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MAX660CSA-T Equivalent & Substitute Parts
Part Overview
The MAX660CSA-T is a charge pump switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power management applications requiring positive or negative fixed output voltage conversion. This 8-SOIC surface mount device delivers 100mA output current with input voltage range of 1.5V to 5.5V and operating temperature range of 0°C to 70°C.
The MAX660CSA-T is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer Part Number | MAX660CSA-T |
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Category | Power Management (PMIC) |
| Topology | Charge Pump |
| Output Configuration | Positive or Negative |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 1.5V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | -Vin, 2Vin |
| Current - Output | 100mA |
| Frequency - Switching | 10kHz, 80kHz |
| Synchronous Rectifier | No |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MAX660CSA-T is determined by the following critical parameters:
Core Electrical Parameters:
- Input voltage range: 1.5V to 5.5V
- Output current capability: 100mA minimum
- Output configuration: Positive or Negative
- Topology: Charge Pump
- Output type: Fixed
Physical & Environmental Parameters:
- Package: 8-SOIC (0.154", 3.90mm Width)
- Mounting type: Surface Mount
- Operating temperature range compatibility
Compliance & Certification:
- RoHS3 Compliance
- MSL rating: 1 (Unlimited)
Substitute parts must maintain compatibility across all core electrical parameters and physical package specifications. Parts with extended operating temperature ranges or additional output voltage options (such as Vin/2) are functionally compatible as they provide equal or superior capability within the specified input and output current constraints.
Parameter Comparison
| Parameter | MAX660CSA-T | MAX660CSA+T | LM2660M/NOPB | LM2660MX/NOPB | LTC660CS8#PBF | LTC660CS8#TRPBF | MAX660M/NOPB | MAX660MX/NOPB |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Texas Instruments | Texas Instruments | Analog Devices Inc. | Analog Devices Inc. | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active |
| Voltage - Input (Min) | 1.5V | 1.5V | 1.5V | 1.5V | 1.5V, 2.5V | 1.5V, 2.5V | 1.5V | 1.5V |
| Voltage - Input (Max) | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V |
| Voltage - Output (Min/Fixed) | -Vin, 2Vin | -Vin, 2Vin | -Vin, 2Vin, Vin/2 | -Vin, 2Vin, Vin/2 | -Vin, 2Vin, Vin/2 | -Vin, 2Vin, Vin/2 | -Vin, 2Vin | -Vin, 2Vin |
| Current - Output | 100mA | 100mA | 100mA | 100mA | 100mA | 100mA | 100mA | 100mA |
| Frequency - Switching | 10kHz, 80kHz | 10kHz, 80kHz | 5kHz, 40kHz | 5kHz, 40kHz | 10kHz, 80kHz | 10kHz, 80kHz | 10kHz, 80kHz | 10kHz, 80kHz |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TJ) | -40°C ~ 85°C (TJ) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Direct Replacement (Same Manufacturer): MAX660CSA+T is the primary direct substitute for MAX660CSA-T. Both are manufactured by Analog Devices Inc./Maxim Integrated with identical electrical specifications and package configuration. MAX660CSA+T is in active product status with significantly higher inventory availability (12,700 units vs. 959 units), making it the preferred choice for immediate component sourcing.
Active Alternatives (Extended Temperature Range): MAX660M/NOPB and MAX660MX/NOPB are functionally equivalent alternatives manufactured by Texas Instruments. These parts maintain identical electrical specifications and package form factor but offer extended operating temperature range (-40°C to 85°C vs. 0°C to 70°C). Selection of these parts is appropriate for applications requiring broader temperature performance. MAX660MX/NOPB offers the highest inventory availability (18,106 units) among all substitutes.
Extended Capability Alternatives: LM2660M/NOPB, LM2660MX/NOPB, LTC660CS8#PBF, and LTC660CS8#TRPBF provide additional output voltage option (Vin/2) beyond the core -Vin and 2Vin specifications. These parts maintain full compatibility with MAX660CSA-T electrical and physical requirements while offering enhanced functional flexibility. LM2660MX/NOPB provides the highest inventory level (27,669 units) among all available substitutes.
Compliance Status: All substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring regulatory and environmental compatibility with the original specification.
Frequently Asked Questions (FAQ)
Q: Can MAX660CSA+T be used as a direct replacement for MAX660CSA-T? A: Yes. MAX660CSA+T is manufactured by the same company (Analog Devices Inc./Maxim Integrated) with identical electrical specifications, output configuration, current rating, and 8-SOIC package. The primary difference is product status (active vs. obsolete) and packaging format (Cut Tape & Digi-Reel vs. standard packaging).
Q: What is the difference between MAX660CSA-T and LM2660MX/NOPB? A: Both parts share identical input voltage range (1.5V to 5.5V), output current (100mA), package (8-SOIC), and mounting type (Surface Mount). Key differences are: manufacturer (Analog Devices vs. Texas Instruments), switching frequency (10kHz/80kHz vs. 5kHz/40kHz), operating temperature range (0°C-70°C vs. -40°C-85°C), and output voltage options (LM2660MX/NOPB includes Vin/2 option). LM2660MX/NOPB is suitable for applications requiring extended temperature performance or the additional Vin/2 output configuration.
Q: Are LTC660CS8#PBF and LTC660CS8#TRPBF interchangeable? A: Yes. Both parts are identical in electrical specifications and package configuration. The difference is packaging format: LTC660CS8#PBF is supplied in Tube packaging, while LTC660CS8#TRPBF is supplied in Tape & Reel (TR) format. Selection depends on production volume and handling requirements.
Q: Can I use a substitute part with extended temperature range in place of MAX660CSA-T? A: Yes. Parts with extended operating temperature ranges (such as MAX660M/NOPB and MAX660MX/NOPB with -40°C to 85°C range) are fully compatible with applications designed for the 0°C to 70°C range of MAX660CSA-T. Extended temperature capability provides additional design margin without compromising functionality.
Q: What is the significance of the Vin/2 output option in LM2660 and LTC660 series? A: The Vin/2 output option provides an additional voltage conversion capability beyond the -Vin and 2Vin options available in MAX660CSA-T. This feature does not affect compatibility with existing designs but offers enhanced flexibility for new applications requiring voltage division functionality.
Q: Which substitute part offers the best inventory availability? A: LM2660MX/NOPB offers the highest inventory level at 27,669 units. This part combines active product status, extended operating temperature range, additional output voltage option, and superior stock availability, making it suitable for high-volume production requirements.
Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring full regulatory and environmental compatibility with the original MAX660CSA-T specification.
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