# NJM2374AE-TE1-#ZZZB

**JRC** · DC-DC Converters · SOP-8

NJM2374AE-TE1-#ZZZB from JRC, in a SOP-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 | CS | passive | Collector of the internal 1.5A (max.) output switch transistor; the switch has a 40V (NJM2374AE: 48V) maximum output switch voltage rating. |
| 2 | ES | passive | Emitter of the internal output switch transistor, rated for 1.5A maximum switch current. |
| 3 | CT | passive | Timing capacitor connection that sets the oscillator frequency (100Hz to 100kHz range). |
| 4 | GND | power_in | Ground pin of the IC. |
| 5 | IN+ | input | Error amplifier/comparator input compared against the 1.25V (±2%) reference threshold, with input range -0.3V to 48V on the NJM2374AE. |
| 6 | V+ | power_in | Supply voltage input, operating range 2.5V to 48V for the NJM2374AE (maximum 48V). |
| 7 | SI | input | Peak current sense input (Ipk sense threshold Vth=300mV) used for the over current limit circuit. |
| 8 | CD | passive | Driver collector of the output switch (Darlington connection when tied to CS). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JRC |
| Package | SOP-8 |
| Category | Power Management ICs |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating Current 1 | ICC1 |  | 2.8 | 4 | mA | V+=5V, CT=1nF, SI=V+, IN+>Vth, ES=GND, Ta=25°C | 4 |
| Operating Current 2 (NJM2374AE only) | ICC2 |  | 3.4 | 4.5 | mA | V+=48V, CT=1nF, SI=V+, IN+>Vth, ES=GND | 4 |
| Charge Current | Ichg | 12 | 20 | 30 | µA | V+=5V, Ta=25°C | 4 |
| Discharge Current | Idis | 110 | 180 | 300 | µA | V+=5V, Ta=25°C | 4 |
| Peak Current Sense Voltage | Vipk | 250 | 300 | 350 | mV | Ichg=Idis | 4 |
| Saturation Voltage 1 | Vsat1 |  | 1 | 1.3 | V | Darlington Connection (CS=CD), ISW=0.7A | 4 |
| Saturation Voltage 2 | Vsat2 |  | 0.5 | 0.7 | V | ISW=0.7A, Ic(driver)=50mA (Forced β≈14) | 4 |
| DC Voltage Gain | hFE | 35 | 120 |  |  | ISW=0.7A, VCE=5.0V | 4 |
| Threshold Voltage | Vth | 1.225 | 1.25 | 1.275 | V |  | 4 |
| Input Bias Current | IIB |  | 40 | 400 | nA | IN+=0V | 4 |
| Maximum Supply Voltage | V+ |  |  | 48 | V | NJM2374AE, Ta=25°C | 3 |
| Output Switch Current | ISW |  |  | 1.5 | A | Ta=25°C | 3 |
| Output Switch Voltage | VSW |  |  | 48 | V | NJM2374AE, Ta=25°C | 3 |
| Comparator Input Voltage | VIR | -0.3 |  | 48 | V | NJM2374AE, Ta=25°C | 3 |
| Power Dissipation (SOP8) | PD |  |  | 1000 | mW | At on PC board, Ta=25°C | 3 |
| Operating Temperature Range | Topr | -40 |  | 85 | °C |  | 3 |
| Storage Temperature Range | Tstg | -50 |  | 150 | °C |  | 3 |
| Operating Voltage | V+ | 2.5 |  | 48 | V | NJM2374AE; Ta=25°C, at low temperature minimum is 3.0V | 1 |
| Voltage Swing | VOSC |  | 0.5 |  | VP-P | V+=5V, Ta=25°C | 4 |
| Discharge to Charge Current Ratio | Iratio |  | 9 |  |  | SI=V+ | 4 |
| Output Transistor Bias Resistance | Rbias |  | 160 |  | Ω |  | 4 |
| Collector Off-State Current | IC(Off) |  | 10 |  | nA | VCE=48V (NJM2374AE) | 4 |

## CAD (KiCad official)

- Symbol: `NJM2374AE-TE1-#ZZZB`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `njm2374ae-te1-zzzb-etched.step` / `njm2374ae-te1-zzzb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `njm2374ae-te1-zzzb.step` / `njm2374ae-te1-zzzb.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [JRC datasheet](docs/njm2374ae-te1-zzzb-datasheet.pdf) (8 pp, sha256 `7e09f6325a65f364`, retrieved 2026-10-30, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/njm2374ae-te1-zzzb-datasheet.pdf)