仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 5.5V |
| Voltage-Output(Min/Fixed) | 1.9V |
| Current-Output | 150mA |
| Current-Quiescent(Iq) | 800 nA |
| Current-Supply(Max) | 8 µA |
| PSRR | 40dB ~ 15dB (10Hz ~ 1kHz) |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Current, Over Temperature, Reverse Polarity |
| OperatingTemperature | -40°C ~ 105°C |
| MountingType | Surface Mount |
| Package/Case | SOT-23-5 Thin, TSOT-23-5 |
概要
Description
TPS78319DDCR is TI’s fixed-output low-dropout regulator (LDO) in the TPS783 family. It delivers a stable 1.9 V rail from a higher input supply, with features suited for battery-powered or space-constrained designs.
Key points:
- Fixed output: 1.9 V
- Low dropout and low quiescent current for efficiency in portable apps
- Enable (or power-down) control pin
- Protection: current limit and thermal shutdown
- Packaging code DDCR indicates a specific TI package option (pinout/mechanical details in the datasheet)
Applications: powering microcontrollers, sensors, analog/RF blocks, and other small embedded circuits requiring a clean 1.9 V supply.
For exact electrical specs (input range, dropout at load, tolerance, current limit) and the precise package/pinout, consult the TPS78319DDCR datasheet and TI product page.
Key points:
- Fixed output: 1.9 V
- Low dropout and low quiescent current for efficiency in portable apps
- Enable (or power-down) control pin
- Protection: current limit and thermal shutdown
- Packaging code DDCR indicates a specific TI package option (pinout/mechanical details in the datasheet)
Applications: powering microcontrollers, sensors, analog/RF blocks, and other small embedded circuits requiring a clean 1.9 V supply.
For exact electrical specs (input range, dropout at load, tolerance, current limit) and the precise package/pinout, consult the TPS78319DDCR datasheet and TI product page.
Equivalent
TPS78319DDCR is TI’s fixed 1.9 V, 150 mA LDO (TPS7831x family). Direct replacements include other TI TPS7831x parts with the same 1.9 V option in different packages. Cross-references from other vendors depend on package and tolerance; common 1.9 V, ~150 mA LDOs include Microchip MIC5319, On Semiconductor NCP468x, Analog Devices ADP170. For exact matches, use TI’s Cross-Reference tool.
Features
Key features of TPS78319DDCR (fixed 1.9 V LDO, DDCR package):
- Fixed 1.9-V output
- Up to ~150 mA load current
- Low dropout regulator
- Enable pin for software/hardware shutdown
- Very low quiescent current
- Accurate output (tight voltage tolerance)
- Overcurrent and short-circuit protection
- Thermal shutdown protection
- Input voltage range up to 5.5 V
- 8-pin DDCR (VSSOP) package with thermal pad
Useful for portable/battery-powered apps requiring a small, efficient 1.9-V rail.
- Fixed 1.9-V output
- Up to ~150 mA load current
- Low dropout regulator
- Enable pin for software/hardware shutdown
- Very low quiescent current
- Accurate output (tight voltage tolerance)
- Overcurrent and short-circuit protection
- Thermal shutdown protection
- Input voltage range up to 5.5 V
- 8-pin DDCR (VSSOP) package with thermal pad
Useful for portable/battery-powered apps requiring a small, efficient 1.9-V rail.
Pinout
8 pins. It is a fixed-output low-dropout regulator (LDO) in the DDCR package with a 1.9 V output; includes an enable input to turn the regulator on/off (VIN → VOUT, GND).
Manufacturer
- Manufacturer: Texas Instruments Incorporated (TI).
- What kind of company: TI is an American multinational semiconductor company that designs, manufactures, and sells analog and mixed‑signal integrated circuits and embedded processing products, including power-management devices.
- What kind of company: TI is an American multinational semiconductor company that designs, manufactures, and sells analog and mixed‑signal integrated circuits and embedded processing products, including power-management devices.
Application
Application areas for TPS78319DDCR (LDO regulator):
- Battery-powered/portable devices (wearables, IoT sensors)
- Point-of-load regulation for MCUs, DSPs, memory, FPGAs/SoCs
- Analog/mixed-signal front ends (sensors, ADCs/DACs, op-amps)
- RF/wireless modules and transceivers
- Medical and portable instrumentation
- Consumer electronics and USB-powered gadgets
- Any space-constrained designs needing a low-noise, stable voltage rail
- Battery-powered/portable devices (wearables, IoT sensors)
- Point-of-load regulation for MCUs, DSPs, memory, FPGAs/SoCs
- Analog/mixed-signal front ends (sensors, ADCs/DACs, op-amps)
- RF/wireless modules and transceivers
- Medical and portable instrumentation
- Consumer electronics and USB-powered gadgets
- Any space-constrained designs needing a low-noise, stable voltage rail
Package
TPS78319DDCR uses TI’s VSON-8 package: an 8-pin, leadless 3×3 mm package with an exposed pad.
