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MAX8864SEUK+T

P1-P3P4-P6P7-P9P10-P10
_______________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 package.
________________________Applications
Cordless Telephones Modems
PCS Telephones Hand-Held Instruments
Cellular Telephones Palmtop Computers
PCMCIA Cards Electronic Planners
____________________________Features
o Low Cost
o Low, 55mV Dropout Voltage @ 50mA I
OUT
o Low, 68µA No-Load Supply Current
Low, 80µA Operating Supply Current (even in
dropout)
o Low, 350µV
RMS
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
MAX8863T/S/R, MAX8864T/S/R
Low-Dropout, 120mA Linear Regulators
SOT23
TOP VIEW
GND
OUT
IN
1
5
SET
SHDN
MAX8863
MAX8864
2
3
4
__________________Pin Configuration
MAX8863
MAX8864
OUT
GND SET
IN
SHDN
C
OUT
1µF
C
IN
1µF
BATTERY
OUTPUT
VOLTAGE
__________Typical Operating Circuit
19-0466; Rev 4; 7/12
1
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
______________Ordering Information
Dual Mode is a trademark of Maxim Integrated Products.
*
Alternate marking information: CY_ _ = MAX8863T,
CZ_ _ = MAX8863S, DA_ _ = MAX8864T, DB_ _ = MAX8864S
+
Denotes a lead(Pb)-free/RoHS-compliant package.
PART
TEMP RANGE
PIN-
PACKAGE
SOT TOP
MARK*
MAX8863TEUK+T
-40°C to +85°C 5 SOT23
AABE
MAX8863SEUK+T
-40°C to +85°C 5 SOT23
AABF
MAX8863REUK+T
-40°C to +85°C 5 SOT23
AABV
MAX8864TEUK+T
-40°C to +85°C 5 SOT23
AABG
MAX8864SEUK+T
-40°C to +85°C 5 SOT23
AABH
MAX8864REUK+T
-40°C to +85°C 5 SOT23
AABW
MAX8863T/S/R, MAX8864T/S/R
Low-Dropout, 120mA Linear Regulators
2
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= +3.6V, V
GND
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
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.
V
IN
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 (V
IN
+ 0.3V)
Continuous Power Dissipation (multilayer board, T
A
= +70°C)
SOT23 (3.9mW/°C above +70°C).............................312.6mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial
.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
SOT23
Junction-to-Ambient Thermal Resistance (θ
JA
)...............255.9°C/W
Junction-to-Case Thermal Resistance (θ
JC
)......................81°C/W
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage (Note 3) V
IN
2.5 6.5 V
MAX886_T 3.05 3.15 3.25
MAX886_S 2.75 2.84 2.93Output Voltage V
OUT
0mA ≤ I
OUT
≤ 50mA,
SET = GND
MAX886_R 2.70 2.80 2.88
V
Adjustable Output Voltage
Range (Note 4)
V
OUT
V
SET
6.5 V
Maximum Output Current 120 mA
Current Limit (Note 5) I
LIM
280 mA
I
LOAD
= 0mA 68 150
Ground Pin Current I
Q
SET = GND
I
LOAD
= 50mA 80
µA
I
OUT
= 1mA 1.1
D r op out V ol tag e ( N ote 6)
I
OUT
= 50mA 55 120
mV
Line Regulation ∆V
LNR
V
IN
= 2.5V to 6.5V, SET tied to OUT,
I
OUT
= 1mA
-0.15 0 +0.15 %/V
SET = GND 0.011 0.040
Load Regulation ∆V
LDR
I
OUT
= 0mA to 50mA
S E T ti ed to O U T 0.006
%/mA
C
OUT
= 1µF 350
Output Voltage Noise 10Hz to 1MHz
C
OUT
= 100µF 220
µV
RM S
SHUTDOWN
V
IH
2.0
SHDN Input Threshold
V
IL
0.4
V
MAX8863T/S/R, MAX8864T/S/R
Low-Dropout, 120mA Linear Regulators
3
__________________________________________Typical Operating Characteristics
(V
IN
= +3.6V, C
IN
= 1µF, C
OUT
= 1µF, T
A
= +25°C, MAX886_T, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= +3.6V, V
GND
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
Note 2: Limits are 100% production tested at T
A
= +25°C. Limits over the operating temperature range are guaranteed through cor-
relation using Statistical Quality Control (SQC) Methods.
Note 3: Guaranteed by line regulation test.
Note 4: Adjustable mode only.
Note 5: Not tested. For design purposes, the current limit should be considered 120mA minimum to 420mA maximum.
Note 6: The dropout voltage is defined as (V
IN
- V
OUT
) when V
OUT
is 100mV below the value of V
OUT
for V
IN
= V
OUT
+2V.
3.00
3.05
3.10
3.15
3.20
3.25
3.30
0 20 60 100
OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX8863/4-01
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
40 8010 30 7050 90
100
50
020 60 100
SUPPLY CURRENT
vs. LOAD CURRENT
60
90
MAX8863/4-02
LOAD CURRENT (mA)
SUPPLY CURRENT (µA)
40 8010 30 7050 90
80
70
95
55
85
75
65
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
012 4 6
OUTPUT VOLTAGE
vs. INPUT VOLTAGE
MAX8863/4-03
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
35
NO LOAD
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
T
A
= +25°C 0 100
SHDN Input Bias Current I
SHDN
V
SHDN
= V
IN
T
A
= T
MAX
0.05
nA
T
A
= +25°C 0.0001 1
Shutdown Supply Current I
QSHDN
V
OUT
= 0V
T
A
= T
MAX
0.02
µA
Shutdown Discharge Resistance
(MAX8864)
300 Ω
SET INPUT
T
A
= +25°C 1.225 1.25 1.275
Set Reference Voltage
(Note 4)
V
SET
V
IN
= 2.5V to 6.5V,
I
OUT
= 1mA
T
A
= T
MIN
to
1.215 1.25 1.285
V
T
A
= +25°C 0.015 2.5
Set Input Leakage Current
(Note 4)
I
SET
V
SET
= 1.3V
T
A
= T
MAX
0.5
nA
THERMAL PROTECTION
Thermal Shutdown Temperature T
SHDN
170 °C
Thermal Shutdown Hysteresis ∆T
SHDN
20 °C
P1-P3P4-P6P7-P9P10-P10

MAX8864SEUK+T

Mfr. #:
Buy MAX8864SEUK+T
Manufacturer:
Maxim Integrated
Description:
LDO Voltage Regulators 120mA Linear Regulato
Lifecycle:
New from this manufacturer.
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