MAX882EPA ,5V/3.3V or Adjustable, Low-Dropout, Low IQ, 200mA Linear RegulatorsApplicationsOrdering Information continued at end of data sheet.Pagers and Cellular Phones* Dice ar ..
MAX882ESA ,5V/3.3V or Adjustable, Low-Dropout, Low IQ, 200mA Linear RegulatorsELECTRICAL CHARACTERISTICS(V = 6V (MAX883) or V = 4.3V (MAX882/MAX884), C = 2.2µF, STBY or OFF = V ..
MAX882ESA ,5V/3.3V or Adjustable, Low-Dropout, Low IQ, 200mA Linear Regulatorsfeatures a 7µA standby mode that disablesStandby Modethe output but keeps the reference, low-batter ..
MAX882ESA+ ,5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 200mA Linear Regulator with Standby ModeApplicationsOrdering Information continued at end of data sheet.*Dice are tested at T = +25°C, DC p ..
MAX882ESA+T ,5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 200mA Linear Regulator with Standby ModeELECTRICAL CHARACTERISTICS(V = 6V (MAX883) or V = 4.3V (MAX882/MAX884), C = 2.2µF, STBY or OFF = V ..
MAX882ESA-T ,5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 200mA Linear Regulator with Standby ModeMAX882/MAX883/MAX88419-0275; Rev 4; 7/095V/3.3V or Adjustable, Low-Dropout, Low I , 200mA Linear Re ..
MB86434 ,5V Single Power Supply Audio Interface Unit (AIU)FUJITSU SEMICONDUCTORDS04-23003-1EDATA SHEETASSPCMOS5V Single Power Supply Audio Interface Unit (AI ..
MB86437PFV ,3 V Single Power Supply Audio Interface Unit (AIU)FUJITSU SEMICONDUCTORDS04-23005-3EDATA SHEETASSPCMOS3 V Single Power Supply Audio Interface Unit (A ..
MB86604L ,SCSI-II Protocol Controller (with single-ended driver/receiver)FUJITSU SEMICONDUCTORDS04-22415-1EDATA SHEETASSP Communication ControlCMOSSCSI-II Protocol Contr ..
MB86604LPFV ,SCSI-II Protocol Controller (with single-ended driver/receiver)FUJITSU SEMICONDUCTORDS04-22415-1EDATA SHEETASSP Communication ControlCMOSSCSI-II Protocol Contr ..
MB86606A ,FAST-20 SCSI Protocol ControllerFEATURESSCSI Protocol Controller Block:• Operable as initiator and target• WIDE and FAST-20 data tr ..
MB86626 , KeyWave AFE ADSL Analog Front End
MAX882CPA-MAX882CSA-MAX882EPA-MAX882ESA-MAX883CPA-MAX883CSA-MAX883EPA-MAX883ESA-MAX884CPA-MAX884CSA-MAX884ESA
5V/3.3V or Adjustable, Low-Dropout, Low IQ, 200mA Linear Regulators
_______________General DescriptionThe MAX882/MAX883/MAX884 linear regulators maxi-
mize battery life by combining ultra-low supply currents
and low dropout voltages. They feature 200mA output
current capability at up to +125°C junction temperature
and come in a 1.5W SOIC package. The 1.5W package
(compared to 0.47W for standard SOIC packages)
allows a wider operating range for the input voltage and
output current. The MAX882/MAX883/MAX884 use a P-
channel MOSFET pass transistor to maintain a low 11µA
(15µA max) supply current from no-load to the full
200mA output. Unlike earlier bipolar regulators, there are
no PNP base current losses that increase with output
current. And, in dropout, the MOSFET does not suffer
from excessive base currents that occur when PNP tran-
sistors go into saturation. Typical dropout voltages are
220mV at 5V and 200mA, or 320mV at 3.3V and 200mA.
The MAX882 features a 7µA standby mode that disables
the output but keeps the reference, low-battery compara-
tor, and biasing circuitry alive. The MAX883/MAX884 fea-
ture a shutdown (OFF) mode that turns off all circuitry,
reducing supply current to less than 1µA. All three
devices include a low-battery-detection comparator, fold-
back current limiting, reverse-current protection, and
thermal overload protection.
The output is preset at 3.3V for the MAX882/MAX884
and 5V for the MAX883. In addition, all devices employ
Dual Mode™ operation, allowing user-adjustable outputs
from 1.25V to 11V using external resistors. The input volt-
age supply range is 2.7V to 11.5V.
For low-dropout linear regulators with output currents up
to 500mA, refer to the MAX603/MAX604 data sheet.
________________________ApplicationsPagers and Cellular Phones
3.3V and 5V Regulators
1.25V to 11V Adjustable Regulators
High-Efficiency Linear Regulators
Battery-Powered Devices
Portable Instruments
Solar-Powered Instruments
____________________________FeaturesGuaranteed 200mA Output Current at = +125°C, with Foldback Current LimitingHigh-Power (1.5W) 8-Pin SO PackageDual Mode™Operation: Fixed or Adjustable
Output from 1.25V to 11VLarge Input Range (2.7V to 11.5V)Internal 1.1ΩP-Channel Pass Transistor
Draws No Base CurrentLow 220mV Dropout Voltage at 200mA
Output Current11µA Typical Quiescent Current1µA (max) Shutdown Mode or 7µA (typ)
Standby ModeLow-Battery Detection ComparatorReverse-Current ProtectionThermal Overload Protection
______________Ordering Information
MAX882/MAX883/MAX884
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 200mA Linear Regulators
________________________________________________________________Maxim Integrated Products1
__________________Pin Configuration
__________Typical Operating Circuit
Call toll free 1-800-998-8800 for free samples or literature.19-0275; Rev 0; 12/94
Ordering Information continued at end of data sheet.* Dice are tested at TJ= +25°C, DC parameters only.
** Contact factory for availability.
™Dual-Mode is a trademark of Maxim Integrated Products.
MAX882/MAX883/MAX884
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 200mA Linear Regulators
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VIN= 6V (MAX883) or VIN= 4.3V (MAX882/MAX884), COUT= 2.2µF, STBYor OFF= VIN, SET = GND, LBI = VIN, TJ= TMINto TMAX,
unless otherwise noted. Typical values are at TJ= +25°C.) (Note 1)
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.
Supply Voltage (IN or OUT to GND).......................-0.3V to +12V
Output Short-Circuit Duration.........................................1 minute
Continuous Output Current...............................................300mA
LBO Output Current............................................................50mA
LBO Output Voltage and LBI,
SET, STBY, OFFInput Voltages................-0.3V to the greater of
(IN + 0.3V) or (OUT + 0.3V)
Continuous Power Dissipation (TJ= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C)............727mW
High-Power SO (derate 18.75mW/°C above +70°C).......1.5W
CERDIP (derate 8.00mW/°C above +70°C).................640mW
Operating Temperature Ranges
MAX88_C_A........................................................0°C to +70°C
MAX88_E_A.....................................................-40°C to +85°C
MAX88_MJA..................................................-55°C to +125°C
Junction Temperature .....................................................+150°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
MAX882/MAX883/MAX884
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 200mA Linear Regulators
_______________________________________________________________________________________3
ELECTRICAL CHARACTERISTICS (continued)(VIN= 6V (MAX883) or VIN= 4.3V (MAX882/MAX884), COUT= 2.2µF, STBYor OFF= VIN, SET = GND, LBI = VIN, TJ= TMINto TMAX,
unless otherwise noted. Typical values are at TJ= +25°C.) (Note 1)
MAX882/MAX883/MAX884
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 200mA Linear Regulators_______________________________________________________________________________________
Note 1:Electrical specifications are measured by pulse testing and are guaranteed for a junction temperature (TJ) within the
operating temperature range, unless otherwise noted. When operating C and E grade parts up to a TJof +125°C, expect
performance similar to M grade specifications. For TJbetween +125°C and +150°C, the output voltage may drift more.
Note 2:(VIN- VOUT) is limited to keep the product (IOUTx (VIN- VOUT)) from exceeding the package power dissipation limits. See
Figure 5. Therefore, the combination of high output current and high supply voltage is not tested. Output current at = +125°C is guaranteed by guard banding tests at TJ= +85°C and +70°C.
Note 3:Dropout Voltage is (VIN- VOUT) when VOUTfalls to 100mV below its nominal value at VIN= (VOUT+ 2V). For example, the
MAX883 is tested by measuring the VOUTat VIN= 7V, then VINis lowered until VOUTfalls 100mV below the measured
value. The difference (VIN- VOUT) is then measured and defined as ΔVDO.
Note 4:Since standby mode inhibits the output but keeps all biasing circuitry alive, the Standby Quiescent Current is similar to the
normal operating quiescent current.
Note 5:Foldback Current Limit was characterized by pulse testing to remain below the maximum junction temperature (not
production tested).
Note 6:The Reverse-Current Protection Threshold is the output/input differential voltage (VOUT- VIN) at which reverse-current
protection switchover occurs and the pass transistor is turned off. See the section Reverse Current Protectionin the
Detailed Description.
Note 7:Noise is tested using a bandpass amplifier with two poles at 10Hz and two poles at 10kHz.
ELECTRICAL CHARACTERISTICS (continued)(VIN= 6V (MAX883) or VIN= 4.3V (MAX882/MAX884), COUT= 2.2µF, STBYor OFF= VIN, SET = GND, LBI = VIN, TJ= TMINto TMAX,
unless otherwise noted. Typical values are at TJ= +25°C.) (Note 1)
MAX882/MAX883/MAX884
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 200mA Linear Regulators
_______________________________________________________________________________________5
__________________________________________Typical Operating Characteristics(VIN= 7V for MAX883, VIN= 5.3V for MAX882/MAX884, OFFor STBY= VIN, SET = GND, LBI = VIN, LBO = OPEN, CIN= COUT= 2.2µF,= 1kΩ, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE AND QUIESCENT
CURRENT vs. LOAD CURRENT
MAX882/4-01
LOAD CURRENT (mA)
NORMALIZE OUTPUT VOLTAGE (%)
QUIESCENT CURRENT (
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX882/4-05
LOAD CURRENT (mA)
DROPPUT VOLTAGE (V)50100150200250300
QUIESCENT CURRENT
vs. TEMPERATUREMAX882/4-04
TEMPERATURE (°C)
QUIESCENT CURRENT (
OUTPUT VOLTAGE
vs. TEMPERATURE
MAX882/4-04a
TEMPERATURE (°C)
NORMALIZED OUTPUT VOLTAGE (%)
-55-35-15525456585105125
MAX882/MAX883/MAX884
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 200mA Linear Regulators_______________________________________________________________________________________LBO LOW VOLTAGE
vs. SINK CURRENT
MAX882/4-10
SINK CURRENT (mA)
LBO LOW VOLTAGE (V)
____________________________Typical Operating Characteristics (continued)(VIN= 7V for MAX883, VIN= 5.3V for MAX882/MAX884, OFFor STBY= VIN, SET = GND, LBI = VIN, LBO = OPEN, CIN= COUT= 2.2µF,= 1kΩ, TA = +25°C, unless otherwise noted.)
MAX882/MAX883/MAX884
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 200mA Linear Regulators
_______________________________________________________________________________________7
_______________Detailed DescriptionThe MAX882/MAX883/MAX884 are micropower, low-
dropout linear regulators designed primarily for battery-
powered applications. They feature Dual-Mode™
operation, allowing a fixed output of 5V for the MAX883
and 3.3V for the MAX882/MAX884, or an adjustable output
from 1.25V to 11V. These devices supply up to 200mA
while requiring less than 15µA quiescent current. As illus-
trated in Figure 1, they consist of a 1.20V reference, error
amplifier, MOSFET driver, P-channel pass transistor, dual-
mode comparator and feedback voltage divider.
The 1.20V reference is connected to the error amplifier’s
inverting input. The error amplifier compares this refer-
ence with the selected feedback voltage and amplifies
the difference. The MOSFET driver reads the error signal
and applies the appropriate drive to the P-channel pass
transistor. If the feedback voltage is lower than the refer-
ence, the pass transistor’s gate is pulled lower, allowing
more current to pass and increasing the output voltage. If
the feedback voltage is too high, the pass transistor gate
is pulled up, allowing less current to pass to the output.
The output voltage is fed back through either an inter-
nal resistor voltage divider connected to the OUT pin,
or an external resistor network connected to the SET
pin. The dual-mode comparator examines the SET pin
voltage and selects the feedback path used. If the SET
pin is below 65mV, internal feedback is used and the
output voltage is regulated to 5V for the MAX883 or
3.3V for the MAX882/MAX884. Additional blocks
include a foldback current limiter, reverse-current pro-
tection, a thermal sensor, shutdown or standby logic,
and a low-battery-detection comparator.
Internal P-Channel Pass TransistorThe MAX882/MAX883/MAX884 feature a 200mA P-
channel MOSFET pass transistor. This provides several
advantages over similar designs using PNP pass tran-
sistors, including longer battery life.
The P-channel MOSFET requires no base drive, which
reduces quiescent current considerably. PNP based reg-
ulators waste large amounts of current in dropout when
the pass transistor saturates. They also use high base-
drive currents under large loads. The MAX882/MAX883/
MAX884 do not suffer from these problems and consume
only 11µA of quiescent current during light loads, heavy
loads, and dropout.
Output Voltage SelectionThe MAX882/MAX883/MAX884 feature Dual Mode™
operation. In preset voltage mode, the MAX883’s out-
put is set to 5V and the MAX882/MAX884’s output is set
to 3.3V, using internal trimmed feedback resistors.
Select this mode by connecting SET to ground.
In preset voltage mode, impedances between SET and
ground should be less than 100kΩ. Otherwise, spurious
conditions could cause the voltage at SET to exceed
the 65mV dual-mode threshold.
______________________________________________________________Pin Description
MAX882/MAX883/MAX884
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 200mA Linear Regulators_______________________________________________________________________________________In adjustable mode, the user selects an output voltage
in the 1.25V to 11V range by connecting two external
resistors, used as a voltage divider, to the SET pin
(Figure 2).
The output voltage is set by the following equation:
where VSET= 1.20V.
To simplify resistor selection:
Since the input bias current at SET is nominally zero,
large resistance values can be used for R1 and R2 to
minimize power consumption without losing accuracy.
Up to 1.5MΩis acceptable for R2. Since the VSETtoler-
ance is less than ±40mV, the output can be set using
fixed resistors instead of trim pots.
Standby Mode (MAX882)The MAX882 has a standby feature that disconnects
the input from the output when STBYis brought low, but
keeps all other circuitry awake. In this mode, VOUT
drops to 0V, and the internal biasing circuitry (including
the low-battery comparator) remains on. The maximum
quiescent current during standby is 15µA. STBYis a
comparator input with the other input internally tied to
the reference voltage. Use a resistor network as shown
in Figure 3 to set a standby-mode threshold voltage for
undervoltage lockout. Connect STBYto IN for normal
operation.
OFF Mode (MAX883/MAX884)A low-logic input on the OFFpin shuts down the
MAX883/MAX884. In this mode, the pass transistor,
control circuit, reference, and all biases are turned off,
and the supply current is reduced to less than 1µA.
LBO is undefined in OFFmode. Connect OFFto IN for
normal operation.
Figure 1. MAX882/MAX883/MAX884 Functional Diagram
