IP6537 - 20W USB PD Buck Charger SOC | Injoinic
MPN: IP6537 ✓ AktifIP6537 Ringkasan
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.
Alternatif penggantian untuk IP6537 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
IP6537_C_30W20V
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
IP6537U
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
IP6537 Rating Maksimal & Karakteristik Listrik
| Topologi | Synchronous Buck Converter |
| Rentang Tegangan Masukan | 6 V to 32 V |
| Rentang Tegangan Output | 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) |
| Mulai Dengan Lebih Lambat | Integrated |
| Input OVP/UVP | Integrated |
| Output OCP/OVP/UVP | Integrated |
| Short-Circuit Protection | Integrated |
| Paket | QFN-24 (4 mm x 4 mm) |
| Tipe Mounting | Surface Mount |
| Status RoHS | Compliant |
Konfigurasi Pin IP6537
| Pin produk 1 | VIN — Power input (6 V to 32 V) |
| Pin produk 2 | VIN — Power input (6 V to 32 V) |
| Pin produk 3 | EN — Enable input |
| Pin produk 4 | BST — Bootstrap for high-side gate driver |
| Pin produk 5 | SW — Switching node (to external inductor) |
| Pin produk 6 | SW — Switching node |
| Pin produk 7 | GND — Power ground |
| Pin produk 8 | GND — Power ground |
| Pin produk 9 | FB — Feedback (output voltage sense) |
| Pin produk 10 | COMP — Loop compensation |
| Pin produk 11 | VOUT — Regulated output voltage |
| Pin produk 12 | VOUT — Regulated output voltage |
| Pin produk 13 | CC1 — USB-C configuration channel 1 |
| Pin produk 14 | CC2 — USB-C configuration channel 2 |
| Pin produk 15 | DP — USB-C data line (reserved / NC on charger-only variants) |
| Pin produk 16 | DM — USB-C data line (reserved / NC on charger-only variants) |
| Pin produk 17 | PGND — Power ground reference |
| Pin produk 18 | PGND — Power ground reference |
| Pin produk 19 | AGND — Analog ground |
| Pin produk 20 | NTC — Temperature sense input |
| Pin produk 21 | PROG — Programming / configuration |
| Pin produk 22 | STAT — Status output |
| Pin produk 23 | VDD — Internal LDO output (bypass to GND) |
| Pin produk 24 | PG — Power-good indicator |
Aplikasi Umum
IP6537 cocok untuk 6 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk IP6537 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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 |
Diferensiator Kunci
- Compact 4x4 QFN-24 footprint with integrated synchronous FETs (vsIP2721 + external buck controller)
- Built-in USB PD protocol state machine (vsIP2721 (PD controller only))
- 20 W baseline with same-brand 30W/45W drop-in upgrades (vsIP6537U (45 W))
Catatan Desain
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.
Informasi Konformitas
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.
