TPIC46L03DB Equivalent & Substitute Parts

Part Overview

The TPIC46L03DB is a low-side gate driver IC manufactured by Texas Instruments, designed for N-Channel MOSFET applications in power management circuits. This 28-SSOP surface mount device operates with a 4.5V to 5.5V supply voltage and provides six independent driver channels with non-inverting logic configuration.

The TPIC46L03DB has reached obsolete status, making it necessary to identify functionally equivalent substitute components for ongoing design support and production continuity. Suitable alternatives must maintain identical electrical characteristics, package specifications, and operational parameters to ensure direct replacement capability without circuit redesign.

Substiute Parts

TPIC46L03DB

Texas InstrumentsIn Stock: 770TPIC46L03DB Datasheet

Current PartRFQ

TPIC46L01DBG4

Texas InstrumentsIn Stock: 1081TPIC46L01DBG4 Datasheet

MFR RecommendedRFQ

TPIC46L02DBG4

Texas InstrumentsIn Stock: 1577TPIC46L02DBG4 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPIC46L03DB are qualified based on strict equivalence across the following critical parameters:

• Driven Configuration: Low-Side operation only
• Channel Architecture: Six independent driver channels
• Gate Control: N-Channel MOSFET non-inverting logic
• Supply Voltage Range: 4.5V to 5.5V operation
• Output Characteristics: 1.2mA peak source and sink current
• Switching Performance: 4.6µs rise time and 3µs fall time
• Temperature Range: -40°C to 150°C junction temperature
• Physical Package: 28-SSOP surface mount form factor with 5.30mm width

All identified substitute parts maintain these specifications without deviation, enabling direct functional replacement in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both TPIC46L01DBG4 and TPIC46L02DBG4 are qualified substitutes for the obsolete TPIC46L03DB. All three components maintain identical electrical specifications, package geometry, and environmental compliance certifications.

The TPIC46L01DBG4 and TPIC46L02DBG4 are currently discontinued at DiGi Electronics but remain available through alternative distribution channels. Selection between substitute options should be based on current inventory availability and supply chain logistics rather than technical performance, as both parts are electrically and mechanically equivalent.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity rating, ensuring compatibility with modern manufacturing processes and environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can TPIC46L01DBG4 or TPIC46L02DBG4 be used as direct replacements for TPIC46L03DB?

A: Yes. Both substitute parts maintain identical electrical characteristics, output current ratings, switching performance, supply voltage range, and 28-SSOP package specifications. Direct PCB substitution is supported without circuit modification.

Q: Are there any differences in driver channel configuration between these parts?

A: No. All three parts provide six independent N-Channel MOSFET driver channels with non-inverting logic and identical peak output current of 1.2mA source and sink.

Q: Do the substitute parts operate across the same temperature range?

A: Yes. TPIC46L01DBG4 and TPIC46L02DBG4 both operate from -40°C to 150°C junction temperature, matching the TPIC46L03DB specification.

Q: Are there any supply voltage compatibility concerns?

A: No. All parts require 4.5V to 5.5V supply voltage operation. Existing power supply designs require no modification.

Q: Do the substitute parts fit the same PCB footprint?

A: Yes. Both TPIC46L01DBG4 and TPIC46L02DBG4 use the 28-SSOP package with 5.30mm width, providing identical mechanical compatibility with existing board layouts.

Q: What is the moisture sensitivity level for substitute parts?

A: Both substitute parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: Are substitute parts RoHS and REACH compliant?

A: Yes. TPIC46L01DBG4 and TPIC46L02DBG4 are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance for global markets.