LM828M5X Equivalent & Substitute Parts

Part Overview

The LM828M5X is a charge pump switching regulator IC manufactured by Texas Instruments, designed for power management applications requiring positive or negative fixed output voltage generation. This device operates as a PMIC (Power Management Integrated Circuit) with a fixed output of -Vin or 2Vin and delivers 25mA output current in a compact SC-74A/SOT-753 surface mount package.

The LM828M5X carries a Last Time Buy product status, indicating that Texas Instruments has discontinued this part number. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this component.

Substiute Parts

LM828M5X

Texas InstrumentsIn Stock: 25605LM828M5X Datasheet

Current PartRFQ

LM828M5X/NOPB

Texas InstrumentsIn Stock: 65259LM828M5X/NOPB Datasheet

MFR RecommendedRFQ

MAX828EUK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 5360MAX828EUK+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM828M5X is determined by the following critical parameters:

Primary Substitution Criteria:

• Topology: Charge Pump
• Package / Case: SC-74A, SOT-753 (SOT-23-5 supplier package)
• Output Current: 25mA
• Switching Frequency: 12kHz
• Operating Temperature Range: -40°C ~ 85°C
• Input Voltage Range: 1.8V to 5.5V minimum compatibility
• RoHS3 Compliance and MSL Level 1

Substitution Logic: Parts are grouped as equivalent or substitute based on matching topology, package form factor, output current capability, and thermal operating range. Output voltage configuration flexibility (positive or negative) is evaluated individually for each substitute candidate. Parts maintaining identical electrical specifications and package requirements are classified as direct equivalents. Parts with restricted output configurations (negative only) are classified as conditional substitutes, suitable only for applications requiring negative output voltage generation.

Parameter Comparison

Engineering Selection Recommendations

LM828M5X/NOPB (Texas Instruments): This part is the manufacturer-recommended equivalent and direct replacement for the LM828M5X. It maintains identical electrical specifications, package form factor, and output voltage configuration flexibility. The LM828M5X/NOPB carries Active product status, ensuring long-term availability and supply chain stability. This part is the primary selection for applications requiring either positive or negative output voltage generation. RoHS3 compliance and MSL Level 1 certification are maintained.

MAX828EUK+T (Analog Devices Inc./Maxim Integrated): This part is a conditional substitute suitable only for applications requiring negative output voltage generation (-Vin). The MAX828EUK+T does not support positive output voltage configuration (2Vin), restricting its use to designs utilizing only the negative output mode. The minimum input voltage specification is 1.5V, providing extended low-voltage operation compared to the LM828M5X. This part carries Active product status and maintains RoHS3 compliance and MSL Level 1 certification. Selection of this part requires confirmation that the application design does not require positive output voltage capability.

Frequently Asked Questions (FAQ)

Q: Can the LM828M5X/NOPB be used as a direct replacement for the LM828M5X?

A: Yes. The LM828M5X/NOPB is the manufacturer-recommended equivalent part. Both parts share identical electrical specifications, package form factor (SOT-23-5), output current rating (25mA), switching frequency (12kHz), and operating temperature range (-40°C ~ 85°C). The primary difference is product status: LM828M5X is Last Time Buy, while LM828M5X/NOPB is Active. No design modifications are required for substitution.

Q: Is the MAX828EUK+T a direct replacement for the LM828M5X?

A: The MAX828EUK+T is a conditional substitute. Both parts share identical package form factor (SOT-23-5), output current rating (25mA), switching frequency (12kHz), and operating temperature range. However, the MAX828EUK+T supports only negative output voltage generation (-Vin), while the LM828M5X supports both positive and negative configurations (-Vin, 2Vin). The MAX828EUK+T is suitable only for applications utilizing negative output voltage exclusively. Applications requiring positive output voltage capability must use the LM828M5X/NOPB.

Q: What is the significance of the SOT-23-5 package designation?

A: SOT-23-5 is the supplier device package designation for the SC-74A/SOT-753 case outline. This five-pin surface mount package is the physical form factor for all three parts listed. PCB footprint compatibility is maintained across all substitute parts, allowing direct board-level replacement without layout modifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The LM828M5X/NOPB and MAX828EUK+T both carry ROHS3 Compliant status with Moisture Sensitivity Level 1 (Unlimited). Environmental and regulatory compliance is maintained across all substitute options.

Q: What is the difference between the LM828M5X and LM828M5X/NOPB part numbers?

A: The "/NOPB" suffix indicates "No Plumbum" (lead-free) packaging. Both parts are functionally identical. The LM828M5X/NOPB is the current production equivalent with Active status, while the LM828M5X is Last Time Buy. For new designs and ongoing production, the LM828M5X/NOPB is the recommended selection.

Q: Can the MAX828EUK+T operate at lower input voltages than the LM828M5X?

A: The MAX828EUK+T specifies a minimum input voltage of 1.5V, compared to 1.8V for the LM828M5X. This provides extended low-voltage operation capability. However, this advantage applies only to applications requiring negative output voltage generation. For applications requiring positive output voltage capability, the LM828M5X/NOPB must be used, which maintains the 1.8V minimum input voltage specification.