component
Hi9103
Public Made by Adomby adom
Hichips(智芯) DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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Hi9103
Hichips(智芯) · DC-DC Converters · ESOP-8
Hi9103 from Hichips(智芯), in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | D | passive | Drain of the internal power MOSFET; for the Hi9103 the absolute maximum rating is -0.3 to 150 V. |
| 2 | VDD | power_in | Supply input: the chip starts when VDD exceeds 6.5 V, the operating range is 6.5 to 24 V, the internal clamp is 24 V, and the absolute maximum is -0.3 to 40 V. |
| 3 | NC | unconnected | No internal connection. |
| 4 | FB | input | Output voltage sense input; the absolute maximum is -0.3 to 6 V and the reference is 1.16 V typical, with the output set by the R3/R4 divider. |
| 5 | GND | power_in | Chip ground, which should be kept single-point connected to the VDD capacitor ground and the current-sense resistor ground. |
| 6 | NC | unconnected | No internal connection. |
| 7 | NC | unconnected | No internal connection. |
| 8 | CS | input | Current sense input referenced to GND; the absolute maximum is -0.3 to 40 V and the current-limit sense reference is 200 mV typical. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Hichips(智芯) |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VDD 供电输入 (VDD supply input voltage) | VDD | -0.3 | 40 | V | 3 | ||
| CS 管脚耐压 (CS pin voltage) | CS | -0.3 | 40 | V | 3 | ||
| 内置功率 MOS 管 Drain 端 (Hi9103 built-in MOS drain) | D(Hi9103) | -0.3 | 150 | V | 3 | ||
| FB 输出电压采样 (FB pin voltage) | FB | -0.3 | 6 | V | 3 | ||
| 存储温度 (storage temperature) | TSTG | -40 | 150 | ℃ | 3 | ||
| 工作温度 (operating temperature) | TA | -40 | 125 | ℃ | 3 | ||
| ESD HBM 人体放电模式 (ESD, human body model) | ESD | 2 | KV | HBM 人体放电模式; printed as >2 KV | 3 | ||
| 启动电流 (startup current) | ISTART | 10 | uA | 7 | |||
| VDD 电压范围 (VDD voltage range) | VDD | 6.5 | 24 | V | 7 | ||
| 限流电压 (current limit voltage) | VCS | 400 | mV | VIN＝6.5V | 7 | ||
| 电流检测基准电压 (current sense reference voltage) | VREF | 190 | 200 | 210 | mV | 7 | |
| 输出采样基准电压 (output sense reference voltage) | VFB | 1.125 | 1.16 | 1.195 | V | 7 | |
| 工作电流 (operating current) | IDD | 1 | mA | VIN＝6.5V | 7 | ||
| 线损补偿 FB 下拉电流 (line-drop compensation FB pull-down current) | ICABLE | 5 | uA | 7 | |||
| 最大占空比 (maximum duty cycle) | DMAX | 90 | % | 7 | |||
| 开关频率 (switching frequency) | FOSC | 150 | KHz | VIN=24,VOUT=12V，IOUT=1A | 7 | ||
| 驱动上拉电流 (gate drive pull-up current) | IH | 400 | mA | 7 | |||
| 驱动下拉电流 (gate drive pull-down current) | II | 600 | mA | 7 | |||
| 过温保护 (over-temperature protection) | TOVT | 142 | ℃ | 输出关闭 | 7 |
CAD (KiCad official)
- Symbol:
Hi9103 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
hi9103-etched.step/hi9103-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hi9103.step/hi9103.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Hichips(智芯) datasheet (14 pp, sha256
38e48b4d3258692c, retrieved 2026-11-06, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# Hi9103
**Hichips(智芯)** · DC-DC Converters · ESOP-8
Hi9103 from Hichips(智芯), in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | D | passive | Drain of the internal power MOSFET; for the Hi9103 the absolute maximum rating is -0.3 to 150 V. |
| 2 | VDD | power_in | Supply input: the chip starts when VDD exceeds 6.5 V, the operating range is 6.5 to 24 V, the internal clamp is 24 V, and the absolute maximum is -0.3 to 40 V. |
| 3 | NC | unconnected | No internal connection. |
| 4 | FB | input | Output voltage sense input; the absolute maximum is -0.3 to 6 V and the reference is 1.16 V typical, with the output set by the R3/R4 divider. |
| 5 | GND | power_in | Chip ground, which should be kept single-point connected to the VDD capacitor ground and the current-sense resistor ground. |
| 6 | NC | unconnected | No internal connection. |
| 7 | NC | unconnected | No internal connection. |
| 8 | CS | input | Current sense input referenced to GND; the absolute maximum is -0.3 to 40 V and the current-limit sense reference is 200 mV typical. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Hichips(智芯) |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VDD 供电输入 (VDD supply input voltage) | VDD | -0.3 | | 40 | V | | 3 |
| CS 管脚耐压 (CS pin voltage) | CS | -0.3 | | 40 | V | | 3 |
| 内置功率 MOS 管 Drain 端 (Hi9103 built-in MOS drain) | D(Hi9103) | -0.3 | | 150 | V | | 3 |
| FB 输出电压采样 (FB pin voltage) | FB | -0.3 | | 6 | V | | 3 |
| 存储温度 (storage temperature) | TSTG | -40 | | 150 | ℃ | | 3 |
| 工作温度 (operating temperature) | TA | -40 | | 125 | ℃ | | 3 |
| ESD HBM 人体放电模式 (ESD, human body model) | ESD | 2 | | | KV | HBM 人体放电模式; printed as >2 KV | 3 |
| 启动电流 (startup current) | ISTART | 10 | | | uA | | 7 |
| VDD 电压范围 (VDD voltage range) | VDD | 6.5 | | 24 | V | | 7 |
| 限流电压 (current limit voltage) | VCS | | | 400 | mV | VIN＝6.5V | 7 |
| 电流检测基准电压 (current sense reference voltage) | VREF | 190 | 200 | 210 | mV | | 7 |
| 输出采样基准电压 (output sense reference voltage) | VFB | 1.125 | 1.16 | 1.195 | V | | 7 |
| 工作电流 (operating current) | IDD | | 1 | | mA | VIN＝6.5V | 7 |
| 线损补偿 FB 下拉电流 (line-drop compensation FB pull-down current) | ICABLE | | 5 | | uA | | 7 |
| 最大占空比 (maximum duty cycle) | DMAX | | 90 | | % | | 7 |
| 开关频率 (switching frequency) | FOSC | | 150 | | KHz | VIN=24,VOUT=12V，IOUT=1A | 7 |
| 驱动上拉电流 (gate drive pull-up current) | IH | | 400 | | mA | | 7 |
| 驱动下拉电流 (gate drive pull-down current) | II | | 600 | | mA | | 7 |
| 过温保护 (over-temperature protection) | TOVT | | 142 | | ℃ | 输出关闭 | 7 |
## CAD (KiCad official)
- Symbol: `Hi9103`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`
- 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files: `hi9103-etched.step` / `hi9103-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hi9103.step` / `hi9103.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Hichips(智芯) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757759915337768960) (14 pp, sha256 `38e48b4d3258692c`, retrieved 2026-11-06, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/hi9103-datasheet.pdf)