MAX1793 Maxim, MAX1793 Datasheet
MAX1793
Manufacturer Part Number
MAX1793
Description
Low-Dropout / Low IQ / 1A Linear Regulator
Manufacturer
Maxim
Datasheet
1.MAX1793.pdf
(10 pages)
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19-1654; Rev 1; 11/00
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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 Ordering Information) or can be
adjusted from 1.25V to 5.0V with an external resistor-
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
IN
C
ON
IN
Notebook Computers
Cordless Telephones
Cellular Phones
Modems
Hand-Held Instruments
PDAs and Palmtop Computers
OFF
Low-Dropout, Low I
Typical Operating Circuit
IN
NC
IN
IN
IN
SHDN
________________________________________________________________ Maxim Integrated Products
MAX1793
General Description
GND
OUT
OUT
OUT
OUT
RST
SET
OUTPUT
C
RESET
OUT
OUT
*EP = Exposed Pad
† Contact factory for other preset output voltages.
o Guaranteed 1A Output Current
o Low 210mV Dropout at 1A
o Up to ±1% Output Voltage Accuracy
o Reset Output (4ms delay)
o Low 125µA Ground Current
o 0.1µA Shutdown
o Low 115µV
o Thermal Overload Protection
o Output Current Limit
o Tiny TSSOP Power Package (1.5W)
Q
MAX1793EUE-50 -40°C to +85°C
MAX1793EUE-33 -40°C to +85°C 16 TSSOP-EP*
MAX1793EUE-25 -40°C to +85°C 16 TSSOP-EP
MAX1793EUE-20 -40°C to +85°C 16 TSSOP-EP
MAX1793EUE-18 -40°C to +85°C 16 TSSOP-EP
MAX1793EUE-15 -40°C to +85°C 16 TSSOP-EP
TOP VIEW
, 1A Linear Regulator
Preset at 1.5V, 1.8V, 2.0V, 2.5V, 3.3V or 5.0V
Adjustable from 1.25V to 5.0V
30% Smaller than SOT223 (only 1.1mm high)
PART
SHDN
N.C.
N.C.
RST
RMS
IN
IN
IN
IN
1
2
6
3
4
5
7
8
Output Noise
RANGE
TEMP.
Ordering Information
TSSOP-EP
MAX1793
Pin Configuration
16 TSSOP-EP*
PACKAGE
16
15
14
13
12
11
10
9
PIN-
N.C.
OUT
OUT
OUT
OUT
SET
GND
N.C.
Features
5.0 or Adj
3.3 or Adj
2.5 or Adj
2.0 or Adj
1.8 or Adj
1.5 or Adj
V
OUT
(V)
1
†
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