MAX8862R-MAX8862TESE+ Fast Delivery |IC PHOENIX CO.,LIMITED

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MAX8862R-MAX8862TESE+
Low-Cost, Low-Dropout, Dual Linear Regulator
_______________General Description
The MAX8862 low-cost, low-dropout, dual linear voltage
regulator is ideal for battery-powered and portable
applications. The regulators have independent supply
inputs and provide 250mA and 100mA, respectively,
with a full-load dropout voltage of 160mV. Both regula-
tors use P-channel MOSFET pass transistors and main-
tain low quiescent current independent of load current.
In dropout, the MOSFET does not suffer from excessive
base currents, as do saturated PNP transistors.
The MAX8862 output voltage is preset to 4.95V (L),
3.175V (T), or 2.85V (R). This device employs Dual
Mode™ operation, allowing user-adjustable outputs
from +2V to +11V with external resistors. The input
supply-voltage range is 2.5V to 11.5V. Other features
include independent shutdown, power-good indicator,
short-circuit and reverse-battery protection, and ther-
mal shutdown.
The MAX8862’s regulators are ideal power supplies for
the radio and the microcontroller (μC) used in digital,
cordless, and PCS phones. The main regulator is opti-
mized for superior transient and dynamic response,
while the secondary regulator exhibits low-output, wide-
band noise.
The MAX8862 comes in a 16-pin SO package with a
lead frame that uses multiple GND pins as a heat sink
for additional thermal dissipation.
________________________Applications
Cellular PhonesCordless Phones
PCS PhonesPCMCIA Cards
ModemsHand-Held Instruments
Electronic Planners
____________________________FeaturesLow CostGuaranteed 250mA and 100mA Output Currents,
with Current LimitingDual Mode Operation:
Fixed or Adjustable Output from +2V to +11V+2.5V to +11.5V Input Range160mV Dropout Voltage at 200mA Output CurrentLow Supply Current—Even in Dropout
200μA Operating
<1μA ShutdownPower-Good IndicatorReverse-Battery ProtectionThermal Overload Protection
Low-Cost, Low-Dropout, Dual Linear Regulator
________________________________________________________________Maxim Integrated Products1
TOP VIEW
Narrow SO
MAX8862
IN1
SHDN1
PWROK1
GND
GND
OUT2
SET2
N.C.
N.C.
SET1
OUT1
GND
GND
REF2
SHDN2
IN2
__________________Pin Configuration
INPUT 1
2.5V TO 11.5V
INPUT 2
2.5V TO 11.5V
100k
OUTPUT 1
AT 250mA
OUTPUT 2
AT 100mA
3.3µF
1µF
2.2µF
0.1µF
1µF
GNDSET1SET2GND
OUT1OUT2MAX8862
SHDN1SHDN2
PWROK1REF2
IN1IN2
__________Typical Operating Circuit
19-1117; Rev 0; 8/96
SUFFIX2.85
FIXED OUTPUT VOLTAGE (V)
______________Ordering Information
*Insert the desired suffix letter (from the table below) into the
blank to complete the part number.
& the latest literature: http://,
PART*
MAX8862_ESE-40°C to +85°C
TEMP. RANGEPIN-PACKAGE
16 Narrow SO
Dual Mode is a trademark of Maxim Integrated Products.
VRMSLow-Cost, Low-Dropout, Dual Linear Regulator_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS (Notes 2, 3)
(VIN_= VOUT_(TYP)+ 1V, TA= 0°C to +85°C, unless otherwise noted. Typical values are at TA= +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.
IN1, IN2 to GND (Note 1).....................................................±12V
SET1, SHDN1, PWROK1 to GND..............-0.3V to (VIN1+ 0.3V)
SET2,SHDN2, REF2 to GND.......................-0.3V, (VIN2+ 0.3V)
Output Short-Circuit Duration............................................Infinite
Continuous Power Dissipation (TA= +70°C)
16-Pin Narrow SO (derate 20mW/°C above +70°C)...............1W
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec)............................+300°C
IOUT2= 100mA, MAX8862R
VIN1= VIN2= 11.5V
IOUT1= 200mA, MAX8862R
IOUT2= 100mA, MAX8862L/T
IOUT2
IOUT1
0mA < IOUT1≤250mA,
0mA < IOUT2≤100mA
VIN1= 2.5V min, VOUT1= 2V
IOUT1= 200mA, MAX8862L/T
VIN2= 2.5V min, VOUT2= 2V
IOUT1= IOUT2= 1mA
CONDITIONS
%/mA0.02Load Regulation0.015
%/V
Line Regulation
Dropout Voltage (Note 4)
4.804.955.152.511.5Input Voltage Range0.011Shutdown Supply Current200330Quiescent Current250Current Limit580
2.752.852.95211Output Voltage Range
250mA100Maximum Output Current
UNITSMINTYPMAXPARAMETER
Note 1:Connect SHDN1to IN1 and SHDN2to IN2 through 20kΩresistors to limit current flow in case a battery is reversed.
REF2 Output VoltageCREF2= 0.1μF1.2301.2501.270V
REF2 Line RegulationVIN2= 2.5V to 11.5V1mV
MAX8862L
MAX8862T
MAX8862R
VIN1= (VOUT1 (TYP)+ 1V)
to 11.5V
VIN2= (VOUT2 (TYP)+ 1V)
to 11.5V
REF2 Load RegulationIREF2= 0μA to 10μA6mV
Output Voltage
IOUT1= IOUT2= 15mA
IOUT1= 0mA to 250mA, COUT1= 3.3μF
IOUT2= 0mA to 100mA, COUT2= 2.2μF
COUT2= 2.2mF
ZOUT2= 10mA
10Hz < f < 100kHz
10Hz < f < 1MHz875
COUT2= 100mF
ZOUT2= 10mA
10Hz < f < 100kHz
10Hz < f < 1MHz
mVRMS
OUT2 Voltage Noise211
REFERENCE
Low-Cost, Low-Dropout, Dual Linear Regulator
_______________________________________________________________________________________3
ELECTRICAL CHARACTERISTICS (Notes 2, 3)
(VIN_= VOUT_(TYP)+ 1V, TA= 0°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.)
ELECTRICAL CHARACTERISTICS (Notes 2, 3)
(VIN_= VOUT_(TYP)+ 1V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.)
VPWROK1= 11.5V
Rising edge at SET1
SET_ = OUT_, IOUT1= IOUT2= 15mA
External feedback
VSHDN_= 11.5V
Active mode, VIN_= 11.5V
ISINK= 0.5mA
Internal feedback
Shutdown mode, VIN_= VOUT_(TYP)+ 1V to 11.5V
VSET_= 1.30V
CONDITIONS20Thermal Shutdown Hysteresis
160Thermal Shutdown Temperature250SET_ Threshold0.010.1SET_ Input Bias Current0.011PWROK1 Leakage Current15PWROK1 Hysteresis1.231.251.28SET_ Reference Voltage0.011SHDN_Leakage Current1.8SHDN_Logic High25200PWROK1 Low Voltage0.45SHDN_Logic Low
UNITSMINTYPMAXPARAMETER
Falling edge at SET1V1.1751.2001.225PWROK1 Trip Voltage
SHDN
PWROK1 OUTPUT
SET_ INPUT
THERMAL PROTECTION
IOUT2= 100mA, MAX8862R
VIN1= VIN2= 11.5V
IOUT1= 200mA, MAX8862R
IOUT2= 100mA, MAX8862L/T
IOUT2
IOUT1
0mA < IOUT1≤250mA,
0mA < IOUT2≤100mA
VIN1= 2.5V min, VOUT1= 2V
IOUT1= 200mA, MAX8862L/T
VIN2= 2.5V min, VOUT2= 2V
IOUT1= IOUT2= 1mA
CONDITIONS
MAX8862L
MAX8862T
MAX8862R
Dropout Voltage (Note 4)
4.804.955.152.511.5Input Voltage Range0.011Shutdown Supply Current200330Quiescent Current250Current Limit580
Output Voltage211Output Voltage Range
250mA100Maximum Output Current
UNITSMINTYPMAXPARAMETER
Low-Cost, Low-Dropout, Dual Linear Regulator_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (Notes 2, 3) (continued)
(VIN_= VOUT_(TYP)+ 1V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.)
REF2 Load Regulation
IOUT1= 0 to 250mA, COUT1= 3.3μF
IREF2= 0μA to 10μA6mV
CONDITIONS
%/mA0.02Load Regulation0.015
%/V
Line Regulation
VIN1= (VOUT1 (TYP)+ 1V)
to 11.5V0.030.12
VIN2= (VOUT2 (TYP)+ 1V)
to 11.5V
UNITSMINTYPMAXPARAMETER277-
REF2 Output VoltageCREF2= 0.1μF1.2171.2501.277V
REF2 Line RegulationVIN2= 2.5V to 11.5V1mV
PWROK1 Trip Voltage Falling edge at SET11.1651.2001.235V
PWROK1 HysteresisRising edge at SET115mV
PWROK1 Leakage CurrentVPWROK1= 11.5V0.011μA
PWROK1 Low VoltageISINK= 0.5mA25200mV
SHDN_Logic Low
SHDN_Logic HighActive mode, VIN_= 11.5V2.0V
SHDN_Leakage CurrentVSHDN_= 11.5V0.021μA
SET_ Reference VoltageSET_ = OUT_, IOUT1= IOUT2= 15mA1.2201.2501.290V
SET_ Input Bias CurrentVSET_= 1.30V0.010.1μA
Internal feedback30SET_ ThresholdExternal feedback250mV
Thermal Shutdown Temperature160
Thermal Shutdown Hysteresis10°C
Note 2:Guaranteed by design for TA= -40°C.
Note 3:Guaranteed for a junction temperature (TJ) equal to the operating temperature range. E-grade parts are guaranteed by
design to operate up to TJ= +125°C. For TJabove +125°C, specifications exceed the operating limits.
Note 4:Dropout voltage is (VIN_ - VOUT_) when VOUT_ falls to 100mV below its nominal value at VIN_ = (VOUT_ + 1V). For example,
the MAX8862 is tested by measuring the VOUT_ at (VIN_= 5.95V for the MAX8862L, VIN_= 4.175V for the MAX8862T, and
VIN_= 3.85V for the MAX8862R) then VIN_is lowered until VOUT_falls 100mV below the measured value.
0.45VShutdown mode, VIN_= VOUT_(TYP)+ 1V to 11.5V
IOUT1= IOUT2= 15mA
C = 2.2μF, ZOUT2= 10mA-875-
COUT2= 2.2μF, 10Hz < f < 1MHz, IOUT2= 10mA
10Hz < f < 100kHz
C = 100μF, ZOUT2= 10mA-667-
10Hz < f < 100kHzOUT2 Voltage Noise-211-μVRMS
REFERENCE
PWROK1 OUTPUT
SHDN
SET_ INPUT
THERMAL PROTECTION
10Hz < f < 1MHz
10Hz < f < 1MHz
Low-Cost, Low-Dropout, Dual Linear Regulator
_______________________________________________________________________________________5
QUIESCENT CURRENT
vs. LOAD CURRENT
AX8862 TOC03
LOAD CURRENT (mA)
T C
T (µ
IQ2
IQ1
SHUTDOWN CURRENT
vs. TEMPERATURE
TEMPERATURE (°C)
(n
MAX8862 TOC01
VIN1 = VIN2 = 7V
VIN1 = VIN2 = 12V
QUIESCENT CURRENT
vs. TEMPERATURE
TEMPERATURE (°C)
(µ
MAX8862 TOC02
VIN1 = VIN2 = 12V
VIN1 = VIN2 = 7V
VOUT1/VOUT27
MAX8862T
OUTPUT VOLTAGE & QUIESCENT CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
(V356
AX8862TOC059101112
(IQ1 + IQ2)
IES
(µ
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX8862TOC07
LOAD CURRENT (mA)
(m
OUT1
OUT2
OUTPUT VOLTAGE
vs. TEMPERATURE
TEMPERATURE (°C)
(V
AX8862TOC06100
OUT1
OUT2
OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX8862TOC04
LOAD CURRENT (mA)
(%
VOUT1
VOUT2
__________________________________________Typical Operating Characteristics
(VIN1= VIN2= 5.3V, CIN1= CIN2= 1μF, COUT1= 3.3μF, COUT2= 2.2μF, SHDN1= IN1, SHDN2= IN2. TA= +25°C, unless
otherwise noted.)
OVERSHOOT AND TIME
EXITING SHUTDOWN MODE
MAX8862TOC14
20µs/div
VIN1 = 5.3V, IOUT1 = 5mA
A = SHDN1, 0.8V TO 2.4V, 1V/div
B = OUT1, 1V/div
0V
1V/div
1V/div
Low-Cost, Low-Dropout, Dual Linear Regulator_______________________________________________________________________________________
____________________________Typical Operating Characteristics (continued)
(VIN1= VIN2= 5.3V, CIN1= CIN2= 1μF, COUT1= 3.3μF, COUT2= 2.2μF, SHDN1= IN1, SHDN2= IN2. TA= +25°C, unless
otherwise noted.)
OUT1 LOAD-TRANSIENT RESPONSE
2ms/div
300mA
MAX8862TOC10
0mA
50mV/div
VIN1 = 7V, VOUT1 = 3.2V
A = LOAD CURRENT, 0mA TO 300mA, 0.2A/div
B = VOUT1 RIPPLE, 50mV/div, AC COUPLED
OUT2 LOAD-TRANSIENT RESPONSE
MAX8862TOC11
2ms/div
0mA
50mV/div
VIN2 = 7V, VOUT2 = 3.2V
A = LOAD CURRENT, 0mA TO 200mA, 0.2A/div
B = VOUT2 RIPPLE, 50mV/div, AC COUPLED
200mA
OUT2 LINE-TRANSIENT RESPONSE
1ms/div
5.5V
6.5V
IOUT2 = 200mA, VOUT2 = 3.2V
A = VIN2, 5.5V TO 6.5V, 1V/div
B = VOUT2 RIPPLE, 50mV/div, AC COUPLED
MAX8862TOC12
50mV/div
OUT1 LINE-TRANSIENT RESPONSE
MAX8862TOC13
1ms/div
5.5V
6.5V
IOUT1 = 300mA, VOUT1 = 3.2V
A = VIN1 = 5.5V TO 6.5V, 1V/div
B = VOUT1 RIPPLE, 50mV/div, AC COUPLEDA50mV/div
OUT2 NOISE AND RIPPLE
5µs/div
VOUT
500µV/div
IOUT2 = 100mA, AC COUPLED
MAX8862TOC09
OUT1 NOISE AND RIPPLE
MAX8862TOC08
5µs/div
VOUT
1mV/div
IOUT1 = 250mA, AC COUPLED

Partno	Mfg	Dc	Qty	Available	Descript
MAX8862R	MAX	N/a	10	avai	Low-Cost, Low-Dropout, Dual Linear Regulator
MAX8862TESE+	MAXIM	N/a	1500	avai	Low-Cost, Low-Dropout, Dual Linear Regulator