IP6537 - 20W USB PD Buck Charger SOC | Injoinic
N.º da peça: IP6537 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $1.85 | $1,85 |
| 10 | $1.65 | $16,50 |
| 100 | $1.42 | $142,00 |
| 500 | $1.18 | $590,00 |
| 1.000 | $0.95 | $950,00 |
| 3.000 | $0.78 | $2.340,00 |
IP6537 Visão geral
Key features include built-in synchronous power MOSFETs that eliminate external switches, integrated USB PD protocol support, automatic output voltage negotiation, soft-start control to limit inrush current, comprehensive protection (input OVP/UVP, output OCP/OVP/UVP, and short-circuit protection), and CV/CC output characteristics. The IC is housed in a compact 4 mm × 4 mm QFN-24 package suitable for high-density charger layouts.
The IP6537 belongs to the buck converter family (step-down switching regulator -> DC-DC converter -> power management IC). A buck converter reduces a higher input voltage to a lower output voltage using a controlled switch, an inductor, and a rectifier. By integrating the high-side and low-side MOSFETs, the IP6537 shrinks the BOM versus discrete buck designs and improves efficiency, typically reaching the mid-90% range at moderate loads.
Internally, the device combines a peak-current-mode buck controller with adaptive gate-drive timing and a PD protocol state machine. Built-in line-drop compensation maintains accurate output voltage under varying cable loads, while the integrated NMOS charge-pump drives the high-side switch reliably across the 6 V-32 V input range. This architecture supports constant-voltage (CV) and constant-current (CC) modes required by USB PD 3.0 PPS-style adapters.
Typical applications include 20 W USB-C PD wall chargers, multi-protocol fast-charging adapters (PPS, QC), portable power banks, and 5 V-12 V auxiliary supplies in industrial equipment. The wide input range also enables 24 V bus operation in factory automation.
When designing with this device, follow the inductor and capacitor selection guidelines in the manufacturer datasheet to maintain loop stability. Verify that the selected output voltage / current combinations stay within the IC's thermal envelope, especially at 12 V/1.67 A where dissipation increases with input voltage.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para IP6537 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
IP6537_C_30W20V
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
IP6537U
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
IP6537 Classificações máximas e características elétricas
| Topologia | Synchronous Buck Converter |
| Faixa de tensão de entrada | 6 V to 32 V |
| Faixa de tensão de saída | 3 V to 12 V (PD auto-adjust) |
| Maximum PD Output Power | 20 W |
| 5V Output Current | 3 A |
| 9V Output Current | 2.22 A |
| 12V Output Current | 1.67 A |
| Built-in Power MOSFETs | Yes (synchronous high-side + low-side) |
| Charging Protocol | USB PD |
| Output Mode | CV/CC (Constant Voltage / Constant Current) |
| Soft-start | Integrated |
| Input OVP/UVP | Integrated |
| Output OCP/OVP/UVP | Integrated |
| Short-Circuit Protection | Integrated |
| Encapsulamento | QFN-24 (4 mm x 4 mm) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do IP6537
| Pino 1 | VIN — Power input (6 V to 32 V) |
| Pino 2 | VIN — Power input (6 V to 32 V) |
| Pino 3 | EN — Enable input |
| Pino 4 | BST — Bootstrap for high-side gate driver |
| Pino 5 | SW — Switching node (to external inductor) |
| Pino 6 | SW — Switching node |
| Pino 7 | GND — Power ground |
| Pino 8 | GND — Power ground |
| Pino 9 | FB — Feedback (output voltage sense) |
| Pino 10 | COMP — Loop compensation |
| Pino 11 | VOUT — Regulated output voltage |
| Pino 12 | VOUT — Regulated output voltage |
| Pino 13 | CC1 — USB-C configuration channel 1 |
| Pino 14 | CC2 — USB-C configuration channel 2 |
| Pino 15 | DP — USB-C data line (reserved / NC on charger-only variants) |
| Pino 16 | DM — USB-C data line (reserved / NC on charger-only variants) |
| Pino 17 | PGND — Power ground reference |
| Pino 18 | PGND — Power ground reference |
| Pino 19 | AGND — Analog ground |
| Pino 20 | NTC — Temperature sense input |
| Pino 21 | PROG — Programming / configuration |
| Pino 22 | STAT — Status output |
| Pino 23 | VDD — Internal LDO output (bypass to GND) |
| Pino 24 | PG — Power-good indicator |
Aplicações típicas
IP6537 é adequado para 6 aplicaçãos: USB-C PD Wall Charger (20 W), Multi-Protocol Fast-Charging Adapter, Portable Power Bank (USB-C PD), Industrial 24V Bus to USB-C Adapter, Docking Station USB-C Power Port, IoT Gateway Auxiliary Supply.
USB-C PD Wall Charger (20 W)
The IP6537 is purpose-built for compact 20 W USB-C Power Delivery wall chargers, where its integrated synchronous buck MOSFETs and PD protocol engine collapse the BOM to a few external components. With a 6 V-32 V input range it accepts rectified mains from a small flyback stage and delivers 5 V/3 A, 9 V/2.22 A, or 12 V/1.67 A under auto-negotiation. Typical peak efficiency sits at 92%-96%, eliminating the need for bulky heatsinks in a wall-plug form factor. Designers place input bulk, a single inductor, and output ceramic capacitors on a 4-layer FR4 PCB to keep the charger under 35 mm × 35 mm.
Recomendado
Multi-Protocol Fast-Charging Adapter
In multi-protocol travel adapters the IP6537 provides the 20 W PD tier while sibling controllers handle QC, AFC, and SCP rails. Its built-in OVP/UVP/OCP/SCP protection suite guards the adapter against shorted Type-C cables and non-compliant sinks, lowering the manufacturer's field-return rate. The 6 V-32 V input range lets the same PCB work behind a 12 V or 24 V DC bus, simplifying SKU consolidation. Combined with proper CC pull-up resistors, the IP6537 negotiates a 9 V/2.22 A PDO within 200 ms of Type-C attach.
Recomendado
Portable Power Bank (USB-C PD)
Power banks benefit from the IP6537's synchronous buck topology because mid-90% efficiency preserves battery capacity per discharge cycle. The IC accepts 6 V-32 V from a 2S-7S Li-ion pack and delivers a clean 5 V/3 A or 9 V/2.22 A USB-C PD output. The integrated soft-start prevents the input inrush that often resets a USB-C source on attach, a frequent complaint with discrete buck designs. With its 4 mm × 4 mm QFN-24 footprint, the IP6537 leaves room for a high-density 4S2P lithium pack in a slimline enclosure.
Recomendado
Industrial 24V Bus to USB-C Adapter
Factory-automation panels often need a localized 5 V or 12 V USB-C port for diagnostics tablets and handheld HMI displays. The IP6537 accepts a 24 V industrial bus directly (within its 6 V-32 V window) and delivers an isolated, regulated 5 V/3 A USB-C rail without any intermediate DC-DC stage. Built-in OVP/UVP protects against the 36 V transient peaks common on long factory wiring. The QFN-24 package's exposed thermal pad mounts directly to an aluminum chassis, sustaining 20 W continuous without a fan.
Recomendado
Docking Station USB-C Power Port
Universal docking stations use the IP6537 to deliver a dedicated 20 W USB-C charging port downstream of an internal 19 V supply. The IC's 6 V-32 V input range lines up with 19 V laptop adapters, eliminating a pre-regulation stage. CC1/CC2 detection and integrated PD negotiation deliver 9 V or 12 V PDOs to attached laptops and tablets without software intervention. The synchronous buck efficiency stays above 92% at the typical 12 V/1.67 A PDO, keeping the dock chassis cool under sustained load.
Recomendado
IoT Gateway Auxiliary Supply
Edge IoT gateways frequently need an auxiliary 5 V or 12 V rail to power secondary radios or sensor stacks. The IP6537 integrates all power conversion and protection in a single QFN-24 IC, giving hardware designers a smaller BOM footprint than discrete buck solutions. Its 6 V-32 V input tolerance covers PoE-derived 12 V rails as well as 24 V industrial supplies, simplifying the gateway's power-tree. Combined OVP/OCP/SCP ensures the gateway survives downstream sensor wiring faults.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para IP6537 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | IP6537_C_30W20V | IP6537U |
|---|---|---|---|
| Brand | Injoinic | Injoinic | Injoinic |
| Package | QFN-24 (4x4) | QFN-24 (4x4) - same | QFN-24 (4x4) - same |
| Topology | Synchronous Buck | Synchronous Buck | Synchronous Buck |
| Input Voltage Range | 6 V to 32 V | 6 V to 32 V | 6 V to 32 V |
| Maximum Output Power | 20 W | 30 W | 45 W |
| Supported PDOs | 5V/3A, 9V/2.22A, 12V/1.67A | 5V/3A, 9V/3A, 12V/2.5A, 15V/2A, 20V/1.5A | 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/2.25A |
| Built-in Power MOSFETs | Yes | Yes | Yes |
| Charging Protocol | USB PD | USB PD + multi-protocol | USB PD + multi-protocol |
Principais diferenciais
- Compact 4x4 QFN-24 footprint with integrated synchronous FETs (vs IP2721 + external buck controller)
- Built-in USB PD protocol state machine (vs IP2721 (PD controller only))
- 20 W baseline with same-brand 30W/45W drop-in upgrades (vs IP6537U (45 W))
Notas de projeto
Estimated: at VIN=20 V, VOUT=12 V, IOUT=1.67 A, the IP6537 dissipates approximately (20-12) * 1.67 = 13.4 W of heat. With the QFN-24 4x4 package on a 1 oz 4-layer board, expect theta_JA in the 35-45 C/W range, giving a 470-600 C junction rise. Always attach the exposed thermal pad to a continuous copper pour on inner and outer layers, and consider a 25 mm x 25 mm copper area at minimum for sustained 20 W operation.
Keep the high-di/dt loop (input capacitor -> SW -> low-side FET -> GND) as small as possible by placing input ceramic capacitors within 2 mm of the VIN and PGND pins. Use a single 22 uF X7R 50 V ceramic plus a 0.1 uF 50 V bypass. The SW trace should be short and avoid parallel runs with FB or compensation traces to minimize noise coupling.
Do not bypass the BST capacitor - it provides bias for the high-side gate driver and missing it causes the high-side FET to stay partially on, leading to shoot-through and destructive heating. Also avoid running the SW trace under the IC - the BST capacitor should sit close to the BST and SW pins with the diode or bootstrap FET oriented per the datasheet reference layout.
Informações de conformidade
RoHS compliance stated by JLCPCB listing 'IP6537_C_30W20V - QFN24 New Arrivals ROHS' as of 2026-10-20. AEC-Q100 not applicable - consumer/industrial charger IC. Reach and halogen status not in verified data, marked unknown.
