# AZ34063UMTR-G1

**Diodes Incorporated** · DC-DC Converters · SOIC-8

AZ34063UMTR-G1 from Diodes Incorporated, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Switch Collector | output | Internal switch transistor collector. Rated to 40V and 1.5A switch current; connect to inductor/load per topology. |
| 2 | Switch Emitter | output | Internal switch transistor emitter. Rated 40V (VPIN1=40V) and 1.5A; connect to load/return path per topology. |
| 3 | Timing Capacitor | passive | External timing capacitor (CT) sets the oscillator switching frequency (up to 180 kHz). Typical value ~470 pF for the application circuits shown. |
| 4 | GND | power_in | Ground pin for all internal circuits. |
| 5 | Comparator Inverting Input | input | Inverting input of the internal comparator; compared against the 1.25V internal reference. Connect to the feedback resistor divider from VOUT to set output voltage. Input range -0.3V to 40V. |
| 6 | VCC | power_in | Voltage supply pin. Recommended operating range 3V to 36V (absolute maximum 40V). |
| 7 | IPK Sense | input | Peak current sense input. Monitors the voltage drop across an external current-sense resistor (Rsc) to limit peak current through the internal switch. |
| 8 | Driver Collector | output | Voltage driver collector. Rated 40V and up to 100 mA driver current; typically tied to VCC through a resistor in step-up applications. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOIC-8 |
| Category | PMIC |
| Pins | 8 |

## Ordering variants

- `AZ34063UMTR-G1`

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power Supply Voltage | VCC |  |  | 40 | V |  | 6 |
| Comparator Input Voltage Range | VIR | -0.3 |  | 40 | V |  | 6 |
| Switch Collector Voltage | VC(switch) |  |  | 40 | V |  | 6 |
| Switch Emitter Voltage | VE(switch) |  |  | 40 | V | VPIN 1 = 40V | 6 |
| Switch Collector to Emitter Voltage | VCE(switch) |  |  | 40 | V |  | 6 |
| Driver Collector Voltage | VC(driver) |  |  | 40 | V |  | 6 |
| Driver Collector Current | IC(driver) |  |  | 100 | mA |  | 6 |
| Switch Current | ISW |  |  | 1.5 | A |  | 6 |
| Power Dissipation SO-8 | PD |  |  | 780 | mW | TA = +25ºC | 6 |
| Thermal Resistance SO-8 | θJA |  |  | 160 | ºC/W |  | 6 |
| Operating Junction Temperature | TJ |  |  | 150 | ºC |  | 6 |
| Lead Temperature | TLEAD |  |  | 260 | ºC | Soldering, 10s | 6 |
| Storage Temperature Range | TSTG | -65 |  | 150 | ºC |  | 6 |
| ESD Human Body Model |  |  |  | 2000 | V |  | 6 |
| Supply Voltage | VCC | 3 |  | 36 | V |  | 6 |
| Ambient Temperature | TA | -40 |  | 85 | ºC |  | 6 |
| Oscillator Frequency | fOSC | 30 | 38 | 45 | KHz | VPIN5 = 0V, CT = 1.0nF, TA = +25ºC | 7 |
| Charge Current | ICHG | 30 | 38 | 45 | µA | VCC = 5.0V to 36V, TA = +25ºC | 7 |
| Discharge Current | IDISCHG | 180 | 240 | 290 | µA | VCC = 5.0V to 36V, TA = +25ºC | 7 |
| Discharge to Charge Current Ratio | IDISCHG/ICHG | 5.2 | 6.5 | 7.5 | — | Pin 7 to VCC, TA = +25ºC | 7 |
| Current Limit Sense Voltage | VIPK(sense) | 250 | 300 | 350 | mV | ICHG = IDISCHG, TA = +25ºC | 7 |
| Saturation Voltage, Darlington Connection | VCE(sat) |  | 1 | 1.3 | V | ISW = 1.0A, Pins 1, 8 connected, Common Emitter | 7 |
| Saturation Voltage | VCE(sat) |  | 0.45 | 0.7 | V | ISW = 1.0A, RPIN8 = 82Ω to VCC, Forced β = 20, Common Emitter | 7 |
| DC Current Gain | hFE | 50 | 75 |  | — | ISW = 1.0A, VCE = 5.0V, TA = +25ºC | 7 |
| Collector Off-State Current | IC(off) |  | 0.01 | 100 | µA | VCE = 36V | 7 |
| Threshold Voltage at 25ºC | VTH | 1.225 | 1.25 | 1.275 | V | TA = +25ºC | 7 |
| Threshold Voltage over temperature | VTH | 1.21 | 1.25 | 1.29 | V | TA = -40 to +85ºC | 7 |
| Threshold Voltage Line Regulation | REGLINE |  | 1.4 | 5 | mV | VCC = 3.0V to 36V | 7 |
| Input Bias Current | IIB |  | -20 | -400 | nA | VIN = 0V | 7 |
| Supply Current | ICC |  |  | 4 | mA | VCC = 5.0V to 36V, CT = 1.0nF, VPIN7 = VCC, VPIN5>VTH, VPIN2 = GND, other pins open | 7 |

## CAD (KiCad official)

- Symbol: `AZ34063UMTR-G1`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `az34063umtr-g1-etched.step` / `az34063umtr-g1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `az34063umtr-g1.step` / `az34063umtr-g1.glb` are the bare package body.

## 3D model downloads

Two STEP files. Same geometry, different body top:

| File | Size | Use it when |
|---|---|---|
| [`az34063umtr-g1.step`](az34063umtr-g1.step) | 122 KB | You want the bare part, or you mark your own boards. |
| [`az34063umtr-g1-etched.step`](az34063umtr-g1-etched.step) | 2.7 MB | You want the part with `AZ34063UMTR-G1` already on it. |

The marking in the etched file is real recessed geometry cut into the solid, not a
texture or a decal: 671 faces against 147 in the bare model. It
survives export, section views, and rendering in any CAD tool, and it drops straight
into KiCad or Fusion with no extra setup.

## Provenance

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

- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/AZ34063UMTR-G1.pdf) (13 pp, sha256 `c90c041e45e9302f`, retrieved 2026-08-17, tier: manufacturer)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/az34063umtr-g1-datasheet.pdf)