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Product Detailed Parameters
- Description：IC REG LINEAR 1.5V/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)：1.5V, 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 AP7312-1533W6-7 is a dual fixed output low dropout linear regulator manufactured by Diodes Incorporated. It provides two independent positive voltage outputs of 1.5V and 3.3V, each capable of delivering up to 150mA. The device operates with an input voltage range from 2V to 6V and features a typical quiescent current of 60µA. It includes integrated protection mechanisms such as current limit, short circuit, and thermal shutdown. 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 against overcurrent, short circuits, and overheating
- Fast transient response suitable for rapidly changing load conditions
- Stable operation with low ESR ceramic capacitors
Applications
- Cellular phones
- Smart phones and PDAs
- MP3/MP4 players
- Bluetooth headsets
- Low power applications
Procurement Notes
Verify the specific ordering suffix W6-7 confirms the SOT-26 package and tape & reel packaging format. Confirm RoHS compliance status and check for any applicable exemptions. Ensure the supplier source is authorized to avoid counterfeit components. Review the datasheet revision history for any updates to electrical characteristics or pin assignments before finalizing procurement.
Selection Notes
Select this component when a dual-output LDO is required within a 6V maximum input constraint. Verify that the combined load does not exceed thermal dissipation limits for the SOT-26 package. Ensure the application requires fixed 1.5V and 3.3V rails. Check if the fast start-up time and low quiescent current meet system standby requirements.
Part Context
The AP7312 series consists of dual 150mA low dropout regulators available in various fixed output combinations. This specific part number denotes the 1.5V/3.3V variant in the SOT-26 package. The series is designed for portable electronics requiring efficient power management and compact footprint solutions.
Replacement Considerations
The datasheet explicitly recommends using the AP7345D instead of the AP7312 for new designs.
FAQ
What is the minimum capacitance required for stable operation?
The device requires at least 1µF ceramic capacitors on both the input and output pins for stability.
How are the two channels controlled?
Each channel has a dedicated enable pin (EN1 and EN2). A logic high level turns the respective channel on, while a logic low turns it off.
