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Texas Instruments TLV73318PQDBVRQ1
- Part No.:
- TLV73318PQDBVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Description:
- IC REG LINEAR 1.8V 300MA SOT23-5
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
- Shipping:
Product Details
TLV73318PQDBVRQ1 — TI automotive 1.8 V, 300 mA LDO
Fixed-output SOT-23 regulator with enable and active output discharge.
Overview
TLV73318PQDBVRQ1 is the 1.8 V, five-pin SOT-23 (DBV) order code in Texas Instruments' automotive TLV733P-Q1 family. The exact code is identified in the TI package table. It provides a fixed positive rail with 300 mA output capability and active discharge when disabled.
Key Advantages
- Fixed 1.8 V output in a compact SOT-23 package.
- Stable operation with or without input and output capacitors under TI's specified conditions.
- Active output discharge helps clear the rail when disabled.
- AEC-Q100 qualification supports automotive design use.
Feature Summary
- 1.4 to 5.5 V operating input range.
- Up to 300 mA output current.
- Enable control and foldback overcurrent protection.
- TI cites 34 µA typical ground current for the family.
Package & Footprint
Original catalog package: SC-74A, SOT-753. TI identifies this exact order code as five-pin SOT-23 (DBV). The registered 
depicts the package class; compare the footprint with TI's DBV mechanical drawing.
Pin Functions
TI's DBV top-view pin-function table gives these connections.
| Pin | Function |
|---|---|
| 1 | IN, positive supply input |
| 2 | GND, ground |
| 3 | EN, active-high enable |
| 4 | NC, no internal connection |
| 5 | OUT, regulated 1.8 V output |
Key Specifications
| Parameter | Manufacturer value or condition |
|---|---|
| Fixed output | 1.8 V |
| Output current | Up to 300 mA |
| Input range | 1.4 to 5.5 V |
| Output accuracy | 1% typical, 1.4% maximum family statement under specified conditions |
| Typical ground current | 34 µA family value |
| Operating ambient qualification | AEC-Q100 grade 1, -40 to 125 degrees C ambient |
| Package | Five-pin SOT-23 (DBV) |
| Capacitors | Stable with or without capacitors; TI recommends a small 1 µF output ceramic for transient response |
Use the exact TI electrical conditions to assess load, dropout and temperature limits for this 1.8 V variant.
Replacement Considerations
Match 1.8 V fixed output, five-pin DBV footprint, IN/GND/EN/NC/OUT pin order, 300 mA capability, enable thresholds, active discharge and automotive qualification. The six-pin WSON variant has a different pinout. No internal substitute is linked without an exact API match.
Manufacturer Information
Primary source: Texas Instruments TLV733P-Q1 data sheet, SBVS283F. The order table lists TLV73318PQDBVRQ1 as the five-pin DBV version; Figure 5-2 and Table 5-1 define its pin functions.
Applications
Compact 1.8 V rails in automotive camera, infotainment or navigation electronics, with system-level validation to the applicable vehicle requirements.
Quality & Authenticity
Check the complete TLV73318PQDBVRQ1 order code, DBV package, device marking and lot traceability against TI records. A generic package JPG alone cannot authenticate a device.
FAQ
Is pin 4 an output? No. Pin 4 is NC in the DBV version.
Can the output run without a capacitor? TI specifies stable operation without one, but recommends a small ceramic capacitor for improved transients.
What happens when EN is low? The regulator shuts down and active discharge pulls down the output.
Engineering Notice
Check supply headroom, output load, enable logic, transient response and thermal performance against the current TI data sheet before automotive production.
TLV73318PQDBVRQ1 Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 78 µA
- Current - Supply (Max):
- -
- PSRR:
- 68dB ~ 28dB (100Hz ~ 100kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
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