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 ..
MAX1659ESA ,350mA / 16.5V Input / Low-Dropout Linear RegulatorsFeaturesThe MAX1658/MAX1659 linear regulators maximize bat-' Wide Input Voltage Range: 2.7V to 16. ..
MAX1659ESA+ ,350mA, 16.5V Input, Low-Dropout Linear Regulatorsapplications.Ordering Information
MAX1659ESA+T ,350mA, 16.5V Input, Low-Dropout Linear RegulatorsApplicationsPART TEMP RANGE PIN-PACKAGE● Digital Cordless PhonesMAX1658C/D 0°C to +70°C Dice*● PCS ..
MAX165ACWN ,CMOS レP-Compatible, 5レs, 8-Bit ADCsGeneral Description
The MAX165/MAX166 are high-speed (Sue)
microprocessor (PP)- compatible, 8-b ..
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 ..
MAX4420CPA ,High-Speed, 6A Single MOSFET DriversGeneral Description
The MAX4420, MAX4429 and MXT429 are single-output
MOSFET drivers designed t ..
MAX4420CSA ,High-Speed, 6A Single MOSFET DriversFeatures
. TTL/CMOS Compatible (IN f 10pA)
. 4.5V to 18V Supply Range (MAX4420/MAX4429)
O 1.59 ..
MAX1658ESA+-MAX1658ESA+T-MAX1659ESA+-MAX1659ESA+T
350mA, 16.5V Input, Low-Dropout Linear Regulators
General DescriptionThe MAX1658/MAX1659 linear regulators maximize
battery 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 transis-
tor, these devices maintain a low quiescent current 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.
Applications●Digital Cordless Phones●PCS Phones●Cellular Phones●PCMCIA Cards●Modems●Hand-Held Instruments●Palmtop Computers●Electronic Planners
Features●Wide Input Voltage Range: 2.7V to 16.5V●Low, 490mV Dropout at 350mA Output Current
(MAX1659)●30μA Supply Current●1μA Max Shutdown Current●High-Power (1.2W) 8-Pin SO Package●Dual Mode Operation Output: Fixed 3.3V (MAX1658) Fixed 5.0V (MAX1659) or Adjustable (1.25V to 16V)●Thermal-Overload Protection●Current-Limit Protection●Reverse-Battery Protection
Dual Mode is a trademark of Maxim Integrated Products.
*Dice are tested at TA = +25°C, DC parameters only.
+Denotes a lead(Pb)-free/RoHS-compliant package.
PARTTEMP RANGEPIN-PACKAGE
MAX1658C/D0°C to +70°CDice*
MAX1658ESA+-40°C to +85°C8 SO
MAX1659C/D0°C to +70°CDice*
MAX1659ESA+-40°C to +85°C8 SO
SHDNOFF
INPUT
UP TO 16.5V
OUTPUT
3.3V OR 5V,
OR ADJ. (DOWN TO 1.25V);
UP TO 350mA
GNDSET
OUT
MAX1658
MAX1659OUTOUT
GNDSHDN
SET
TOP VIEW
MAX1658
MAX1659
MAX1658/MAX1659350mA, 16.5V Input,
Low-Dropout Linear Regulators
Typical Operating CircuitPin Coniguration
Ordering Information
IN to GND ...............................................................-17V to +17V
Continuous Output Current ..............................................500mA
Output Short-Circuit Duration ...........................................Infinite
SET, SHDN to 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
(VIN = 5V (MAX1658), VIN = 6V (MAX1659); COUT = 10μF; SHDN = IN; TA = TMIN to TMAX; unless otherwise noted. Typical values
are at TA = +25°C.) (Note 2)
Note 1: See Operating Region and Power Dissipation section.
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSInput Voltage RangeVINSET = OUT2.716.5V
Output VoltageVOUTSET = GND,
0mA < ILOAD < 350mA
MAX1658,5V ≤ VIN ≤ 16.5V3.203.303.40MAX1659,6V ≤ VIN ≤ 16.5V4.855.005.15
Regulated Output Voltage Range(Note 3)1.2516V
Maximum Output CurrentIOUT(MAX)350mA
Current LimitILIM900mA
Supply CurrentIQ3060μA
Dropout Voltage (Note 4)ΔVDO
IOUT = 1mA2
IOUT = 350mA
MAX16586501500
MAX1659490875
Line RegulationΔVLNRMAX1658, VIN = 5V to 16.5V0.03%/V
MAX1659, VIN = 6V to 16.5V0.05
Load RegulationΔVLDRIOUT = 0mA to 350mA0.003%/mA
Startup OvershootVOSH0%VOUT
Output Noiseen10Hz to 100kHz2.5mVP-P
SHUTDOWNLogic-Low InputVINLSHDN2.7V ≤ VIN ≤ 16.5V0.4V
Logic-High Input ThresholdVINHSHDN2.7V ≤ VIN ≤ 16.5V2.0V
Shutdown Input Bias CurrentISHDNSHDN = GND or SHDN = IN0.1μA
Shutdown Supply CurrentIQSHDNSHDN ≤ 0.4V0.11μA
Shutdown Exit TimetSTARTVOUT = 5.0V120μs
MAX1658/MAX1659350mA, 16.5V Input,
Low-Dropout Linear Regulators
Absolute Maximum RatingsStresses 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.
Electrical Characteristics
(VIN = 5V (MAX1658), VIN = 6V (MAX1659); COUT = 10μF; SHDN = IN; TA = TMIN to 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 VOUT is 100mV below the value of VOUT for VIN = VOUT + 2V.
(VIN = 5V (MAX1658), VIN = 6V (MAX1659); SHDN = IN; SET = GND; CIN = 0.1μF; COUT = 10μF tantalum; TA = +25°C; unless
otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
SET INPUTSET Reference VoltageVSETIOUT = 10μA (Note 3)1.1741.2101.246V
SET Input Leakage CurrentISETTA = +25°C (Note 3)0.010.025μATA = +85°C (Note 3)0.1
THERMAL PROTECTIONThermal Shutdown TemperatureTSD165°C
Thermal Shutdown HysteresisΔTSD10°C
-72100010k100100k
MAX1659
POWER-SUPPLY
REJECTION RATIO vs. FREQUENCYMAX1658 toc03
FREQUENCY (Hz)
PSSR (dB)-48
VIN = 6.15V TO 6.4V
VOUT = 5V
-90100010k100100k
MAX1658
POWER-SUPPLY
REJECTION RATIO vs. FREQUENCYMAX1658 toc01
FREQUENCY (Hz)
PSRR (dB)-60
VIN = 5.2V TO 5.4V
VOUT = 3.3V
MAX1658/MAX1659350mA, 16.5V Input,
Low-Dropout Linear Regulators
Electrical Characteristics (continued)
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.)369151218
MAX1658
SUPPLY CURRENT vs. INPUT VOLTAGEMAX1658/59 toc06
INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
IL = 100mA
IL = 0mA
VOUT = 3.3V
QUIESCENT CURRENT
vs. LOAD CURRENT
MAX1658/59 toc09
LOAD CURRENT (mA)
QUIESCENT CURRENT (µA)
DROPOUT VOLTAGE
vs. OUTPUT VOLTAGE
MAX1658/59 toc07
OUTPUT VOLTAGE (V)
DROPOUT VOLTAGE (mV)
IL = 350mA
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX1658/59 toc08
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
VOUT = 5.0V
VOUT = 3.3V
100µs/div
MAX1658
LINE-TRANSIENT RESPONSEMAX1658/59 toc11
A: INPUT VOLTAGE (1V/div), VIN = 6V (HIGH), VIN = 5V (LOW)
B: OUTPUT VOLTAGE (100mV/div)
VOUT = 3.3V
MAX1659
LINE-TRANSIENT RESPONSEMAX1658/59 toc10
VOUT = 5.0V
NORMALIZED OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX1658/59 toc05
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE V
NOMINAL
OUT
(V)
3.3V OUTPUT
5V OUTPUT
VOUT = 3.3V
MAX1658
LOAD-TRANSIENT RESPONSEMAX1658/59 toc13
VOUT = 5V
MAX1659
LOAD-TRANSIENT RESPONSEMAX1658/59 toc12
MAX1658/MAX1659350mA, 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.)
PINNAMEFUNCTIONSETOutput-Voltage Input. Connecting SET to ground selects the factory-preset 3.3V (MAX1658) or 5V (MAX1659)
output voltage. For an adjustable output voltage, connect SET to a resistive voltage-divider from OUT to GND.SHDNShutdown Input. When SHDN is low, the device turns off and typically draws 0.1μA of supply current.
3, 6, 7INUnregulated Input Supply Voltage, 2.7V to 16.5V input range. The IN pins also serve as heatsinks. Connect to
a copper plane to achieve maximum thermal dissipation.
4, 5OUT
Regulated Output Voltage. Fixed or adjustable from 1.25V to 16V. Sources up to 350mA. For stable operation, bypass with a 10μF, low-ESR (<0.2Ω) capacitor from OUT to GND. For improved load-transient response, use
a larger low-ESR capacitor.0V
3.3V
100µs/div
MAX1658 OVERSHOOT AND
TIME EXITING SHUTDOWNMAX1658/59 toc14
A: OUTPUT VOLTAGE (1V/div)
B: SHDN PIN VOLTAGE (2V/div)0V
100µs/div
MAX1659 OVERSHOOT AND
TIME EXITING SHUTDOWNMAX1658/59TOC15
A: OUTPUT VOLTAGE (2V/div)
B: SHDN PIN VOLTAGE (2V/div)
10ms/div
10Hz TO 100kHz NOISE, VOUT = 5V (1mV/div), IOUT = 165mA
OUTPUT NOISE103250k
OUTPUT NOISE DENSITY
vs. FREQUENCYMAX1658 toc02
FREQUENCY (Hz)
OUTPUT NOISE DENSITY (nV
RMS
Hz)
VOUT = 5V
IOUT = 165mA
MAX1658/MAX1659350mA, 16.5V Input,
Low-Dropout Linear Regulators
Typical Operating Characteristics (continued)
Pin Description
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 transistor, a Dual Mode compar-
ator, and a feedback voltage-divider. Figure 1 shows the
functional diagram.
The 1.21V reference is connected to the amplifier’s
inverting input. The error amplifier compares this
reference with the selected feedback voltage and ampli-
fies 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 feedback
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.
Figure 1. Functional Diagram
OUT
SET
SHDN
MOSFET
DRIVER
WITH
CURRENT
LIMIT
65mV
GND
DUAL-MODE
COMPARATOR
1.21V
REFERENCE
THERMAL
SENSOR
ERROR
AMPLIFIER
MAX1658
MAX1659MAX1658/MAX1659350mA, 16.5V Input,
Low-Dropout Linear Regulators
