Request Quote
(Ships tomorrow)
MP4700GS-Z LED Driver Controller Equivalent & Substitute Parts
Part Overview
The MP4700GS-Z is an active LED Driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This device functions as a DC DC Controller with Step-Down (Buck) topology, delivering PWM dimming control for single-output applications. The part operates across an 8V to 18V supply range at 160kHz switching frequency, with automotive-grade qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility allow direct functional replacement in backlight and lighting applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | MP4700GS-Z |
| Manufacturer | Monolithic Power Systems Inc. |
| Category | Power Management (PMIC) |
| Type | DC DC Controller |
| Topology | Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage - Supply (Min) | 8V |
| Voltage - Supply (Max) | 18V |
| Frequency | 160kHz |
| Dimming | PWM |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | Automotive |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitute parts for the MP4700GS-Z are categorized based on strict alignment with the following critical parameters:
Primary Substitution Criteria:
- DC DC Controller type with Step-Down (Buck) topology
- Single output configuration
- Supply voltage range compatibility (minimum 8V, maximum 18V)
- PWM dimming capability
- Operating temperature range -40°C to 125°C
- Surface mount packaging with compatible pin count and footprint
- ROHS3 compliance and automotive qualification
Parametric Equivalent (Same Base Series): MP4700GS-P maintains identical electrical specifications and topology as the main part, differing only in packaging format (Tape & Reel vs. standard packaging).
Manufacturer Recommended Substitutes: Parts including FL7734MX, LM3409MYX/NOPB, LM3409QMY/NOPB, LT3756EMSE#PBF, LT3922IUFD#PBF, LTC3783IDHD#PBF, MAX1698EUB+, NCL30161MNTXG, and RT8496GS are listed as manufacturer-recommended alternatives. These parts share core DC DC controller functionality and dimming capability but may differ in topology flexibility, supply voltage range, package type, or frequency specifications. Substitution validity depends on application-specific requirements within the allowed parameter ranges.
Parameter Comparison
| Parameter | MP4700GS-Z | MP4700GS-P | FL7734MX | LM3409MYX/NOPB | LM3409QMY/NOPB | LT3756EMSE#PBF | LT3922IUFD#PBF | LTC3783IDHD#PBF | MAX1698EUB+ | NCL30161MNTXG | RT8496GS |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | MPS | MPS | onsemi | TI | TI | ADI | ADI | ADI | ADI/Maxim | onsemi | Richtek |
| Type | DC DC Controller | DC DC Controller | DC DC Controller | DC DC Controller | DC DC Controller | DC DC Controller | DC DC Controller | DC DC Controller | DC DC Controller | DC DC Controller | DC DC Controller |
| Topology | Step-Down (Buck) | Step-Down (Buck) | Flyback, Buck, Boost | Step-Down (Buck) | Step-Down (Buck) | Flyback, SEPIC, Buck, Boost | Step-Up (Boost) | Flyback, SEPIC, Buck, Boost | Step-Up (Boost) | Step-Down (Buck) | Buck, Boost |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Min) | 8V | 8V | 6.75V | 6V | 6V | 6V | 2.8V | 3V | 2.7V | 8V | 4.5V |
| Voltage - Supply (Max) | 18V | 18V | 30V | 42V | 42V | 100V | 36V | 36V | 5.5V | 40V | 36V |
| Frequency | 160kHz | 160kHz | — | — | — | 100kHz ~ 1MHz | 200kHz ~ 2MHz | 20kHz ~ 1MHz | — | 2.4MHz | — |
| Dimming | PWM | PWM | — | Analog, PWM | Analog, PWM | Analog, PWM | Analog, PWM | Analog, PWM | — | PWM | Analog, PWM |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Grade | Automotive | Automotive | — | Automotive | Automotive (AEC-Q100) | — | Automotive | — | — | — | — |
| Package / Case | 8-SOIC | 8-SOIC | 16-SOIC | 10-HVSSOP | 10-HVSSOP | 16-TFSOP Exposed Pad | 28-WFQFN Exposed Pad | 16-WFDFN Exposed Pad | 10-TFSOP/MSOP | 10-VFDFN Exposed Pad | 14-SOIC |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Direct Parametric Equivalent: MP4700GS-P is the primary substitute, offering identical electrical specifications and topology. The only difference is packaging format (Tape & Reel). This part is suitable for direct replacement without design modification.
Topology-Matched Substitutes (Step-Down Buck Primary Function): NCL30161MNTXG (onsemi) maintains Step-Down Buck topology with PWM dimming across the 8V to 40V supply range and operates at -40°C to 125°C. Package differs (10-DFN vs. 8-SOIC), requiring PCB layout adjustment. LM3409MYX/NOPB and LM3409QMY/NOPB (Texas Instruments) provide Step-Down Buck topology with extended supply range (6V to 42V) and automotive qualification. LM3409QMY/NOPB includes AEC-Q100 qualification. Both use 10-HVSSOP packaging.
Multi-Topology Substitutes (Flexible Converter Architecture): LTC3783IDHD#PBF, LT3756EMSE#PBF, and FL7734MX support multiple topologies including Step-Down Buck, enabling application flexibility beyond the primary buck function. These parts accommodate wider supply voltage ranges and frequency specifications. Package changes require PCB redesign.
Boost Topology Alternatives: LT3922IUFD#PBF and MAX1698EUB+ provide Step-Up Boost topology for applications requiring voltage elevation. LT3922IUFD#PBF operates across 2.8V to 36V with automotive grade. MAX1698EUB+ operates across 2.7V to 5.5V, limiting applicability to lower voltage systems.
Dual-Topology Option: RT8496GS (Richtek) supports both Step-Down Buck and Step-Up Boost topologies across 4.5V to 36V supply range with PWM and Analog dimming, offering maximum design flexibility.
All substitute parts maintain ROHS3 compliance and active product status. Selection should prioritize topology match, supply voltage compatibility, operating temperature range, and package compatibility with existing PCB design.
Frequently Asked Questions (FAQ)
Q: Can MP4700GS-P replace MP4700GS-Z directly? A: Yes. MP4700GS-P is a parametric equivalent with identical electrical specifications, topology, and operating characteristics. The only difference is packaging format (Tape & Reel vs. standard packaging). No design changes are required.
Q: What is the primary difference between the MP4700GS-Z and NCL30161MNTXG? A: Both are Step-Down Buck controllers with PWM dimming and -40°C to 125°C operating range. MP4700GS-Z operates at 160kHz with 8V to 18V supply. NCL30161MNTXG operates at 2.4MHz with 8V to 40V supply and uses 10-DFN packaging instead of 8-SOIC. The higher frequency and extended supply range of NCL30161MNTXG may require circuit redesign.
Q: Why do some substitutes have different topologies (Boost, Flyback, SEPIC)? A: Multi-topology controllers like LTC3783IDHD#PBF and LT3756EMSE#PBF provide design flexibility by supporting multiple converter architectures. While the MP4700GS-Z is optimized for Step-Down Buck applications, these alternatives can be configured for different topologies if application requirements change. However, this flexibility requires different circuit design and component selection.
Q: Are all substitutes automotive-grade? A: No. MP4700GS-Z, LM3409MYX/NOPB, LM3409QMY/NOPB, and LT3922IUFD#PBF carry automotive grade qualification. LM3409QMY/NOPB includes AEC-Q100 qualification. Other substitutes do not specify automotive grade. For automotive applications, select only parts with explicit automotive qualification.
Q: What package considerations apply when selecting a substitute? A: MP4700GS-Z uses 8-SOIC packaging. Substitutes use different packages: NCL30161MNTXG (10-DFN), LM3409 variants (10-HVSSOP), LT3756EMSE#PBF (16-TFSOP), LT3922IUFD#PBF (28-QFN), LTC3783IDHD#PBF (16-DFN), MAX1698EUB+ (10-TFSOP/MSOP), and RT8496GS (14-SOIC). Package changes require PCB layout modification and may affect thermal management and signal integrity.
Q: Which substitute offers the widest supply voltage range? A: LT3756EMSE#PBF supports 6V to 100V supply range, the widest among all listed substitutes. This extended range enables use in higher voltage applications but requires appropriate circuit design for the intended output voltage.
Q: Can MAX1698EUB+ replace MP4700GS-Z? A: No. MAX1698EUB+ is a Step-Up Boost controller with 2.7V to 5.5V supply range, designed for low-voltage backlight applications. The MP4700GS-Z operates at 8V to 18V with Step-Down Buck topology. These are fundamentally different converter types unsuitable for direct replacement.
Q: What is the significance of MSL (Moisture Sensitivity Level) in substitute selection? A: MP4700GS-Z has MSL 2 (1 Year). Substitutes vary: MP4700GS-P (MSL 2), FL7734MX and LM3409 variants (MSL 3), LT3756EMSE#PBF, LT3922IUFD#PBF, LTC3783IDHD#PBF, and MAX1698EUB+ (MSL 1), and RT8496GS (MSL 3). Lower MSL values indicate less sensitivity to moisture absorption. MSL affects storage conditions and reflow processing requirements.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts