TPS752XXQ_16 Datasheet, PDF (1/31 Pages) Texas Instruments – TPS752xxQ with RESET Output, TPS754xxQ with Power Good Output FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS

TPS752xxQ
TPS754xxQ
www.ti.com
SLVS242C – MARCH 2000 – REVISED OCTOBER 2007
TPS752xxQ with RESET Output, TPS754xxQ with Power Good Output
FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
FEATURES
1
•23 2-A Low-Dropout Voltage Regulator
• Available in 1.5 V, 1.8 V, 2.5 V, 3.3 V Fixed
Output and Adjustable Versions
• Open Drain Power-On Reset With 100ms Delay
(TPS752xxQ)
• Open Drain Power-Good (PG) Status Output
(TPS754xxQ)
• Dropout Voltage Typically 210 mV at 2 A
(TPS75233Q)
• Ultralow 75-μA Typical Quiescent Current
• Fast Transient Response
• 2% Tolerance Over Specified Conditions for
Fixed-Output Versions
• 20-Pin TSSOP PowerPAD™ (PWP) Package
• Thermal Shutdown Protection
APPLICATIONS
• Telecom
• Servers
• DSP, FPGA Supplies
DESCRIPTION
The TPS752xxQ and TPS754xxQ devices are
low-dropout regulators with integrated power-on reset
and power-good (PG) functions respectively. These
devices are capable of supplying 2 A of output
current with a dropout of 210 mV (TPS75233Q,
TPS75433Q). Quiescent current is 75 μA at full load
and drops down to 1 μA when the device is disabled.
These devices are designed to have fast transient
response for larger load current changes.
Because the PMOS device behaves as a low-value
resistor, the dropout voltage is very low (typically
210 mV at an output current of 2 A for the
TPS75x33Q) and is directly proportional to the output
current. Additionally, because the PMOS pass
element is a voltage-driven device, the quiescent
current is very low and independent of output loading
(typically 75 μA over the full range of output current,
1 mA to 2 A). These two key specifications yield a
significant improvement in operating life for
battery-powered systems.
The device is enabled when EN is connected to a
low-level input voltage. This LDO family also features
a sleep mode; applying a TTL high signal to EN
(enable) shuts down the regulator, reducing the
quiescent current to less than 1 μA at T_J = +25°C.
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Typical Application Circuit
(Fixed Voltage Options)
V_IN
0.22 mF
3
IN
4
IN
5
EN
PG or 6
RESET
7
SENSE
8
OUT
9
OUT
GND
17
PG or RESET Output
V_OUT
(1)
C_OUT
+
47 mF
(1) See Application Information for capacitor selection details.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2000–2007, Texas Instruments Incorporated