IC Phoenix
 
Home ›  MM31 > MAX1793EUE18+-MAX1793EUE18+T-MAX1793EUE18-T-MAX1793EUE25-MAX1793EUE25+-MAX1793EUE25+T-MAX1793EUE25-T-MAX1793EUE33-MAX1793EUE33+-MAX1793EUE33+T-MAX1793EUE33-T,Low-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE18+-MAX1793EUE18+T-MAX1793EUE18-T-MAX1793EUE25-MAX1793EUE25+ Fast Delivery,Good Price
Part Number:
If you need More Quantity or Better Price,Welcom Any inquiry.
We available via phone +865332716050 Email
Partno Mfg Dc Qty AvailableDescript
MAX1793EUE33+T |MAX1793EUE33TMAXN/a2500avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE33MAXIN/a61avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE33+MAXIMN/a50avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE18+ |MAX1793EUE18MAXIMN/a1avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE18+TMAXIMN/a4978avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE18-T |MAX1793EUE18TMAXIMN/a1125avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE25MAXIMN/a113avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE25+MAXIMN/a50avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE25+TMAXIMN/a1000avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE25-T |MAX1793EUE25TMAXIMN/a1167avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE33MAXIMN/a900avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE33MAXIM ?N/a20avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE33MAXN/a78avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE33+T |MAX1793EUE33TMAXIMN/a2500avaiLow-Dropout, Low-IQ, 1A Linear Regulator
MAX1793EUE33-T |MAX1793EUE33TMAXIMN/a36avaiLow-Dropout, Low-IQ, 1A Linear Regulator


MAX1793EUE18+T ,Low-Dropout, Low-IQ, 1A Linear RegulatorFeaturesThe MAX1793 low-dropout linear regulator (LDO) oper-♦ Guaranteed 1A Output Currentates from ..
MAX1793EUE18-T ,Low-Dropout, Low-IQ, 1A Linear RegulatorELECTRICAL CHARACTERISTICS (continued)(V = V + 0.5V or V = 2.5V (whichever is greater), SHDN = IN, ..
MAX1793EUE25 ,Low-Dropout, Low-IQ, 1A Linear Regulatorfeatures include a♦ 0.1µA Shutdown built-in reset output, low-power shutdown, and short-cir-♦ Low 1 ..
MAX1793EUE25+ ,Low-Dropout, Low-IQ, 1A Linear RegulatorMAX179319-1654; Rev 3; 1/12Low-Dropout, Low I , 1A Linear RegulatorQ
MAX1793EUE25+T ,Low-Dropout, Low-IQ, 1A Linear RegulatorELECTRICAL CHARACTERISTICS (continued)(V = V + 0.5V or V = 2.5V (whichever is greater), SHDN = IN, ..
MAX1793EUE25-T ,Low-Dropout, Low-IQ, 1A Linear Regulatorfeatures include a♦ 0.1µA Shutdown built-in reset output, low-power shutdown, and short-cir-♦ Low 1 ..
MAX4634EUB ,Fast, Low-Voltage, 4з, 4-Channel CMOS Analog MultiplexerELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T ..
MAX4634EUB+ ,Fast, Low-Voltage, 4 Ohm, 4-Channel CMOS Analog Multiplexerfeatures fast turn-on (t ) and turn-offON ♦ 1Ω (max) Guaranteed R Flatness Over SignalON(t ) times ..
MAX4634EUB+ ,Fast, Low-Voltage, 4 Ohm, 4-Channel CMOS Analog MultiplexerELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = -40°C to ..
MAX4634EUB+T ,Fast, Low-Voltage, 4 Ohm, 4-Channel CMOS Analog MultiplexerELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T ..
MAX4634EUB+T ,Fast, Low-Voltage, 4 Ohm, 4-Channel CMOS Analog MultiplexerFeaturesThe MAX4634 fast, low-voltage, 4-channel CMOS ana- ♦ Guaranteed RONlog multiplexer
MAX4634EUB-T ,Fast, Low-Voltage, 4 Ohm, 4-Channel CMOS Analog MultiplexerApplications♦ -78dB Crosstalk (at 1MHz)Battery-Operated Equipment♦ -80dB Off-Isolation (at 1MHz)Aud ..


MAX1793EUE18+-MAX1793EUE18+T-MAX1793EUE18-T-MAX1793EUE25-MAX1793EUE25+-MAX1793EUE25+T-MAX1793EUE25-T-MAX1793EUE33-MAX1793EUE33+-MAX1793EUE33+T-MAX1793EUE33-T
Low-Dropout, Low-IQ, 1A Linear Regulator
General Description
The MAX1793 low-dropout linear regulator (LDO) oper-
ates from +2.5V to +5.5V and delivers a guaranteed 1A
load current with a low 210mV dropout. The high-accu-
racy (±1%) output voltage is preset at an internally
trimmed voltage (see the Ordering Information) or can
be adjusted from 1.25V to 5.0V with an external resis-
tor-divider.
An internal pMOS pass transistor allows a low 125µA
supply current, making the MAX1793 ideal for battery-
operated portable equipment. Other features include a
built-in reset output, low-power shutdown, and short-cir-
cuit and thermal-overload protection. The MAX1793 is
available in a 1.5W, 16-pin power TSSOP package,
which is 30% smaller than a SOT223 package and only
1.1mm high.
________________________Applications

Notebook Computers
Cordless Telephones
Cellular Phones
Modems
Handheld Instruments
PDAs and Palmtop Computers
Features
Guaranteed 1A Output CurrentLow 210mV Dropout at 1AUp to ±1% Output Voltage Accuracy
Preset at 1.5V, 1.8V, 2.0V, 2.5V, 3.3V or 5.0V
Adjustable from 1.25V to 5.0V
Reset Output (4ms Delay)Low 125µA Ground Current0.1µA Shutdown Low 115µVRMSOutput NoiseThermal-Overload ProtectionOutput Current Limit Tiny TSSOP Power Package (1.5W)
30% Smaller than SOT223 (only 1.1mm high)
Low-Dropout, Low IQ, 1A Linear Regulator

N.C.N.C.
OUT
OUT
OUT
OUT
SET
GND
N.C.
TOP VIEW
MAX1793
RST
SHDN
N.C.EP
Pin Configuration

MAX1793IN
OFF
CIN
SHDN
OUT
OUT
OUT
OUT
RST
SET
GND
COUT
OUT
RESET
OUTPUT
Typical Operating Circuit

19-1654; Rev 3; 1/12
Ordering Information
Ordering Information continued at end of data sheet

*EP = Exposed pad.
†Contact factory for other preset output voltages.
/V Denotes an automotive qualified part.
Note:
Devices are also available in a lead(Pb)-free/RoHS-
compliant package. Specify lead-free by adding “+” to the part
number when ordering.
PARTTEMP
RANGE
PIN-
PACKAGE
VOUT†V)

MAX1793EUE-50- 40°C to + 85°C 16 TSSOP-EP*5.0 or Adj
MAX1793EUE-33- 40°C to + 85°C 16 TSSOP-EP*3.3 or Adj
MAX1793EUE-33/V- 40°C to + 85°C 16 TSSOP-EP*3.3 or Adj
MAX1793
Low-Dropout, Low IQ, 1A Linear Regulator
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS

(VIN= VOUT(NOM)+ 0.5V or VIN= 2.5V (whichever is greater), SHDN= IN, 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.
IN, SHDN, RSTto GND............................................-0.3V to +6V
OUT, SET to GND........................................-0.3V to (VIN+ 0.3V)
Output Short-Circuit Duration............................................Infinite
Continuous Power Dissipation (TA= +70°C)
TSSOP-EP (derate 19mW/°C above +70°C).....................1.5W
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Soldering Temperature (reflow).......................................+260°C
Soldering Temperature (reflow)
Lead(Pb)-Free Packages..............................................+260°C
Packages Containing Lead(Pb)....................................+240°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Input VoltageVIN2.55.5V
Input Undervoltage LockoutVIN2.02.3V
Preset VOUT ≥ 2.5V-1+1TA = +85°C,
IOUT = 250mAPreset VOUT < 2.5V-1.5+1.5
TA = 0°C to +85°C, IOUT = 250mA-2+2Output Voltage Accuracy
(Preset Mode, SET = GND)
TA = 0°C to +85°C, IOUT = 1mA to 1A,
VIN > VOUT + 0.5V-3+3
TA = +85°C, IOUT = 250mA, VIN = 3V1.2291.2501.271
TA = 0°C to +85°C, IOUT = 250mA, VIN = 3V1.2191.281SET Voltage Threshold
(For Adjustable Output)
TA = 0°C to + 85°C , IOU T = 1m A to 1A, V IN = 3V 1.2121.288
Adjustable Output Voltage
Range1.255V
Maximum Output CurrentIOUTContinuous, VIN ≥ 3V1ARM S
Short-Circuit Current LimitILIMVOUT = 0V, VIN ≥ 3V1.11.83.3A
In-Regulation Current LimitVOUT within 4% of nominal output voltage,
VIN = 5.5V2.8A
SET Pin Dual Mode Threshold50150mV
SET Input Bias CurrentISETVSET = +1.25V±100nA
Ground CurrentIGNDIOUT = 100µA125200µA
MAX1793-33, -50210350Dropout Voltage (Note 1)VIN - VOUTIOUT = 1A,
SET = GNDMAX1793-25270450mV
Line Regulation∆VLNRVIN from (VOUT + 0.1V) to +5.5V,
IOUT = 5mA, SET = GND-0.150+0.15%/V
Load Regulation∆VLDRIOUT = 100µA to 1A0.7%
Output Voltage Noise10Hz to 1MHz, COUT = 6.8µF (ESR < 0.1Ω)115µVRMS
Shutdown Supply CurrentIOFFSHDN = GND, VIN = +5.5V0.116µA
Output Pulldown Resistance in
ShutdownSHDN = GND5kΩ
Low-Dropout, Low IQ, 1A Linear Regulator
ELECTRICAL CHARACTERISTICS (continued)

(VIN= VOUT(NOM)+ 0.5V or VIN= 2.5V (whichever is greater), SHDN= IN, TA= +0°C to +85°C, unless otherwise noted. Typical values
are at TA= +25°C.)
ELECTRICAL CHARACTERISTICS

(VIN= VOUT(NOM)+ 0.5V or VIN= 2.5V (whichever is greater), SHDN= IN, TA= -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

VIH1.6SHDN Input ThresholdVIL+2.5V < VIN < +5.5V0.6
SHDN Input Bias CurrentI SHDNSHDN = GND or IN0.011µA
RST Output Low VoltageVOLISINK = 1mA0.1
Operating Voltage Range for
RST ValidISINK = 100µA1.05.5
RST Output High LeakageV RST = +5.5V0.011µA
RST Trip Level Referred to
Nominal VOUTRising edge909496% VOUT
RST Release DelayRising edge1.54.08.0ms
Thermal Shutdown TemperatureT SHDNTypical thermal hysteresis = 20°C170°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Input VoltageVIN2.55.5V
Input Undervoltage LockoutVIN2.02.3V
IOUT = 250mA-2.52.5Output Voltage Accuracy
(preset mode, SET = GND)IOUT = 1mA to 1A, VIN > VOUT + 0.5V-3.23.2%
IOUT = 250mA, VIN = 3V1.2161.284SET Voltage Threshold
(for adjustable output)IOUT = 1mA to 1A, VIN = 3V1.2101.290V
Adjustable Output Voltage
Range1.255V
Maximum Output CurrentIOUTContinuous, VIN ≥ 3V1ARMS
Short-Circuit Current LimitILIMVOUT = 0V, VIN ≥ 3V1.13.3A
SET Pin Dual Mode Threshold50150mV
SET Input Bias CurrentISETVSET = +1.25V±100nA
Ground CurrentIGNDIOUT = 100µA200µA
MAX1793-33, -50350Dropout Voltage (Note 1)VIN -
VOUT
IOUT = 1A,
SET = GNDMAX1793-25450mV
Line Regulation∆VLNRVIN from (VOUT + 0.1V) to +5.5V,
IOUT = 5mA, SET = GND-0.150.15%/V
Shutdown Supply CurrentIOFFSHDN = GND, VIN = +5.5V16µA
VIH1.6SHDN Input ThresholdVIL+2.5V < VIN < +5.5V
0.6V
SHDN Input Bias CurrentI S H D N SHDN = GND or IN1µA
101001000OUTPUT VOLTAGE vs. LOAD CURRENT
MAX1793 toc01
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
MAX1793 toc02
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
IOUT = 0
IOUT = 1A
OUTPUT VOLTAGE vs. TEMPERATURE
MAX1793 toc03
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
IOUT = 250mA
GROUND CURRENT vs. INPUT VOLTAGE
MAX1793 toc04
GROUND CURRENT (
IOUT = 0
IOUT = 1A101001000
GROUND CURRENT vs. LOAD CURRENT

MAX1793 toc05
GROUND CURRENT (
GROUND CURRENT vs. TEMPERATURE
MAX1793 toc06
GROUND CURRENT (
IOUT = 250mA
IOUT = 0
Typical Operating Characteristics

(Circuit of Figure 2, VIN = +5V, VSHDN= VIN,VOUT = +3.3V, TA = +25°C, unless otherwise noted.)
MAX1793
Low-Dropout, Low IQ, 1A Linear Regulator
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Operating Voltage Range for
RST ValidISINK = 10µA1.05.5V
RST Output High LeakageV RST = +5.5V1µA
RST Trip Level Referred to
Nominal VOUTRising edge9096% VOUT
RST Release DelayRising edge1.58.0ms
ELECTRICAL CHARACTERISTICS (continued)

(VIN= VOUT(NOM)+ 0.5V or VIN= 2.5V (whichever is greater), SHDN= IN, TA= -40°C to +85°C, unless otherwise noted.) (Note 2)
Note 1:
Dropout voltage is defined as VIN- VOUT, when VOUTis 100mV below the value of VOUTmeasured when VIN= VOUT(NOM)+
0.5V. Since the minimum input voltage is 2.5V, this specification in only meaningful when VOUT(NOM)≥2.5V. For VOUT(NOM)
between 2.5V and 3.3V, use the following equations: Typical Dropout = 210mV + (3.3V - VOUT(NOM)x 75mV/V; Guaranteed
Maximum Dropout = 350mV + (3.3V - VOUT(NOM)x 125mV/V. For VOUT(NOM)> 3.3V: Typical Dropout = 210mV;
Guaranteed Maximum Dropout = 350mV.
Note 2:
Specifications to TA= -40°C are guaranteed by design and not production tested.
Low-Dropout, Low IQ, 1A Linear Regulator
DROPOUT VOLTAGE vs. LOAD CURRENT
MAX1793 toc07
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX1793 toc08
FREQUENCY (kHz)
PSRR (dB)
IOUT = 250mA
OUTPUT NOISE SPECTRAL DENSITY
vs. FREQUENCY
FREQUENCY (kHz)
NOISE (
Hz)1
IOUT = 250mA
Typical Operating Characteristics (continued)

(Circuit of Figure 2, VIN = +5V, VSHDN= VIN,VOUT = +3.3V, TA = +25°C, unless otherwise noted.)
OUTPUT NOISE vs. LOAD CURRENT
MAX1793 toc10
LOAD CURRENT (A)
OUTPUT NOISE (
RMS
LINE-TRANSIENT RESPONSE
MAX1793 toc11
100μs/div
VIN
3.4V
10mV/div
AC-COUPLED
VOUT
IOUT = 100mA
LOAD-TRANSIENT RESPONSE

MAX1793 toc12
40μs/div
IOUT
100mA
20mV/div
AC-COUPLED
VOUT
OUTPUT NOISE

MAX1793 toc13
4ms/div
100μV/div
MAX1793
Low-Dropout, Low IQ, 1A Linear Regulator
SHUTDOWN RESPONSE

MAX1793 toc14
40μs/div
VOUT
2V/div
5V/div
VSHDN
IOUT = 100mA
RESET OUTPUT RESPONSE

MAX1793 toc15
1ms/div
VIN5V/div
2V/div
2V/div
VOUT
RST
Typical Operating Characteristics (continued)

(Circuit of Figure 2, VIN = +5V, VSHDN= VIN,VOUT = +3.3V, TA = +25°C, unless otherwise noted.)
Pin Description
PINNAMEFUNCTION

1, 8, 9, 16N.C.No Connection. Not internally connected.
2–5IN
Regulator Input. Supply voltage ranges from +2.5V to +5.5V. Bypass with a 4.7µF capacitor to GND
(see the Capacitor Selection and Regulator Stability). These inputs are internally connected, but they
also must be externally connected for proper operation.RST
Reset Output. Open-drain output is low when VOUT is 6% below its nominal value. RST remains low
while the output voltage (VOUT) is below the reset threshold and for at least 4ms after VOUT rises above
the reset threshold. Connect a 100kΩ pullup resister to OUT to obtain an output voltage.SHDN
Active-Low Shutdown Input. A logic-low disables the output and reduces the supply current to 0.1µA.
In shutdown, the RST output is low and OUT is pulled low through an internal 5kΩ resistance. Connect
SHDN to IN for normal operation.GNDGround. This pin and the exposed pad also function as a heatsink. Solder both to a large pad or to the
circuit-board ground plane to maximize power dissipation.SETVoltage-Setting Input. Connect to GND to select the factory-present output voltage. Connect SET to an
external resistor-divider for adjustable-output operation.
12–15OUTRegulator Output. Bypass with a 6.8µF, low-ESR capacitor to GND. Connect all OUT pins together at
the IC.
—EPExposed Pad. Connect to the ground plane. EP also functions as a heatsink. Solder to the circuit-board
ground plane to maximize thermal dissipation.
ic,good price


TEL:86-533-2716050      FAX:86-533-2716790
   

©2020 IC PHOENIX CO.,LIMITED