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MAX8866REUA+T

P1-P3P4-P6P7-P9P10-P12
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
_______________General Description
The MAX8865 and MAX8866 dual, low-dropout linear
regulators operate from a +2.5V to +5.5V input range
and deliver up to 100mA. At 200mA total load, the
PMOS pass transistors keep the supply current at
145µA, 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 voltages are 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 external resistor dividers. Other
features include independent low-power shutdown,
short-circuit protection, thermal shutdown protection,
and reverse battery protection. The MAX8866 also
includes an auto-discharge function, which actively dis-
charges the selected output voltage to ground when
the device is placed in shutdown mode. Both devices
come in a miniature 8-pin µMAX package.
________________________Applications
Cordless Telephones Modems
PCS Telephones Hand-Held Instruments
Cellular Telephones Palmtop Computers
PCMCIA Cards Electronic Planners
____________________________Features
♦ Low Cost
♦ Low, 55mV Dropout Voltage @ 50mA I
OUT
♦ Low, 105µA No-Load Supply Current
♦ Low, 145µA Operating Supply Current (even in
dropout)
♦ Low, 350µV
RMS
Output Noise
♦ Independent, Low-Current Shutdown Control
♦ Thermal Overload Protection
♦ Output Current Limit
♦ Reverse Battery Protection
♦ Dual Mode Operation: Fixed or Adjustable (1.25V
to 5.5V) Outputs
MAX8865T/S/R, MAX8866T/S/R
Dual, Low-Dropout, 100mA Linear Regulators
________________________________________________________________
Maxim Integrated Products
1
TOP VIEW
1
2
3
4
8
7
6
5
SET1
SHDN1
SHDN2
SET2
OUT2
GND
IN
OUT1
MAX8865
MAX8866
µMAX
__________________Pin Configuration
MAX8865
MAX8866
OUT1
OUT2
GND SET2SET1
IN
SHDN1
C
OUT2
1µF
C
OUT1
1µF
C
IN
2µF
BATTERY
OUTPUT
VOLTAGE 2
OUTPUT
VOLTAGE 1
SHDN2
SHDN2
__________Typical Operating Circuit
19-0485; Rev 0; 4/96
PART
MAX8865TEUA
MAX8865SEUA
MAX8866TEUA
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-
PACKAGE
8 µMAX
8 µMAX
8 µMAX
______________Ordering Information
PRESET
V
OUT
(V)
3.15
2.84
3.15
MAX8866SEUA -40°C to +85°C 8 µMAX 2.84
Dual Mode is a trademark of Maxim Integrated Products.
MAX8865REUA -40°C to +85°C 8 µMAX 2.80
MAX8866REUA -40°C to +85°C 8 µMAX 2.80
MAX8865T/S/R, MAX8866T/S/R
Dual, Low-Dropout, 100mA Linear Regulators
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= +3.6V, GND = 0V, T
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°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.
V
IN
to GND ..................................................................-6V to +6V
Output Short-Circuit Duration ............................................Infinite
SET_ to GND ............................................................-0.3V to +6V
SHDN_ _ to GND............................................................-6V to +6V
SHDN_ _ to IN .............................................................-6V to +0.3V
OUT_ to GND...............................................-0.3V to (V
IN
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
µMAX (derate 4.1mW/°C above +70°C)......................330mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Thermal Resistance (θ
JA
)...............................................244°C/W
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
ms1
Shutdown to Output
Discharge Delay (MAX8866)
0 1000I
SHDN_ _
SHDN Input Bias Current
V
0.4V
IL
SHDN Input Threshold
2.0V
IH
µV
RMS
220
Output Voltage Noise
350
0.012 0.03
%/V-0.10 0 0.10∆V
LNR
Line Regulation
mV
55 120
Dropout Voltage (Note 4)
V2.5 5.5V
IN
Input Voltage (Note 1)
1.1
3.08 3.15 3.24
VV
SET_
5.5V
OUT_
Adjustable Output Voltage
Range (Note 2)
mA100Maximum Output Current
UNITSMIN TYP MAXSYMBOLPARAMETER
C
OUT
= 1µF, no load
V
SHDN_ _
= V
IN
V
IN
= 2.5V to 5.5V, SET_ tied to OUT_,
I
OUT_
= 1mA
I
OUT
= 50mA
CONDITIONS
mA220I
LIM
Current Limit (Note 3)
MAX886_T
10Hz to 1MHz
I
OUT
= 1mA
MAX886_S 2.77 2.84 2.91
105 270
0.16 3000 nAI
Q SHDN
Shutdown Supply Current V
OUT_
= 0V
nA
1.222 1.25 1.276V
SET_
V
IN
= 2.5V to 5.5V, I
OUT_
= 1mASET Reference Voltage (Note 2) V
0.015 50I
SET_
V
SET_
= 1.3V
SET Input Leakage Current
(Note 2)
nA
170T
SHDN
Thermal Shutdown Temperature °C
20∆T
SHDN
Thermal Shutdown Hysteresis °C
145
SET_ = GND µAI
Q
Ground Pin Current
I
OUT_
= 0mA to 50mA %/mA
0.006
∆V
LDR
Load Regulation
I
OUT_
= 50mA
I
OUT_
= 0mA
MAX886_R
V
2.73 2.80 2.87
V
OUT_
Output Voltage
0mA ≤ I
OUT
≤ 50mA,
SET_ = GND
SHUTDOWN
THERMAL PROTECTION
SET INPUT
SET_ = GND
SET_ tied to OUT_
C
OUT
= 1µF
C
OUT
= 100µF
MAX8865T/S/R, MAX8866T/S/R
Dual, Low-Dropout, 100mA Linear Regulators
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS
(V
IN
= +3.6V, GND = 0V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 5)
Note 1: Guaranteed by line regulation test.
Note 2: Adjustable mode only.
Note 3: Not tested. For design purposes, the current limit should be considered 120mA minimum to 320mA maximum.
Note 4: 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.
Note 5: Specifications to -40°C are guaranteed by design and not production tested.
MAX886_S 2.74 2.84 2.93
1.207 1.25 1.288
105 270
nA
MAX886_T
0.16 3000
I
OUT
= 1mA
nAI
Q SHDN
mA
Shutdown Supply Current
220
V
SET_
V
OUT_
= 0V
I
LIM
ms1
Shutdown to Output
Discharge Delay (MAX8866)
V
IN
= 2.5V to 5.5V, I
OUT_
= 1mASET Reference Voltage (Note 2)
0 1000
V
0.015 50
20
I
SHDN_ _
SHDN Input Bias Current
µV
RMS
220
Output Voltage Noise
∆T
SHDN
350
I
SET_
V
SET_
= 1.3V
SET Input Leakage Current
(Note 2)
Thermal Shutdown Hysteresis °C
nA
0.012 0.03
%/V-0.11 0 0.11∆V
LNR
Line Regulation
170T
SHDN
mV
55 120
Dropout Voltage (Note 4)
Thermal Shutdown Temperature °C
V2.5 5.5V
IN
Input Voltage (Note 1)
1.1
µA
3.05 3.15 3.26
VV
SET_
5.5V
OUT_
Adjustable Output Voltage
Range (Note 2)
mA80Maximum Output Current
UNITSMIN TYP MAXSYMBOLPARAMETER
C
OUT
= 1µF
V
SHDN_ _
= V
IN
10Hz to 1MHz
V
IN
= 2.5V to 5.5V,
SET_ tied to OUT_, I
OUT_
= 1mA
I
OUT
= 50mA
CONDITIONS
Current Limit (Note 3)
145
SET_ = GNDI
Q
Ground Pin Current
%/mA
0.006
∆V
LDR
Load Regulation
I
OUT_
= 50mA
I
OUT_
= 0mA
I
OUT_
= 0mA to 50mA
SET_ = GND
SET_ tied to OUT_
V
0.4V
IL
SHDN Input Threshold
2.0V
IH
C
OUT
= 1µF
C
OUT
= 100µF
MAX886_R
V
2.70 2.80 2.89
V
OUT_
Output Voltage
0mA ≤ I
OUT
≤ 50mA,
SET_ = GND
SHUTDOWN
SET INPUT
THERMAL PROTECTION
P1-P3P4-P6P7-P9P10-P12

MAX8866REUA+T

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Manufacturer:
Maxim Integrated
Description:
LDO Voltage Regulators 100mA Linear Regulato
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