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Product Detailed Parameters
- Description：IC REG LINEAR 1.8V/3.3V SOT-26
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：2
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：1.8V, 3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.3V @ 150mA, 0.2V @ 150mA
- Current - Output：150mA, 150mA
- Current - Quiescent (Iq)：80 µA
- Current - Supply (Max)：-
- PSRR：65dB (1kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-26
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Overview
The AP7312-1833W6-7 is a dual fixed output low dropout linear regulator manufactured by Diodes Incorporated. It provides two independent voltage channels with outputs of 1.8V and 3.3V, each capable of delivering up to 150mA. The device operates within an input voltage range of 2V to 6V and features a typical quiescent current of 60µA. It includes integrated current limit, short circuit, and thermal shutdown protections. The component is housed in a SOT-26 surface-mount package.
Feature Summary
- Dual-channel architecture with independent enable pins for individual channel control
- Integrated protection mechanisms including current limiting, short circuit prevention, and thermal shutdown
- Fast transient response capability designed for rapidly changing load conditions
Applications
- Cellular phones
- Smart phones and PDAs
- MP3/MP4 players
- Bluetooth headsets
- Low power applications
Procurement Notes
Verify the specific ordering suffix W6-7 to confirm the SOT-26 package type and tape-and-reel packaging format. Ensure compatibility with the recommended minimum 1µF ceramic output capacitors for stability. Confirm that the design accounts for the device's maximum junction temperature limits under expected operating conditions.
Selection Notes
Select this component when a dual-output LDO solution is required for portable electronics. The 1.8V and 3.3V combination suits systems needing separate logic and peripheral rails. Consider the 60µA quiescent current for battery life optimization. Verify that the 150mA per channel rating meets the peak load requirements of the target application circuits.
Part Context
This part belongs to the AP7312 family of dual 150mA low dropout regulators. The datasheet notes that the AP7312 series is not recommended for new designs and suggests using the AP7345D instead. The AP7312 remains available in SOT-26 and DFN2018-6 packages with various fixed output combinations.
Replacement Considerations
Public documentation explicitly recommends the AP7345D as the preferred alternative for new designs. No other specific substitute part numbers are confirmed in the provided source material.
