mm
Base Number Matches1
19-2599; Rev 0; 10/02
500mA, Low-Voltage Linear Regulator
in Tiny QFN
General Description
The MAX1935 low-dropout linear regulator operates
from a 2.25V to 5.5V supply and delivers a guaranteed
500mA load current with low 175mV dropout. The high-
accuracy (±1.5%) output voltage is preset at an inter-
nally trimmed voltage or can be adjusted from 0.8V to
4.5V with an external resistive-divider.
An internal PMOS pass transistor allows low 210µA
supply current, making this device ideal for portable
equipment such as personal digital assistants (PDAs),
cellular phones, cordless phones, and other equip-
ment, including base stations and docking stations.
Other features include an active-low, power-OK output
that indicates when the output is out of regulation, a
0.02µA shutdown mode, short-circuit protection, and
thermal-shutdown protection. The MAX1935 comes in a
tiny 1.9W, 8-pin 3mm x 3mm thin QFN package.
o
Guaranteed 500mA Output Current
o
Output Down to 0.8V
o
Low 175mV Dropout at 500mA
o
±1.5% Output Voltage Accuracy
Preset at 1.5V
Adjustable from 0.8V to 4.5V
o
Power-OK Output
o
Low 210µA Ground Current
o
0.02µA Shutdown Current
o
Thermal-Overload Protection
o
Output Current Limit
o
Tiny 1.9W, 8-Pin 3mm x 3mm Thin QFN Package
Features
MAX1935
Ordering Information
Applications
Notebook Computers
Cellular and Cordless Telephones
PDAs
Palmtop Computers
Base Stations
USB Hubs
Docking Stations
PART
MAX1935ETA
MAX1935ETA15
PART
MAX1935ETA*
MAX1935ETA15*
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 Thin QFN
3mm x 3mm
8 Thin QFN
3mm x 3mm
*Contact
factory for preset output voltages.
Selector Guide
OUTPUT
VOLTAGE
Adjustable
1.5V
TOP MARK
ADB
ADB
Typical Operating Circuit
R
POK
100kΩ
POK
TO
µC
V
IN
2.25V TO 5.5V
C
IN
1µF
ON
SHDN
OFF
GND
OUT
C
OUT
10µF
V
OUT
0.8V TO 4.5V
Pin Configuration
TOP VIEW
R
1
IN
IN
POK
SHDN
1
2
3
4
8
OUT
OUT
SET
GND
MAX1935
IN
SET
MAX1935
7
6
5
R
2
THIN QFN
3mm x 3mm
________________________________________________________________
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.

MAX1935ETA Related Products

MAX1935ETA MAX1935 MAX1935ETA15
Description 500mA, Low-Voltage Linear Regulator in Tiny QFN 500mA, Low-Voltage Linear Regulator in Tiny QFN 500mA, Low-Voltage Linear Regulator in Tiny QFN
Is it lead-free? Contains lead - Contains lead
Is it Rohs certified? incompatible - incompatible
Maker Maxim - Maxim
Parts packaging code QFN - QFN
package instruction TQFN-8 - HVSON,
Contacts 6 - 6
Reach Compliance Code _compli - _compli
ECCN code EAR99 - EAR99
Maximum drop-back voltage 1 0.4 V - 0.4 V
JESD-30 code S-PDSO-N8 - S-PDSO-N8
JESD-609 code e0 - e0
length 3 mm - 3 mm
Humidity sensitivity level 1 - 1
Number of functions 1 - 1
Number of terminals 8 - 8
Working temperatureTJ-Max 150 °C - 150 °C
Maximum output current 1 0.5 A - 0.5 A
Maximum output voltage 1 4.5 V - 4.5 V
Minimum output voltage 1 0.8 V - 0.8 V
Package body material PLASTIC/EPOXY - PLASTIC/EPOXY
encapsulated code HVSON - HVSON
Package shape SQUARE - SQUARE
Package form SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE - SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius) 240 - 240
Certification status Not Qualified - Not Qualified
Regulator type ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR - FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height 0.8 mm - 0.8 mm
surface mount YES - YES
Terminal surface Tin/Lead (Sn85Pb15) - Tin/Lead (Sn85Pb15)
Terminal form NO LEAD - NO LEAD
Terminal pitch 0.65 mm - 0.65 mm
Terminal location DUAL - DUAL
Maximum time at peak reflow temperature 20 - 20
width 3 mm - 3 mm
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