ProductsPower ManagementAP2112R5-1.8TR-G1
PACKAGE REFERENCESOT89-5Confirm case, pinout and ordering suffix before purchase.
MANUFACTURER PART RECORD

AP2112R5-1.8TR-G1

Diodes Incorporated

AP2112R5-1.8TR-G1 is a Diodes Incorporated AP2112 fixed 1.8 V low-dropout regulator — 600 mA output, CMOS design with enable pin and auto-discharge, 55 µA quiescent current, in SOT-89-5, tape-and-reel packing (TR), -40 to +85 °C. The SOT-89-5 package is the selection point: more copper and power dissipation headroom than the SOT-25 version for the full 600 mA rating without throttling. Selection advice: the R5 code is the SOT-89-5 package — the K code is the smaller SOT-25, so match the full AP2112R5-1.8TR-G1 code for package, voltage and packing. The enable pin with discharge resistor simplifies power sequencing; tie it high only if you never need shutdown. Evidence: Diodes/BCD AP2112 datasheet (ordering table) and distributor listings confirm 600 mA, 1.8 V fixed, SOT-89-5 and reel packing. Match the full AP2112R5-1.8TR-G1 code. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

Power ManagementAP2112SOT89-5
MPN
AP2112R5-1.8TR-G1
Manufacturer
Diodes Incorporated
Family
AP2112
Package
SOT89-5
Manufacturer channel coverage
Checked by RFQ
Data last checked
Commercial check required
Lifecycle
Active
PROCUREMENT DATA

Identity and sourcing requirements.

Manufacturer part number
AP2112R5-1.8TR-G1
Manufacturer
Diodes Incorporated
Product family
AP2112
Category
Power Management
Package reference
SOT89-5
Manufacturer-channel report
Confirmed on request
Sourceics price status
Quoted for required quantity
Sourceics sourcing status
Supplier and stock verified during RFQ
Required order checks
Suffix, package, date code, lot, source and traceability
MANUFACTURER DATA REVIEW

Key technical specifications

Ordering-code highlights reviewed against official manufacturer documentation.

Output voltage
1.8 V
Output current min
600 mA
Package
SOT89-5
Operating temperature
-40 to 85 °C
Packing
Tape and reel
Reel quantity
1,000
Source: Diodes Incorporated product data · Reviewed 2026-09-29
ORDER-CODE COMPARISON

Same series, different order codes.

AP2112 is available in the following manufacturer order codes. They share the same AP2112 design; the table highlights package, packing and ordering differences. Quote the exact code your BOM needs.

Order codePackagePackingKey difference
AP2112K-1.2TR-G1SOT25Tape and reelCompared with AP2112K-3.3TRG1, this code has a 1.2 V fixed output and SOT25 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112K-1.8TRG1SOT-25Tape and reelFixed 1.8 V output
AP2112K-2.5TRG1SOT-25Tape and reelFixed 2.5 V output
AP2112K-2.6TR-G1SOT25Tape and reelCompared with AP2112K-3.3TRG1, this code has a 2.6 V fixed output and SOT25 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112K-3.3TRG1SOT-25Tape and reelFixed 3.3 V output
AP2112M-1.2TR-G1SO8Tape and reelCompared with AP2112K-3.3TRG1, this code has a 1.2 V fixed output and SO8 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112M-1.8TR-G1SO8Tape and reelCompared with AP2112K-3.3TRG1, this code has a 1.8 V fixed output and SO8 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112M-2.5TR-G1SO8Tape and reelCompared with AP2112K-3.3TRG1, this code has a 2.5 V fixed output and SO8 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112M-2.6TR-G1SO8Tape and reelCompared with AP2112K-3.3TRG1, this code has a 2.6 V fixed output and SO8 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112M-3.3TR-G1SO8Tape and reelCompared with AP2112K-3.3TRG1, this code has a 3.3 V fixed output and SO8 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112R5-1.2TR-G1SOT89-5Tape and reelCompared with AP2112K-3.3TRG1, this code has a 1.2 V fixed output and SOT89-5 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112R5-1.8TR-G1SOT89-5Tape and reelCompared with AP2112K-3.3TRG1, this code has a 1.8 V fixed output and SOT89-5 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112R5-2.5TR-G1SOT89-5Tape and reelCompared with AP2112K-3.3TRG1, this code has a 2.5 V fixed output and SOT89-5 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112R5-2.6TR-G1SOT89-5Tape and reelCompared with AP2112K-3.3TRG1, this code has a 2.6 V fixed output and SOT89-5 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
AP2112R5-3.3TR-G1SOT89-5Tape and reelCompared with AP2112K-3.3TRG1, this code has a 3.3 V fixed output and SOT89-5 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.
SELECTION GUIDANCE

AP2112R5-1.8TR-G1 selection guidance

AP2112R5-1.8TR-G1 is a Diodes Incorporated 600 mA CMOS LDO with fixed 1.8 V output in SOT-89-5, tape and reel — ±1.5% accuracy, 250 mV typical dropout at 600 mA, up to 6 V input, enable pin, foldback short-circuit and thermal protection with automatic output discharge.

Against AP2112R5-2.6TR-G1: 1.8 V versus 2.6 V fixed output, same package and features. The R5 (SOT-89-5) versus M (SO-8) split across the family is packaging only — same silicon — so a package swap needs a fresh thermal and layout check. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

QUOTE WORKFLOW

Four checks before a commercial offer.

01

Identity

Exact MPN, manufacturer and suffix

02

Supply

Supplier type, quantity and freshness

03

Evidence

Lot, labels, photos and documents

04

Terms

Price, lead time, payment and shipping

RELATED REFERENCES

Explore more Power Management records

Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.

COMMON QUESTIONS

AP2112R5-1.8TR-G1 FAQ

What is the difference between AP2112R5-1.8TR-G1 and AP2112K-1.2TR-G1, AP2112K-1.8TRG1, AP2112K-2.5TRG1?

These are order-code variants of the same Diodes Incorporated series. They share the core design; the ordering code selects the exact configuration — AP2112K-1.2TR-G1: Compared with AP2112K-3.3TRG1, this code has a 1.2 V fixed output and SOT25 package. A voltage or package change is not a drop-in replacement without electrical and PCB review.; AP2112K-1.8TRG1: Fixed 1.8 V output; AP2112K-2.5TRG1: Fixed 2.5 V output. AP2112R5-1.8TR-G1 itself is the SOT89-5 configuration. A code that differs by even one character may be a different device, so always quote the complete code exactly as it appears on your BOM.

What is the difference between package and packing for AP2112R5-1.8TR-G1?

The package (SOT89-5) is the physical form of the device itself. Packing describes how the devices are delivered — reel, tube, tray or cut tape. The same ordering code can ship in different packing formats depending on the lot, so confirm the required packing format when you submit your RFQ.

What operating conditions must AP2112R5-1.8TR-G1 be checked against?

For this AP2112 device (SOT89-5), the checks that matter are input/output voltage and current, thermal design at your load, and the package/packing suffix on the ordering code. Confirm all four against the Diodes Incorporated datasheet for your operating point before purchase.

How do I request a quotation for AP2112R5-1.8TR-G1?

To request a quotation for AP2112R5-1.8TR-G1, send the full ordering code, manufacturer (Diodes Incorporated), quantity, packing format and date-code needs in one RFQ. Every RFQ gets a reply within 24 hours.