component
LM53602AMPWPR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM53602AMPWPR
Texas Instruments · DC-DC Converters · HTSSOP-16-EP
LM53602AMPWPR from Texas Instruments, in a HTSSOP-16-EP. 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 | SW | output | Regulator switch node driven by internal high-side and low-side MOSFETs; connect to power inductor and directly to pin 2 at PCB. |
| 2 | SW | output | Regulator switch node driven by internal high-side and low-side MOSFETs; connect to power inductor and directly to pin 1 at PCB. |
| 3 | CBOOT | power_out | Bootstrap supply input for high-side gate drivers; connect 470-nF capacitor between this pin and SW node. |
| 4 | VCC | power_out | Internal 3.15-V regulated output for control circuits; bypass with 3.3-µF capacitor to GND; do not connect to external loads. |
| 5 | BIAS | input | Input to internal voltage regulator; connect to output voltage point with 0.1-µF bypass capacitor to GND; do not ground directly. |
| 6 | SYNC | input | Synchronization input for regulator switching frequency in range 1.9 to 2.3 MHz; connect to GND when unused; do not float. |
| 7 | FPWM | input | Mode control input for PWM/PFM operation; high forces PWM mode, low enables auto mode with transitions between PFM and PWM; do not float. |
| 8 | RESET | output | Open-drain reset output; high indicates power OK, low indicates fault or EN low; connect to external voltage supply through current-limiting resistor. |
| 9 | FB | input | Feedback input to output voltage regulator; connect to sense point for fixed options or divider tap for adjustable; nominal reference 1.0 V; do not float or ground. |
| 10 | AGND | power_in | Analog ground reference for regulator circuits; all electrical parameters measured with respect to this pin; connect to EP and PGND on PCB. |
| 11 | EN | input | Enable input to regulator; high enables operation, low disables; rising threshold 1.7 V, falling threshold 0.8 V; can connect directly to VIN; do not float. |
| 12 | VIN | power_in | Power supply input from 3.5 V to 36 V with transient capability to 42 V; bypass with high-quality capacitor to PGND; connect directly to pin 13 at PCB. |
| 13 | VIN | power_in | Power supply input from 3.5 V to 36 V with transient capability to 42 V; bypass with high-quality capacitor to PGND; connect directly to pin 12 at PCB. |
| 14 | N/C | unconnected | No connection to device. |
| 15 | PGND | power_in | Power ground to internal low-side MOSFET; connect to AGND and system ground; connect directly to pin 16 at PCB. |
| 16 | PGND | power_in | Power ground to internal low-side MOSFET; connect to AGND and system ground; connect directly to pin 15 at PCB. |
| 17 | EP | power_in | Exposed die attach paddle thermal pad; connect to ground plane for adequate heat sinking and EMI noise reduction. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-16-EP |
| Category | Power Supply Chip |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
LM53602AMPWPR - Footprint:
Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm - 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
- 3D model files:
lm53602ampwpr-etched.step/lm53602ampwpr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm53602ampwpr.step/lm53602ampwpr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
590d70f52aa0f37f, retrieved 2026-10-07, 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-4-5-20251001(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).