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Details, datasheet, quote on part number:TPS75818KC
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| Part: | TPS75818KC |
| Category: | Power Management => Regulators => Linear Regulators => LDO (Low Drop Out) |
| Description: | ti TPS75818, 3-A, Fast-transient Response, 1.8-V LDO Voltage Regulator |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download TPS75818KC datasheet File size : 343 kB |
| Request For quote: | Find where to buy TPS75818KC
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Datasheet text preview:
TPS75801, TPS75815 TPS75818, TPS75825, TSP75833
SLVS330B JUNE 2001 REVISED MAY 2002
FAST-TRANSIENT RESPONSE 3-A LOW-DROPOUT VOLTAGE REGULATORS
FEATURES D 3-A Low-Dropout Voltage Regulator D Available in 1.5-V, 1.8-V, 2.5-V, and 3.3-V D D D D D D
Fixed-Output and Adjustable Versions Dropout Voltage Typically 150 mV at 3 A (TPS75833) Low 125 µA Typical Quiescent Current Fast Transient Response 3% Tolerance Over Specified Conditions for Fixed-Output Versions Available in 5-Pin TO220 and TO263 Surface-Mount Packages Thermal Shutdown Protection
TO220 (KC) PACKAGE (TOP VIEW) EN IN GND OUTPUT FB/NC 1 2 3 4 5 EN IN GND OUTPUT FB/NC
DESCRIPTION
The TPS758xx family of 3-A low dropout (LDO) regulators contains four fixed voltage option regulators and an adjustable voltage option regulator. These devices are capable of supplying 3 A of output current with a dropout of 150 mV (TPS75833). Therefore, the device is capable of performing a 3.3-V to 2.5-V conversion. Quiescent current is 125 µA at full load and drops down to less than 1 µA when the device is disabled. The TPS758xx is designed to have fast transient response for large load current changes.
TO263 (KTT) PACKAGE (TOP VIEW) 1 2 3 4 5
TPS75833
VO Change in Output Voltage mV
DROPOUT VOLTAGE vs JUNCTION TEMPERATURE
250
TPS75815
LOAD TRANSIENT RESPONSE
150 100 50 0 50 100 150 0.75 A di + µs dt 3 VO = 1.5 V Co = 100 µF
V O Dropout Voltage mV D
IO = 3 A VO = 3.3 V 200
150
100
50
0 40 25 10 5
20 35 50 65 80 95 110 125
0
20
0 40 60 80 100 120 140 160 180 200
TJ Junction Temperature °C
t Time µs
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.
PRODUCTION DATA information is 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 2002, Texas Instruments Incorporated
IO Output Current A 1
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TPS75801, TPS75815 TPS75818, TPS75825, TSP75833
SLVS330B JUNE 2001 REVISED MAY 2002
DESCRIPTION (continued)
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 150 mV at an output current of 3 A for the TPS75833) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 125 µA over the full range of output current). These two key specifications yield a significant improvement in operating life for battery-powered systems. The device is enabled when EN (enable) is connected to a high voltage level (>2 V). Applying a low voltage level (<0.7 V) to EN shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C. The TPS758xx is offered in 1.5-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.22 V to 5 V). Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS758xx family is available in a 5-pin TO220 (KC) and TO263 (KTT) packages.
AVAILABLE OPTIONS TJ OUTPUT VOLTAGE (TYP) 3.3 V 2.5 V 40°C to 125°C 1.8 V 1.5 V Adjustable 1.22 V to 5 V TO220 (KC) TPS75833KC TPS75825KC TPS75818KC TPS75815KC TPS75801KC TO263(KTT) TPS75833KTT TPS75825KTT TPS75818KTT TPS75815KTT TPS75801KTT
NOTE: The TPS75801 is programmable using an external resistor divider (see application information). The KTT package is available taped and reeled. Add an R suffix to the device type (e.g., TPS75801KTTR) to indicate tape and reel.
VI
2
IN
NC
5
OUT 1 µF 1 EN
4
VO Co 47 µF
+ GND 3
See application information section for capacitor selection details.
Figure 1. Typical Application Configuration (For Fixed Output Options)
2
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TPS75801, TPS75815 TPS75818, TPS75825, TSP75833
SLVS330B JUNE 2001 REVISED MAY 2002
functional block diagram--adjustable version
VIN UVLO Current Sense ILIM GND EN _ SHUTDOWN R1 + FB UVLO R2 VOUT
Thermal Shutdown Vref = 1.22 V
External to the Device
VIN
Bandgap Reference
functional block diagram--fixed version
VIN UVLO Current Sense ILIM _ GND UVLO EN R2 SHUTDOWN R1 + VOUT
Thermal Shutdown Vref = 1.22 V VIN Bandgap Reference
Terminal Functions (TPS758xx)
TERMINAL NAME EN FB/NC GND IN OUTPUT NO. 1 5 3 2 4 I O I/O I I Enable input Feedback input voltage for adjustable device/no connection for fixed options Regulator ground Input voltage Regulated output voltage DESCRIPTION
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