AZ7500BP-E1 Equivalent & Substitute Parts

Part Overview

The AZ7500BP-E1 is a Buck Regulator Positive Output Step-Down DC-DC Controller IC manufactured by Diodes Incorporated. This 16-DIP through-hole component functions as a transistor driver for step-down voltage regulation applications with a single output phase. The part is currently in Last Time Buy status, making identification of equivalent alternatives essential for design continuity and long-term supply chain planning.

Key Parameters

Parameter	Value
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Function	Step-Down Buck Regulator Controller
Output Type	Transistor Driver
Output Configuration	Positive
Number of Outputs	1
Output Phases	1
Voltage Supply Range (Vcc/Vdd)	7V ~ 36V
Switching Frequency Range	1kHz ~ 200kHz
Maximum Duty Cycle	45%
Operating Temperature Range	-40°C ~ 85°C (TA)
Mounting Type	Through Hole
Package / Case	16-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the AZ7500BP-E1 are determined by strict parametric equivalence across the following criteria:

Identical base product number (AZ7500 series)
Matching output topology (Buck, step-down, positive output)
Identical electrical specifications (7V ~ 36V supply, 1kHz ~ 200kHz switching frequency, 45% max duty cycle)
Identical package and pinout (16-DIP through-hole)
Identical operating temperature range (-40°C ~ 85°C)
Identical control features and output configuration (single-phase transistor driver with enable control)
Compliance with ROHS3, MSL 1, and REACH standards

The AZ7500BP-E1 has two parametric equivalents: AZ7500BUP-E1 and AZ7500EP-E1. Both parts share all critical electrical and mechanical parameters with the main part, differing only in packaging format and product lifecycle status.

Parameter Comparison

Parameter	AZ7500BP-E1	AZ7500BUP-E1	AZ7500EP-E1
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
Category	Power Management (PMIC)	Power Management (PMIC)	Power Management (PMIC)
Function	Step-Down Buck Controller	Step-Down Buck Controller	Step-Down Buck Controller
Output Type	Transistor Driver	Transistor Driver	Transistor Driver
Output Configuration	Positive	Positive	Positive
Number of Outputs	1	1	1
Output Phases	1	1	1
Voltage Supply Range (Vcc/Vdd)	7V ~ 36V	7V ~ 36V	7V ~ 36V
Switching Frequency Range	1kHz ~ 200kHz	1kHz ~ 200kHz	1kHz ~ 200kHz
Maximum Duty Cycle	45%	45%	45%
Operating Temperature Range	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Last Time Buy	Active	Last Time Buy
Inventory Availability	2,900 Pcs	874 Pcs	55,400 Pcs

Engineering Selection Recommendations

For applications currently using the AZ7500BP-E1, both AZ7500BUP-E1 and AZ7500EP-E1 provide full parametric equivalence and direct pin-compatible substitution.

AZ7500EP-E1 is the preferred long-term alternative due to its Active product status and significantly higher inventory availability (55,400 units). This part ensures sustained supply chain access and eliminates lifecycle discontinuity concerns associated with Last Time Buy designations.

AZ7500BUP-E1 remains a valid substitute with identical electrical and mechanical specifications. However, lower inventory levels (874 units) and Active status (versus Last Time Buy) should be considered in procurement planning.

All three parts maintain identical ROHS3 compliance, MSL 1 rating, and REACH unaffected status, ensuring regulatory and environmental compatibility across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can AZ7500EP-E1 be used as a direct replacement for AZ7500BP-E1?

A: Yes. Both parts are parametrically equivalent with identical electrical specifications, pin configuration, and 16-DIP package. No circuit modifications are required for substitution.

Q: What is the difference between AZ7500BP-E1 and AZ7500BUP-E1?

A: The parts are electrically and mechanically identical. The difference lies in packaging format and product lifecycle status. AZ7500BUP-E1 is currently Active, while AZ7500BP-E1 is Last Time Buy.

Q: Why is AZ7500EP-E1 recommended over AZ7500BUP-E1?

A: AZ7500EP-E1 offers significantly higher inventory availability (55,400 units versus 874 units), providing greater supply chain security for long-term production requirements.

Q: Are all three parts ROHS3 compliant?

A: Yes. AZ7500BP-E1, AZ7500BUP-E1, and AZ7500EP-E1 are all ROHS3 compliant with MSL 1 rating and REACH unaffected status.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All three parts share identical pinout, package dimensions (16-DIP, 0.300" spacing), and electrical characteristics. PCB layouts require no modification for substitution.

Q: What is the significance of Last Time Buy status?

A: Last Time Buy indicates that the manufacturer will discontinue production after a specified date. Parts in this status should be evaluated for long-term availability. AZ7500EP-E1 (Active status) is recommended for new designs or long-term production planning.

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