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Details, datasheet, quote on part number:TPS7418D
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| Part: | TPS7418D |
| Category: | Power Management => Regulators => Linear Regulators => LDO (Low Drop Out) |
| Description: | ti TPS7418, Internally Compensated Ultra-fast Transient Response 200-mA Low-voltage (LDO) Dropout |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download TPS7418D datasheet File size : 255 kB |
| Request For quote: | Find where to buy TPS7418D
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Datasheet text preview:
TPS7415, TPS7418, TPS7425, TPS7430, TPS7433 FAST-TRANSIENT-RESPONSE USING SMALL OUTPUT CAPACITOR 200-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS212 DECEMBER 1999
D D D D D D D
Fast Transient Response Using Small Output Capacitor (10 µF) 200-mA Low-Dropout Voltage Regulator Available in 1.5-V, 1.8-V, 2.5-V, 3-V and 3.3-V Dropout Voltage Down to 170 mV at 200 mA (TPS7433) 3% Tolerance Over Specified Conditions 8-Pin SOIC Package Thermal Shutdown Protection
D PACKAGE (TOP VIEW)
EN NC NC IN
1 2 3 4
8 7 6 5
SENSE OUT GND IN
NC No internal connection
description
This device is designed to have a fast transient response and be stable with 1-µF capacitors. This combination provides high performance at a reasonable cost. Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 170 mV at an output current of 200-mA for the TPS7433). 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 TJ = 25°C. The TPS74xx is offered in 1.5-V, 1.8-V, 2.5-V, 3-V, and 3.3-V. Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS74xx family is available in 8 pin SOIC package.
TPS7433
DROPOUT VOLTAGE vs JUNCTION TEMPERATURE
300 VO Change in Output Voltage mV VI = 3.2 V 250 VDO Dropout Voltage mV IO = 200 mA 200 100 50 0 50
TPS7418 LOAD TRANSIENT RESPONSE
di/dt = 200 mA 25 µs CO = 10 µF
100
IO = 75 mA IO = 50 mA
I O Output Current mA 150
150
200 0
50 IO = 1 mA 0 50 25 0 25 50 75 100 125
0
TJ Junction Temperature °C
100 200 300 400 500 600 700 800 900 1000 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.
Copyright © 1999, Texas Instruments Incorporated
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.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
1
TPS7415, TPS7418, TPS7425, TPS7430, TPS7433 FAST-TRANSIENT-RESPONSE USING SMALL OUTPUT CAPACITOR 200-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS212 DECEMBER 1999
AVAILABLE OPTIONS OUTPUT VOLTAGE (V) TYP 3.3 3 40°C to 125°C 2.5 1.8 1.5 PACKAGED DEVICES SOIC (D) TPS7433D TPS7430D TPS7425D TPS7418D TPS7415D
TJ
The D package is available taped and reeled. Add an R suffix to the device type (e.g., TPS7433DR). TPS74xx VI 4 5 IN IN OUT 1 µF 1 EN + GND 6 CO 1 µF 7 VO SENSE 8 SENSE
ESR
See application information section for capacitor selection details.
Figure 1. Typical Application Configuration
functional block diagram
IN EN
_ + OUT SENSE R1 Vref
R2
GND
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
TPS7415, TPS7418, TPS7425, TPS7430, TPS7433 FAST-TRANSIENT-RESPONSE USING SMALL OUTPUT CAPACITOR 200-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS212 DECEMBER 1999
Terminal Functions
TERMINAL NAME EN GND IN NC OUT SENSE NO. 1 6 4, 5 2, 3 7 8 O I I I/O I Enable input Regulator ground Input voltage Not connected Regulated output voltage Sense DESCRIPTION
I absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
nput voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 8 V Voltage range at EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to VI + 0.3 V Peak output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See dissipation rating tables Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 125°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values are with respect to network terminal ground. DISSIPATION RATING TABLE 1 FREE-AIR TEMPERATURES PACKAGE D AIR FLOW (CFM) 0 250 TA < 25°C POWER RATING 568 mW 904 mW DERATING FACTOR ABOVE TA = 25°C 5.68 mW/°C 9.04 mW/°C TA = 70°C POWER RATING 312 mW 497 mW TA = 85°C POWER RATING 227 mW 361 mW
recommended operating conditions
MIN Input voltage, VI§ Output current, IO (see Note 1) 2.5 0 MAX 7 200 UNIT V mA
Operating virtual junction temperature, TJ (see Note 1) 40 125 °C § To calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load). NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the device operate under conditions beyond those specified in this table for extended periods of time.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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