MAX1658ESA ,350mA / 16.5V Input / Low-Dropout Linear RegulatorsELECTRICAL CHARACTERISTICS(V = 5V (MAX1658), V = 6V (MAX1659); C = 10µF; SHDN = IN; T = T to T ; un ..
MAX1658ESA ,350mA / 16.5V Input / Low-Dropout Linear RegulatorsApplicationsDigital Cordless Phones______________Ordering InformationPCS PhonesCellular PhonesPART ..
MAX1658ESA+ ,350mA, 16.5V Input, Low-Dropout Linear RegulatorsFeaturesThe MAX1658/MAX1659 linear regulators maximize ● Wide Input Voltage Range: 2.7V to 16.5Vba ..
MAX1658ESA+ ,350mA, 16.5V Input, Low-Dropout Linear RegulatorsApplicationsPART TEMP RANGE PIN-PACKAGE● Digital Cordless PhonesMAX1658C/D 0°C to +70°C Dice*● PCS ..
MAX1658ESA+T ,350mA, 16.5V Input, Low-Dropout Linear RegulatorsMAX1658/MAX1659 350mA, 16.5V Input,Low-Dropout Linear Regulators
MAX1658ESA+T ,350mA, 16.5V Input, Low-Dropout Linear RegulatorsElectrical Characteristics(V = 5V (MAX1658), V = 6V (MAX1659); C = 10μF; SHDN = IN; T = T to T ; un ..
MAX4416ESA+ ,Low-Power, +3V/+5V, 400MHz Single-Supply Op Amps with Rail-to-Rail OutputsELECTRICAL CHARACTERISTICS(V = +2.7V to +5.5V, V = V /2 - 0.75V, V = 0, R = ∞ to V /2, V = V /2, T ..
MAX4417ESA+ ,Low-Power, +3V/+5V, 400MHz Single-Supply Op Amps with Rail-to-Rail OutputsApplicationsTypical Operating Characteristic_Selector GuideSUPPLY CURRENT vs. SUPPLY VOLTAGE (PER A ..
MAX4418EUD+T ,Low-Power, +3V/+5V, 400MHz Single-Supply Op Amps with Rail-to-Rail OutputsFeaturesThe MAX4414–MAX4419 operational amplifiers com- Ultra-Low 1.6mA Supply Currentbine high-sp ..
MAX441CPP ,High-Speed Video Multiplixer/AmplifierFeatures
. 160MHz Unity Galn Bandwidth
. 110MHz Bandwidth (Av = 6dB)
. 0.037004% Differential ..
MAX441CWP ,High-Speed Video Multiplixer/Amplifierapplications with a closed-loop gain of 6dB or greater.
An enable control on the MAX44O places the ..
MAX441EPP ,High-Speed Video Multiplixer/AmplifierGeneral Description
The MAX44O and MAX441 combine a unity-gain stable,
wideband video amplifier ..
MAX1658ESA-MAX1659ESA
350mA / 16.5V Input / Low-Dropout Linear Regulators
_______________General DescriptionThe MAX1658/MAX1659 linear regulators maximize bat-
tery life by combining ultra-low supply currents and low
dropout voltages. They feature Dual Mode™ operation,
which presets the output to 3.3V (MAX1658) or 5V
(MAX1659), or permits it to be adjusted between 1.25V
and 16V. The regulator supplies up to 350mA, with a
typical dropout of 650mV for the MAX1658 and 490mV
for the MAX1659. With their P-channel MOSFET pass
transistor, these devices maintain a low quiescent cur-
rent from zero output current to the full 350mA, even in
dropout. They support input voltages ranging from 2.7V
to 16.5V.
The MAX1658/MAX1659 feature a 1µA shutdown mode,
reverse battery protection, short-circuit protection, and
thermal shutdown. They are available in a special high-
power (1.2W), 8-pin SO package designed specifically
for compact applications.
________________________ApplicationsDigital Cordless Phones
PCS Phones
Cellular Phones
PCMCIA Cards
Modems
Hand-Held Instruments
Palmtop Computers
Electronic Planners
____________________________FeaturesWide Input Voltage Range: 2.7V to 16.5VLow, 490mV Dropout at 350mA Output Current
(MAX1659)30µA Supply Current1µA Max Shutdown CurrentHigh-Power (1.2W) 8-Pin SO PackageDual Mode Operation Output:
Fixed 3.3V (MAX1658)
Fixed 5.0V (MAX1659)
or Adjustable (1.25V to 16V)Thermal Overload ProtectionCurrent-Limit ProtectionReverse Battery Protection
MAX1658/MAX1659
350mA, 16.5V Input,
Low-Dropout Linear Regulators
__________________Pin Configuration
__________Typical Operating Circuit19-1263; Rev 0; 7/97
Dual Mode is a trademark of Maxim Integrated Products.
MAX1658/MAX1659
350mA, 16.5V Input,
Low-Dropout Linear Regulators
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VIN= 5V (MAX1658), VIN= 6V (MAX1659); COUT= 10µF; SHDN= IN; TA= TMINto TMAX; unless otherwise noted. Typical values are
at TA= +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.
IN to GND................................................................-17V to +17V
Continuous Output Current...............................................500mA
Output Short-Circuit Duration............................................Infinite
SET, SHDNto GND.................................................-17V to +17V
OUT to GND................................................-0.3V to (VIN + 0.3V)
Continuous Power Dissipation (Note 1)
SO (derate 14.5mW/°C above +70°C) .............................1.2W
Operating Temperature Range
MAX1658ESA/MAX1659ESA............................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature Range (soldering, 10sec)..................+300°C
Note 1:See Operating Region and Power Dissipationsection.
MAX1658/MAX1659
350mA, 16.5V Input,
Low-Dropout Linear Regulators
ELECTRICAL CHARACTERISTICS (continued)(VIN= 5V (MAX1658), VIN= 6V (MAX1659); COUT= 10µF; SHDN= IN; TA= TMINto TMAX; unless otherwise noted. Typical values are
at TA= +25°C.) (Note 2)
Note 2:Specifications to -40°C are guaranteed by design, not production tested.
Note 3:Adjustable configuration only. VIN= 16.5V.
Note 4:The dropout voltage is defined as (VIN- VOUT) when VOUTis 100mV below the value of VOUTfor VIN= VOUT+ 2V.
__________________________________________Typical Operating Characteristics(VIN= 5V (MAX1658), VIN= 6V (MAX1659); SHDN= IN; SET = GND; CIN= 0.1µF; COUT= 10µF tantalum; TA= +25°C; unless
otherwise noted.)
MAX1658/MAX1659
350mA, 16.5V Input,
Low-Dropout Linear Regulators
____________________________Typical Operating Characteristics (continued)(VIN= 5V (MAX1658), VIN= 6V (MAX1659); SHDN= IN; SET = GND; CIN= 0.1µF; COUT= 10µF tantalum; TA= +25°C; unless
otherwise noted.)
MAX1658/MAX1659
350mA, 16.5V Input,
Low-Dropout Linear Regulators
____________________________Typical Operating Characteristics (continued)(VIN= 5V (MAX1658), VIN= 6V (MAX1659); SHDN= IN; SET = GND; CIN= 0.1µF; COUT= 10µF tantalum; TA= +25°C; unless
otherwise noted.)
______________________________________________________________Pin Description10250k
OUTPUT NOISE DENSITY
vs. FREQUENCYMAX1658 TOC02
FREQUENCY (Hz)
OUTPUT NOISE DENSITY (nV
RMS
Hz)
MAX1658/MAX1659
350mA, 16.5V Input,
Low-Dropout Linear RegulatorsFigure 1. Functional Diagram
_______________Detailed DescriptionThe MAX1658/MAX1659 are micropower, low-dropout
linear regulators featuring Dual Mode™ operation,
which allows them to deliver an adjustable (1.25V to
16.5V) or preset (3.3V for the MAX1658, 5V for
MAX1659) output. They supply up to 350mA while
requiring only 120µA of supply current (typically 30µA
with no load). The devices include thermal shutdown
circuitry, output current limiting, a P-channel pass tran-
sistor, a Dual Mode comparator, and a feedback volt-
age divider. Figure 1 shows the functional diagram.
The 1.21V reference is connected to the amplifier’s
inverting input. The error amplifier compares this refer-
ence with the selected feedback voltage and amplifies
the difference. The error signal applies the drive to the
P-channel pass transistor. If the feedback voltage is
lower than the reference voltage, the transistor’s gate is
pulled lower, increasing output current.
The output voltage is fed back through an internal
resistor network or an external user-selected network.
The Dual Mode comparator examines the voltage at the
SET pin and selects either the internal or external feed-
back path. If SET is below 65mV, internal feedback sets
the MAX1658’s output voltage to 3.3V and the
MAX1659’s to 5V. Otherwise, external feedback is used
for an adjustable output between 1.25V and 16.5V.
Additional features include internal current limiting,
reverse battery protection, thermal-overload protection,
and a 1µA shutdown mode.
