1 Features
• Operating voltage range:
– Input voltage (VIN) range: 0.5 V to 5.5 V
– 1.8-V minimum input voltage for start-up
– Logic pins compatible with 1.8 V, 3.3 V, and 5 V
• High efficiency synchronous boost converter
– Output voltage (VOUT) range: 3 V to 5.5 V
– 140-mΩ (HS) / 60-mΩ (LS) MOSFETs
– 1.6-A valley switching current limit
– 95% efficiency at VIN = 4.2 V, VOUT = 5.0 V,
IOUT = 300 mA
– Pass-through mode when VIN > VOUT setting
– True disconnection between input and output
during shutdown
• Time-cross-multiplexing (TCM) topology:
– Drives up to 12 LEDs or 4 RGB LEDs
– ¼, ⅓, ½, 1 multiplexing ratio
– Supports direct, TCM, and mix-drive modes
• 4 constant current sinks with high precision:
– 0.1-mA to 51-mA per current sink
– Device-to-device error: max ±5%
– Channel-to-channel error: max ±5%
– Ultra-low headroom voltage: 110 mV (typ.) at
25.5 mA; 210 mV (typ.) at 51 mA
– PWM phase shift configurable for each LED
• Ultra-low power consumption:
– Shutdown: ISD = 0.1 μA (typical) when EN =
Low
– Standby: ISTB = 26 μA (typical) when EN = High
and CHIP_EN = 0 (data retained)
– Active: INOR = 0.45 mA (typical) when LED
current = 25.5 mA
• Analog dimming (current gain control)
– Global 1-bit Maximum Current (MC): 25.5 mA
or 51 mA
– Individual 8-bit Dot Current (DC) setting
• PWM dimming up to audible-noise-free 24 kHz
– Individual 8-bit PWM dimming resolution
– Linear or exponential dimming curves
• Autonomous animation engine control
• Individual LED dot open/short detection
• Integrated de-ghosting function
• 1-MHz (max.) I2C interface
• –40°C to 85°C operating temperature range

2 Applications
LED animation and indication for:
• Portable and wearable electronics - earbud and
charging case, E-cigarette, smart watch
• Gaming and home entertainment - smart speaker,
RGB mouse, VR headset and controller
• Internet-of-Things (IOT) - E-tag, video doorbell
• Networkings - router, access point
• Industrial HMI - EV charger, factory automation

3 Description
The LP5813 is a synchronous boost 4 × 3 matrix RGB
LED driver with autonomous animation engine control.
The device is ideal to support battery-powered
applications with 0.5-V to 5.5-V input voltage range,
and it has ultra-low normal operation current with 0.4-
mA (typical) when illuminate LEDs.
The integrated synchronous boost converter
maintains excellent efficiency and keeps the
brightness of LEDs stable over a wide operating
voltage range. Output voltage can be selected for
different LED forward voltage from 3 V to 5.5 V with
0.1-V step. The boost converter can power not only
the LEDs driven by the device itself, but also other
loads in the system. If the boost converter need to be
bypassed, VOUT is used as the power supply input
for the LED driver blocks.
The time-cross-multiplexing (TCM) structure is
adopted, which uses 4 output pins to control 12 LED
dots individually. Both high-side scan switch and lowside
current sink are contained in one output. The
total solution size are minimized for space limited
system.
The autonomous animation engine can significantly
reduce the real-time loading of controller. Each LED
can be configured through the related registers to
realize vivid and fancy lighting effects. The device
can generate 6-MHz clock signal and use it for
synchronizing the lighting effects among multiple
devices.