TLV1117LV12 Datasheet, PDF (1/20 Pages) Texas Instruments – 1-A, Positive Fixed Voltage, Low-Dropout Regulator

TLV1117LV Series
www.ti.com
SBVS160A – MAY 2011 – REVISED SEPTEMBER 2011
1-A, Positive Fixed Voltage, Low-Dropout Regulator
FEATURES
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•2 1.5% Typical Accuracy
• Low I_Q: 100 μA (max)
– 500 times lower than standard 1117 devices
• V_IN: 2.0 V to 5.5 V
– Absolute maximum V_IN = 6.0 V
• Stable with 0-mA Output Current
• Low Dropout: 455 mV at 1 A for V_OUT = 3.3 V
• High PSRR: 65 dB at 1 kHz
• Minimum Ensured Current Limit: 1.1 A
• Stable with Cost-Effective Ceramic Capacitors:
– With 0-Ω ESR
• Temperature Range: –40°C to +125°C
• Thermal Shutdown and Ovecurrent Protection
• Available in SOT223 Package
– See Package Option Addendum at end of
this document for complete list of available
voltage options
APPLICATIONS
• Set Top Boxes
• TVs and Monitors
• PC Peripherals, Notebooks, Motherboards
• Modems and Other Communication Products
• Switching Power Supply Post-Regulation
DESCRIPTION
The TLV1117LV series of low-dropout (LDO) linear
regulators is a low input voltage version of the
popular 1117 voltage regulator.
The TLV1117LV is an extremely low-power device
that consumes 500 times lower quiescent current
than traditional 1117 voltage regulators, making it
suitable for applications that mandate very low
standby current. The TLV1117LV family of LDOs is
also stable with 0 mA of load current; there is no
minimum load requirement, making it an ideal choice
for applications where the regulator is required to
power very small loads during standby in addition to
large currents on the order of 1 A during normal
operation. The TLV1117LV offers excellent line and
load transient performance, resulting in very small
magnitude undershoots and overshoots of output
voltage when the load current requirement changes
from less than 1 mA to more than 500 mA.
A precision bandgap and error amplifier provides
1.5% accuracy. A very high power-supply rejection
ratio enables usage of the device for post-regulation
after a switching regulator. Other valuable features
include low output noise and low-dropout voltage.
The device is internally compensated to be stable
with 0-Ω equivalent series resistance (ESR)
capacitors. These key advantages enable the use of
cost-effective, small-size ceramic capacitors.
Cost-effective capacitors that have higher bias
voltages and temperature derating can also be used
if desired.
The TLV1117LV series is available in a SOT223
package.
TLV1117LVxxDCY
3
INPUT
2
OUTPUT
1
GND
Figure 1.
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
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UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated