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Contents

README

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TPS60503DGS

Texas Instruments · DC-DC Converters · VSSOP-10-0.5mm

TPS60503DGS from Texas Instruments, in a VSSOP-10-0.5mm. 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 EN input Device-enable input; EN high disables the device (output and input isolated in shutdown), EN low enables it.
2 PG output Open-drain power good output that goes high once OUT reaches about 97% of its nominal value; leave unconnected if unused.
3 C2F− passive Negative terminal of the flying capacitor C2F.
4 C2F+ passive Positive terminal of the flying capacitor C2F.
5 VIN power_in Supply input; connect to an input supply in the 1.8-V to 6.5-V range.
6 C1F+ passive Positive terminal of the flying capacitor C1F.
7 OUT power_out Regulated 1.5-V power output for TPS60503; bypass OUT to GND with the output filter capacitor Co.
8 C1F− passive Negative terminal of the flying capacitor C1F.
9 GND power_in Ground.
10 FB input Feedback pin; for TPS60501 to TPS60503 connect directly to VO.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-10-0.5mm
Category Power Supply Chip
Pins 10

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VIN 1.8 6.5 V 5
Tolerance of output voltage -4 4 % TPS60503, IOUT = 0 mA to 250 mA, COUT = 47 µF 5
Quiescent current (no-load input current) IQ 40 75 µA IOUT = 0 mA 5
Shutdown supply current IOUT(SD) 0.05 0.5 µA V(EN) = VIN 5
Internal switching frequency f(OSC) 600 800 1200 kHz 5
EN input low voltage VIL 0.3 V 0.3 × VIN 5
EN input high voltage VIH 0.7 V 0.7 × VIN 5
EN input leakage current Ilkg(SD) 0.01 0.1 µA V(EN) = 0 V or VIN 5
Short circuit current (start-up current) 100 300 mA VIN = 6.5 V, VOUT = 0 V 5
Power good delay time, rising td,r 100 200 µs VOUT ramping positive 5
Power good delay time, falling td,f 50 100 µs VOUT ramping negative 5
Power good output voltage low VOL 0.3 V VOUT = 0 V, I(PG) = 1 mA 5
Power good leakage current Ilkg 0.01 0.1 µA VOUT = 3.3 V, V(PG) = 3.3 V 5
Output voltage ripple at OUT Vpp 30 mVPP IOUT = 150 mA, VOUT = 1.5 V 5
Output voltage VOUT 1.5 V TPS60503, VIN > 1.8 V; VIN − VOUT > 1 V at IOUT ≤ 50 mA 5
Thermal shutdown temperature T(SD) 150 °C 5
Output current limit 500 mA VOUT > 0.6 V 5
No load start-up time 80 µs 5
Input voltage at VIN VIN 1.8 6.5 V 4
Output current at OUT IOUT 250 mA 4
Input capacitor CIN 2.2 µF 4
Flying capacitors C1F, C2F 1 µF 4
Output capacitor COUT 4.7 µF IOUT ≤ 150 mA 4
Output capacitor COUT 22 µF 150 mA < IOUT < 250 mA 4
Operating junction temperature TJ -40 125 °C 4
Voltage at VIN, EN, PG to GND -0.3 7 V 4
Voltage at OUT, FB to GND -0.3 3.6 V 4
Voltage at C1F+, C1F−, C2F+, C2F− to GND -0.3 7 V 4
Output current at OUT 300 mA 4
Maximum junction temperature TJ 150 °C 4
Storage temperature Tstg -55 150 °C 4
ESD HBM V(ESD) -2000 2000 V Human body model, ANSI/ESDA/JEDEC JS-001 4
ESD CDM V(ESD) -500 500 V Charged-device model, JESD22-C101 4
Junction-to-ambient thermal resistance RθJA 157 °C/W DGS (VSSOP) 10 pins 4
Junction-to-case (top) thermal resistance RθJC(top) 53 °C/W DGS (VSSOP) 10 pins 4
Junction-to-board thermal resistance RθJB 76 °C/W DGS (VSSOP) 10 pins 4
Junction-to-top characterization parameter ψJT 5.5 °C/W DGS (VSSOP) 10 pins 4
Junction-to-board characterization parameter ψJB 75 °C/W DGS (VSSOP) 10 pins 4

CAD (KiCad official)

  • Symbol: TPS60503DGS
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
  • 3D model files: tps60503dgs-etched.step / tps60503dgs-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps60503dgs.step / tps60503dgs.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (32 pp, sha256 1f029955b1a7942c, retrieved 2026-10-22, 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