LT1054IPG4 Equivalent & Substitute Parts

Part Overview

The LT1054IPG4 is a charge pump switching regulator IC manufactured by Texas Instruments, designed for power management applications requiring positive or negative voltage generation. This device operates as a ratiometric, step-up converter with a single output capable of delivering 100mA. The LT1054IPG4 is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

LT1054IPG4

Texas InstrumentsIn Stock: 703LT1054IPG4 Datasheet

Current PartRFQ

LT1054IP

Texas InstrumentsIn Stock: 3447LT1054IP Datasheet

MFR RecommendedRFQ

LT1054IN8#PBF

Analog Devices Inc.In Stock: 1366LT1054IN8#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LT1054IPG4 are qualified based on the following critical parameters:

• Package compatibility: 8-DIP (0.300", 7.62mm) form factor with Through Hole mounting
• Functional topology: Charge pump switching regulator with ratiometric, step-up operation
• Output configuration: Positive or negative adjustable (fixed) output capability
• Electrical performance: 100mA output current and 25kHz switching frequency
• Environmental compliance: ROHS3 compliance and operating temperature range
• Pin-to-pin compatibility: Identical supplier device package (8-PDIP)

The identified substitutes maintain these core parameters while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

LT1054IP (Texas Instruments): This part is the direct manufacturer-recommended substitute, maintaining identical electrical specifications and operating temperature range as the LT1054IPG4. Active product status ensures long-term availability and supply chain continuity. ROHS3 compliance and EAR99 classification match the original part. Packaging is identical (8-DIP, 0.300", 7.62mm). This substitute is suitable for direct replacement in existing designs without circuit modification.

LT1054IN8#PBF (Analog Devices Inc.): This alternative offers extended operating temperature range (-40°C ~ 100°C) and higher maximum output voltage (30V versus 26.4V). Minimum output voltage is lower (2.5V versus 4.6V), providing broader output voltage flexibility. Active product status and ROHS3 compliance are maintained. Package and mounting type are identical. This substitute is appropriate for applications requiring extended temperature performance or wider output voltage range, provided circuit design accommodates the different voltage specifications.

Frequently Asked Questions (FAQ)

Q: Can LT1054IP be used as a direct replacement for LT1054IPG4?

A: Yes. LT1054IP maintains identical electrical specifications, package configuration (8-DIP), and operating temperature range. No circuit modifications are required for direct substitution.

Q: What are the key differences between LT1054IP and LT1054IN8#PBF?

A: Both maintain the same package, topology, and output current. LT1054IN8#PBF offers extended operating temperature (-40°C ~ 100°C versus -40°C ~ 85°C), lower minimum output voltage (2.5V versus 4.6V), and higher maximum output voltage (30V versus 26.4V). Manufacturer differs: Texas Instruments versus Analog Devices Inc.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 8-PDIP package configuration with identical pinout, enabling direct PCB-level substitution without layout changes.

Q: Does the LT1054IN8#PBF require circuit design changes?

A: Circuit modifications may be necessary if your design relies on the specific voltage output range of the original part. The LT1054IN8#PBF supports lower minimum output voltage (2.5V) and higher maximum output voltage (30V), which may require feedback network adjustment depending on your application requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. LT1054IP and LT1054IN8#PBF are both ROHS3 compliant, matching the compliance status of the discontinued LT1054IPG4.

Q: What is the availability status of these substitutes?

A: LT1054IP has 3395 units in stock (Active status). LT1054IN8#PBF has 1306 units in stock (Active status). Both are actively manufactured and available for procurement, unlike the discontinued LT1054IPG4.