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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX8863T Datasheet

120mA Linear Regulators

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MAX8863T pdf
19-0466; Rev 2; 11/98
Low-Dropout, 120mA Linear Regulators
_______________General Description
The MAX8863T/S/R and MAX8864T/S/R low-dropout lin-
ear regulators operate from a +2.5V to +6.5V input
range and deliver up to 120mA. A PMOS pass transis-
tor allows the low, 80µA supply current to remain inde-
pendent of load, making these devices ideal for
battery-operated portable equipment such as cellular
phones, cordless phones, and modems.
The devices feature Dual Mode™ operation: their out-
put voltage is preset (at 3.15V for the T versions, 2.84V
for the S versions, or 2.80V for the R versions) or can be
adjusted with an external resistor divider. Other fea-
tures include low-power shutdown, short-circuit protec-
tion, thermal shutdown protection, and reverse battery
protection. The MAX8864 also includes an auto-dis-
charge function, which actively discharges the output
voltage to ground when the device is placed in shut-
down mode. Both devices come in a miniature 5-pin
SOT23-5 package.
________________________Applications
Cordless Telephones
Modems
PCS Telephones
Hand-Held Instruments
Cellular Telephones
Palmtop Computers
PCMCIA Cards
Electronic Planners
__________Typical Operating Circuit
____________________________Features
o Low Cost
o Low, 55mV Dropout Voltage @ 50mA IOUT
o Low, 68µA No-Load Supply Current
Low, 80µA Operating Supply Current (even in
dropout)
o Low, 350µVRMS Output Noise
o Miniature External Components
o Thermal Overload Protection
o Output Current Limit
o Reverse Battery Protection
o Dual Mode™ Operation: Fixed or Adjustable
(1.25V to 6.5V) Output
o Low-Power Shutdown
______________Ordering Information
PART
TEMP. RANGE
PIN-
PACKAGE
SOT TOP
MARK*
MAX8863TEUK-T -40°C to +85°C 5 SOT23-5 AABE
MAX8863SEUK-T -40°C to +85°C 5 SOT23-5 AABF
MAX8863REUK-T -40°C to +85°C 5 SOT23-5 AABV
MAX8864TEUK-T -40°C to +85°C 5 SOT23-5 AABG
MAX8864SEUK-T -40°C to +85°C 5 SOT23-5 AABH
MAX8864REUK-T -40°C to +85°C 5 SOT23-5 AABW
*Alternate marking information: CY_ _ = MAX8863T,
CZ_ _ = MAX8863S, DA_ _ = MAX8864T, DB_ _ = MAX8864S
__________________Pin Configuration
BATTERY
CIN
1µF
IN OUT
MAX8863
MAX8864
SHDN
GND SET
OUTPUT
VOLTAGE
COUT
1µF
TOP VIEW
SHDN 1
5 SET
MAX8863
GND 2 MAX8864
IN 3
OUT
4
SOT23-5
Dual Mode is a trademark of Maxim Integrated Products.
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX8863T Datasheet

120mA Linear Regulators

No Preview Available !

MAX8863T pdf
Low-Dropout, 120mA Linear Regulators
ABSOLUTE MAXIMUM RATINGS
VIN to GND ..................................................................-7V to +7V
Output Short-Circuit Duration ............................................Infinite
SET to GND ..............................................................-0.3V to +7V
SHDN to GND..............................................................-7V to +7V
SHDN to IN ...............................................................-7V to +0.3V
OUT to GND ................................................-0.3V to (VIN + 0.3V)
Continuous Power Dissipation (TA = +70°C)
SOT23-5 (derate 7.1mW/°C above +70°C) .................571mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
θJA ..............................................................................140°C/Watt
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VIN = +3.6V, GND = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Input Voltage (Note 2)
Output Voltage
Adjustable Output Voltage
Range (Note 3)
Maximum Output Current
Current Limit (Note 4)
Ground Pin Current
Dropout Voltage (Note 5)
Line Regulation
Load Regulation
Output Voltage Noise
SHUTDOWN
SHDN Input Threshold
SHDN Input Bias Current
Shutdown Supply Current
Shutdown Discharge
Resistance (MAX8864)
SYMBOL
VIN
VOUT
CONDITIONS
0mA IOUT 50mA,
SET = GND
MAX886_T
MAX886_S
MAX886_R
MIN
2.5
3.05
2.75
2.70
VOUT
VSET
ILIM
IQ
VLNR
VLDR
120
SET = GND
IOUT = 1mA
IOUT = 50mA
ILOAD = 0mA
ILOAD = 50mA
VIN = 2.5V to 6.5V, SET tied to OUT,
IOUT = 1mA
IOUT = 0mA to 50mA
SET = GND
SET tied to OUT
10Hz to 1MHz
COUT = 1µF
COUT = 100µF
-0.15
TYP
3.15
2.84
2.80
280
68
80
1.1
55
0
0.011
0.006
350
220
MAX
6.5
3.25
2.93
2.88
UNITS
V
V
6.5 V
mA
mA
150
µA
mV
120
0.15 %/V
0.040
%/mA
µVRMS
VIH
VIL
ISHDN
VSHDN = VIN
IQSHDN VOUT = 0V
TA = +25°C
TA = TMAX
TA = +25°C
TA = TMAX
2.0
0.4
0 100
0.05
0.0001 1
0.02
300
V
nA
µA
2 _______________________________________________________________________________________


Part Number MAX8863T
Description 120mA Linear Regulators
Maker Maxim
Total Page 8 Pages
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