Specifications
| Type | Description |
|---|---|
| Part Number | LP5520 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | 25-pin DSBGA (YZR), 2.787 mm x 2.621 mm max body size |
| LED Output Channels | 3 independent current sink outputs; ROUT, GOUT, BOUT for red, green, and blue LEDs |
| LED Output Current Matching | 0.2% typ; typical LED output current matching |
| Color Accuracy | Delta X and Delta Y <= 0.003; RGB color calibration |
| ADC Resolution | 12-bit; measurement of 2 sensors |
| Boost Converter Output Voltage Range | 5 V to 20 V; programmable output voltage in 1-V steps |
| Shutdown Current | <2 uA typ; shutdown mode |
| Input Supply Voltage | 2.9 V to 5.5 V; typical application supply range |
| Absolute Maximum Voltage on SW, FB, ROUT, GOUT, BOUT | -0.3 V to 22 V; over operating free-air temperature range |
| Absolute Maximum Voltage on VDDA, VDDD, VDDIO, VLDO | -0.3 V to 6 V; over operating free-air temperature range |
| Absolute Maximum Logic Pin Voltage | -0.3 V to VDDIO + 0.3 V, 6 V max; logic pins |
| Maximum Junction Temperature | 125 C; absolute maximum rating, TJ-MAX |
| Storage Temperature Range | -65 C to 150 C; absolute maximum rating, Tstg |
| Thermal Shutdown Engage Temperature | 160 C typ; internal thermal shutdown circuitry |
| Thermal Shutdown Disengage Temperature | 140 C typ; internal thermal shutdown circuitry |
| HBM ESD Rating | +/-2000 V; ANSI/ESDA/JEDEC JS-001 |
| CDM ESD Rating | +/-200 V; JEDEC JESD22-C101 |
| Recommended Voltage on SW, FB, ROUT, GOUT, BOUT | 0 V to 21 V; recommended operating conditions |
| Recommended VDDA, VDDD Supply Voltage | 2.9 V to 5.5 V; recommended operating conditions |
| Recommended VDDIO Supply Voltage | 1.65 V to VDDA; recommended operating conditions |
| Recommended Load Current per Driver | 0 mA to 60 mA; ROUT, GOUT, BOUT |
| Operating Junction Temperature | -30 C to 125 C; recommended operating conditions |
| Operating Ambient Temperature | -30 C to 85 C; recommended operating conditions |
| Junction-to-Ambient Thermal Resistance | 58.2 C/W; YZR DSBGA, 25 pins |
| Junction-to-Case Top Thermal Resistance | 0.3 C/W; YZR DSBGA, 25 pins |
| Junction-to-Board Thermal Resistance | 7.9 C/W; YZR DSBGA, 25 pins |
| Junction-to-Top Characterization Parameter | 0.5 C/W; YZR DSBGA, 25 pins |
| Junction-to-Board Characterization Parameter | 7.9 C/W; YZR DSBGA, 25 pins |
| Standby Supply Current | 1.7 uA typ, 7 uA max; VDDA + VDDD, NSTBY=L, VDDIO >= 1.65 V |
| Standby Supply Current | 1 uA typ; VDDA + VDDD, NSTBY=L, VDDIO=0 V |
| No-Boost Supply Current | 0.9 mA typ; VDDA + VDDD, NSTBY=H, EN_BOOST=L |
| No-Load Supply Current | 1.4 mA typ; VDDA + VDDD, NSTBY=H, EN_BOOST=H, AUTOLOAD=L |
| VDDIO Standby Supply Current | 1 uA typ; NSTBY=L |
| Internal LDO Output Voltage | 2.77 V min, 2.80 V typ, 2.84 V max; VIN >= 2.9 V, TJ=25 C |
| Internal LDO Output Current | 1 mA max; current to external load |
| ROUT/GOUT/BOUT Leakage Current | 0.1 uA typ, 1 uA max; ROUT, GOUT, BOUT pin leakage current |
| Maximum Sink Current | 60 mA; outputs ROUT, GOUT, BOUT control=255 (FFh) |
| Output Current Accuracy at 20 mA | 19 mA min, 20 mA typ, 21 mA max; -5% to +5%; output current set to 20 mA |
| Output Current Accuracy at 60 mA | 54 mA min, 60 mA typ, 66 mA max; -10% to +10%; output current set to 60 mA |
| RGB Current Matching | +/-0.2% typ, +/-2% max; between ROUT, GOUT, BOUT at 20 mA current |
| PWM Cycle Time | 820 us typ; accuracy proportional to internal clock frequency |
| RGB Switching Frequency | 1.22 kHz; pwm_fast=0 |
| RGB Switching Frequency | 19.52 kHz; pwm_fast=1 |
| Saturation Voltage | 550 mV typ; ILED=60 mA; LED current dropped 10% from value measured at 2 V |
| External PWM Maximum Frequency | 1 MHz; ILED=60 mA, TJ=25 C |
| Datasheet Status | request_only |
Product Overview
The LP5520 is a Texas Instruments Power_Management IC for RGB backlight LED driving. It integrates three independent current sink outputs, ROUT, GOUT, and BOUT, for red, green, and blue LED channels. Each driver supports a recommended load current range from 0 mA to 60 mA, with maximum sink current specified at 60 mA when the output control code is 255.
The device operates from 2.9 V to 5.5 V on VDDA and VDDD, while VDDIO is specified from 1.65 V to VDDA. Its boost converter output is programmable from 5 V to 20 V in 1-V steps, supporting LED strings that need a higher rail than the input supply. RGB color calibration is specified with Delta X and Delta Y less than or equal to 0.003, and typical LED output current matching is 0.2%.
Packaging is a 25-pin DSBGA (YZR) with 2.787 mm x 2.621 mm maximum body size. The recommended operating junction temperature range is -30 C to 125 C, with -30 C to 85 C ambient operation. Thermal data includes 58.2 C/W junction-to-ambient resistance for the YZR package.
Key Features
- Three independent RGB current sink outputs
- ROUT, GOUT, and BOUT LED channel control
- 0 mA to 60 mA recommended driver current
- 60 mA maximum sink current per output
- 0.2% typical LED output current matching
- Delta X and Delta Y <= 0.003 calibration
- 12-bit ADC for two sensor measurements
- 5 V to 20 V programmable boost output
- 2.9 V to 5.5 V supply operation
- 1.22 kHz or 19.52 kHz RGB switching
- Internal LDO output rated 2.80 V typical
- Thermal shutdown engages at 160 C typical
Typical Applications
- RGB backlight modules
- Red green blue LED control
- Color-calibrated display lighting
- 2.9 V to 5.5 V systems
- Sensor-measured LED backlighting
- PWM-controlled RGB lighting
- Boosted LED drive rails
Procurement Notes
When requesting a quote for LP5520, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
How many LED outputs does the LP5520 provide?
The LP5520 provides three independent current sink outputs named ROUT, GOUT, and BOUT. These outputs are intended for red, green, and blue LED channels and support a recommended load current range of 0 mA to 60 mA per driver.
What supply voltage range is recommended for LP5520 operation?
The recommended VDDA and VDDD supply voltage range is 2.9 V to 5.5 V. VDDIO is specified from 1.65 V to VDDA, supporting a separate logic interface voltage within that operating range.
What boost output voltage range does the LP5520 support?
The integrated boost converter output voltage is programmable from 5 V to 20 V in 1-V steps. The recommended voltage range on SW, FB, ROUT, GOUT, and BOUT is 0 V to 21 V.
What package is specified for the LP5520?
The LP5520 is specified in a 25-pin DSBGA package with YZR package code. The maximum body size is 2.787 mm x 2.621 mm, and the listed junction-to-ambient thermal resistance is 58.2 C/W.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 25, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.