MAX1793EUE33+ Maxim Integrated Products, MAX1793EUE33+ Datasheet - Page 6

• Manufacturer Part Number: MAX1793EUE33+
• Description: IC REG LDO 3.3/ADJ 1A 16TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1793EUE33+

• Regulator Topology: Positive Fixed or Adjustable
• Voltage - Output: 3.3V, 1.25 ~ 5 V
• Voltage - Input: 2.5 ~ 5.5 V
• Voltage - Dropout (typical): 0.21V @ 1A
• Number Of Regulators: 1
• Current - Output: 1A (Min)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Number Of Outputs: 4
• Polarity: Positive
• Input Voltage Max: 5.5 V
• Output Voltage: 1.25 V to 5 V, 3.3 V
• Output Type: Adjustable, Fixed
• Dropout Voltage (max): 350 mV
• Output Current: 1 A
• Line Regulation: 0.15 %/V
• Load Regulation: 0.7 %
• Voltage Regulation Accuracy: 3 %
• Maximum Power Dissipation: 1.5 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Reference Voltage: 1.25 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Low-Dropout, Low I
6
(Circuit of Figure 2, V
1, 8, 9, 16
_______________________________________________________________________________________
12–15
PIN
2–5
10
11
6
7
NAME
SHDN
GND
N.C.
OUT
RST
SET
IN
IN
V
= +5V, V
V
SHDN
OUT
No Connection. Not internally connected.
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.
Reset Output. Open-drain output is low when V
while the output voltage (V
the reset threshold. Connect a 100kΩ pullup resister to OUT to obtain an output voltage.
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.
Ground. 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.
Voltage-Setting Input. Connect to GND to select the factory-present output voltage. Connect SET to an
external resistor-divider for adjustable-output operation.
Regulator Output. Bypass with a 6.8µF, low-ESR capacitor to GND. Connect all OUT pins together at
the IC.
I
OUT
SHDN
= 100mA
SHUTDOWN RESPONSE
= V
IN
40µs/div
, V
OUT
Typical Operating Characteristics (continued)
= +3.3V, T
Q
OUT
MAX1793 toc14
, 1A Linear Regulator
) is below the reset threshold and for at least 4ms after V
A
= +25°C, unless otherwise noted.)
2V/div
5V/div
FUNCTION
OUT
V
RST
OUT
is 6% below its nominal value. RST remains low
V
IN
RESET OUTPUT RESPONSE
1ms/div
Pin Description
MAX1793 toc15
OUT
5V/div
2V/div
2V/div
rises above