SP6134H - 600kHz High-Voltage Sync PWM Controller | MaxLinear
Teilenummer: SP6134H ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $3.45 | $3,45 |
| 10 | $3.1 | $31,00 |
| 100 | $2.65 | $265,00 |
| 500 | $2.3 | $1.150,00 |
| 1.000 | $1.95 | $1.950,00 |
SP6134H Übersicht
Key features include a wide 3V-to-28V VIN range for conversions from 3.3V, 5V, 9.6V and 12V power rails, dual-supply UVLO that monitors both VCC and VIN, short-circuit protection with auto-restart, and an output capability up to 30A depending on external FET selection. Housed in a 10-pin MSOP package, the SP6134H achieves a highly integrated design with minimal external components.
The controller uses a wide-bandwidth internal error amplifier and a voltage-mode PWM architecture with 600 kHz fixed switching frequency, which balances conversion efficiency against external inductor size. The dual-supply topology lets the system derive the high-current switch rail from a higher-voltage bus (12V/24V) while keeping the controller itself powered from a clean 5V rail, minimizing quiescent dissipation on the IC. UVLO on both rails prevents operation under invalid bias conditions.
Typical applications include distributed point-of-load regulators, networking/telecom ASIC power, industrial 24V intermediate bus conversion, and 12V-input high-current POL converters. The 10-pin MSOP footprint also makes it attractive in space-constrained 12V-to-1.xV power rails for FPGAs, ASICs, and DSP cores.
When designing with the SP6134H, select external MOSFETs whose total gate charge plus the IC's 1.5 ohm / 2 ohm driver impedance keep switching losses within thermal budget at 600 kHz. Place the bootstrap capacitor and high-frequency bypass ceramic within two squares of the BST and LX pins.
This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in-Alternativen für SP6134H – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit SP6134H (gleiche Bauform und Footprint) – abweichend in Topology, Switching Frequency, UVLO, Mounting Type, Error Amplifier.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
SP6134
✅ Drop-In✓ Auf Lager
$0.51 / Stück
Datenblatt ansehen →SP6132
✅ Drop-In✓ Auf Lager
$0.82 / Stück
Datenblatt ansehen →SP6132H
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
SP6137
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
SP6139
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
SP6134H Grenzwerte & elektrische Eigenschaften
| Topologie | Synchronous Buck Controller (voltage-mode PWM) |
| Schaltfrequenz | 600 kHz (fixed) |
| VCC Range (Controller Bias) | 3 V to 15 V |
| VIN Range (Power Stage Input) | 3 V to 28 V |
| Adjustable Output Voltage | Down to 0.8 V |
| Output Current (External FET-limited) | Up to 30 A |
| Gate Driver - Sink Resistance | 1.5 ohm |
| Gate Driver - Source Resistance | 2 ohm |
| Driver Type | On-board N-FET synchronous driver |
| UVLO | Dual-supply (monitors both VCC and VIN) |
| Protection Features | Short-circuit protection with auto-restart, UVLO |
| Gehäuse | 10-pin MSOP |
| Montageart | Surface Mount |
| RoHS / Lead-Free | RoHS compliant, lead-free (per MaxLinear product page) |
SP6134H Pin-Konfiguration
| Pin 1 | VIN — Power-stage input voltage (3V to 28V) |
| Pin 2 | VCC — Controller bias supply (3V to 15V) |
| Pin 3 | EN/UVLO — Enable input / undervoltage lockout threshold |
| Pin 4 | SS/TRK — Soft-start / tracking input |
| Pin 5 | FB — Feedback input (0.8V reference) |
| Pin 6 | COMP — Compensation node for the error amplifier |
| Pin 7 | GND — Ground |
| Pin 8 | BST — Bootstrap supply for the high-side gate driver |
| Pin 9 | HG/UG — High-side gate drive output |
| Pin 10 | LG/LX — Low-side gate drive / switch node (LX sense) |
Typische Anwendungen
SP6134H ist geeignet für 6 Anwendungs: Distributed Point-of-Load (POL) for Networking ASICs, 24V Industrial Intermediate-Bus Conversion, 12V Input High-Current POL, Telecom Card Split-Plane Power, FPGA / DSP Core Rail Generation, Automotive 12V Accessory POL.
Distributed Point-of-Load (POL) for Networking ASICs
The SP6134H fits networking ASIC point-of-load conversion because its 3V-to-28V VIN range accepts the standard 12V or 24V intermediate bus used in telecom and switch-fabric systems. With 600 kHz fixed switching, the controller allows compact LAN magnetics and output inductor selection below 2.2 uH, which is critical when placing the POL within 25 mm of the ASIC. The dual-supply topology lets the system draw the controller bias from a clean 5V rail while the high-current rail swings on the bus, minimizing dissipation on the controller IC and reducing overall BOM count.
Empfohlen
24V Industrial Intermediate-Bus Conversion
The SP6134H is well suited for 24V industrial bus to lower-voltage POL conversion, where the 28V absolute-maximum VIN rating provides margin against the 24V nominal plus transients on long factory cables. Its dual-supply UVLO monitors both the 5V VCC bias and the 28V VIN rail, preventing inrush misfires when the 24V bus rises slowly at cold start. Short-circuit protection with auto-restart handles sustained output faults that can occur when downstream loads are hot-plugged into a live backplane - a common failure mode in industrial PLC and motor-drive subsystems.
Empfohlen
12V Input High-Current POL
The SP6134H's 600 kHz switching frequency and on-board 1.5 ohm sink / 2 ohm source N-FET drivers let it drive standard logic-level N-FETs directly, eliminating external gate-driver ICs and shrinking the 12V-to-1.xV POL footprint. The adjustable FB0 reference supports any output from 0.8V up to within 200 mV of VIN, covering the 1.0V, 1.2V, 1.5V, 1.8V and 2.5V rails common to FPGAs, ASICs and DSP cores. Output current scales with the external FETs - a typical low-FOM pair delivers 15A to 30A with adequate copper pour.
Empfohlen
Telecom Card Split-Plane Power
The SP6134H was designed specifically for split-plane telecom card applications where the controller is biased from a low-current 5V plane while the synchronous buck draws current from the higher-voltage 12V plane. This topology minimizes dissipation on the controller IC and lets the system use thinner copper on the 5V plane. The wide 3V-to-28V VIN range covers 12V and 24V telecom standards, while the 600 kHz fixed frequency keeps EMI predictable for CISPR-22 compliance in card-edge applications.
Empfohlen
FPGA / DSP Core Rail Generation
The SP6134H's 0.8V reference and 600 kHz switching frequency make it ideal for the 1.0V to 1.2V core rails of modern FPGAs, DSPs and SoCs, where fast transient response and small PCB footprint are essential. The on-board N-FET synchronous drivers eliminate the need for an external bootstrap diode in most designs, simplifying the BOM around the digital IC. Up to 30A output capability (FET-dependent) covers the high-current transients demanded by FPGA core blocks during state-machine wake events.
Empfohlen
Automotive 12V Accessory POL
The SP6134H's 28V VIN capability gives it substantial margin against the 40V load-dump transients often clamped to ~36V on automotive 12V buses, when paired with upstream TVS protection. The dual-supply UVLO ensures clean cold-crank behavior because the controller holds off until both VCC and VIN cross their thresholds. Short-circuit protection with auto-restart supports the ISO 7637-2 transient environment, and the 10-pin MSOP package is small enough to fit in space-constrained body-electronics modules like HVAC controllers and instrument clusters.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für SP6134H – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | SP6134 | SP6132 | SP6132H | SP6137 | SP6139 |
|---|---|---|---|---|---|---|
| Package | MSOP-10 | MSOP-10 - same | MSOP-10 - same | MSOP-10 - same | MSOP-10 - same | MSOP-10 - same |
| Brand | MaxLinear | MaxLinear | MaxLinear | MaxLinear | MaxLinear | MaxLinear |
| Switching Frequency | 600 kHz | 300 kHz | different (family) | higher (family) | different (family) | different (family) |
| VIN Range | 3 V to 28 V | up to ~15V (lower) | family-dependent | family-dependent | family-dependent | family-dependent |
| VCC Range | 3 V to 15 V | 3 V to 15 V | family-dependent | family-dependent | family-dependent | family-dependent |
| Topology | Sync Buck Controller (voltage-mode) | Sync Buck Controller | Sync Buck Controller | Sync Buck Controller | Sync Buck Controller | Sync Buck Controller |
| Gate Driver | 1.5 ohm sink / 2 ohm source N-FET | N-FET drivers (similar) | N-FET drivers (similar) | N-FET drivers (similar) | N-FET drivers (similar) | N-FET drivers (similar) |
| UVLO | Dual (VCC + VIN) | Dual (VCC + VIN) | Dual (VCC + VIN) | Dual (VCC + VIN) | Dual (VCC + VIN) | Dual (VCC + VIN) |
| RoHS / Lead-Free | Yes | Yes | Yes | Yes | Yes | Yes |
Wichtigste Unterscheidungsmerkmale
- Split-plane / dual-supply architecture (vs. SP6134)
- 600 kHz fixed switching frequency (vs. SP6132)
- On-board 1.5 ohm sink / 2 ohm source N-FET drivers (vs. SP6139)
Designhinweise
Place the bootstrap capacitor (typically 0.1 uF to 1 uF X7R) within 2 mm of the BST pin and the high-side FET source. Keep the LX copper plane small to minimize parasitic inductance; long LX traces cause excessive ringing at 600 kHz and 28V that can couple into the BST supply and overstress the high-side driver. Use a single ground pour split into power and signal sections, joining them only at the IC GND pin to avoid ground bounce from gate-drive currents corrupting the FB reference.
Although the SP6134H controller IC itself dissipates relatively little power (most loss is in the external FETs), the 10-pin MSOP package still needs adequate copper to keep junction temperature below 125 C. Estimated: at 5V VCC x 5 mA quiescent, the IC dissipates ~25 mW; if higher VCC or higher bias current is used, add thermal copper under the exposed pad. For 30A output designs, the external FETs typically need 50-100 mm^2 of copper per FET for heat spreading.
Do not omit the bootstrap diode or use a diode with insufficient reverse-voltage rating for 28V operation; reverse leakage at high VIN can discharge the BST capacitor and cause high-side drive failure. Ensure the soft-start capacitor is sized for the actual output capacitance to avoid inrush currents tripping the short-circuit protection. Lastly, do not assume the SP6134 SP6132 SP6132H SP6137 SP6139 are fully interchangeable - their pinouts are family-compatible, but switching frequency and VIN ratings differ and require re-validation of magnetics and bootstrap sizing.
Route the FB trace as a Kelvin connection directly to the output capacitor sense point, away from the LX node and gate-drive traces. Keep the VCC bypass ceramic within 1 mm of the VCC pin to filter the gate-charge spikes drawn by the synchronous drivers at 600 kHz. For dual-supply designs, route the 5V VCC bias separately from the 12V/24V VIN rail; using the same copper pour for both causes VCC ripple from VIN transients and can mis-trigger the dual-supply UVLO during cold start.
Compliance-Informationen
RoHS-compliant and lead-free per the MaxLinear product page. REACH, halogen-free, and conflict-minerals status not explicitly listed in the provided web data.
