TPS61023DRLR

Part: TPS61023 from Texas Instruments

Type: Synchronous Boost Converter

Description: The TPS61023 is a synchronous boost converter with a 0.5 V to 5.5 V input voltage range, 3.7-A valley switching current limit, and up to 94% efficiency, designed for portable equipment and smart devices.

Operating Conditions:

• Supply voltage: 0.5 V to 5.5 V
• Operating temperature: -40 to 125 °C (junction)
• Output voltage setting range: 2.2 V to 5.5 V
• Switching frequency: 1 MHz (VIN > 1.5 V), 0.5 MHz (VIN < 1 V)

Absolute Maximum Ratings:

• Max supply voltage: 7 V (VIN, EN, FB, SW, VOUT terminals)
• Max continuous current: 3.7 A (Valley switching current limit)
• Max junction/storage temperature: 150 °C

Key Specs:

• Input voltage range: 0.5 V to 5.5 V
• Output voltage setting range: 2.2 V to 5.5 V
• Valley current limit: 3.7 A (typ) at VIN = 3.6 V, VOUT = 5.0 V
• High-side MOSFET on resistance: 68 mΩ (typ) at VOUT = 5.0 V
• Low-side MOSFET on resistance: 47 mΩ (typ) at VOUT = 5.0 V
• Switching frequency: 1 MHz (typ) at VIN = 3.6 V, VOUT = 5.0 V, PWM mode
• Quiescent current into VIN pin: 0.9 μA (typ) at IC enabled, No load, No switching
• Shutdown current into VIN and SW pin: 0.1 μA (typ) at IC disabled, VIN = VSW = 3.6 V, TJ = 25°C

Features:

• 1.8-V Minimum input voltage for start-up
• Two 47-mΩ (LS) / 68-mΩ (HS) MOSFETs
• 94% Efficiency at VIN = 3.6 V, VOUT = 5 V and IOUT = 1.5 A
• ±2.5% Reference voltage accuracy over -40°C to +125°C
• Auto PFM operation mode at light load
• True disconnection between input and output during shutdown
• Output overvoltage and thermal shutdown protections
• Output short-circuit protection

Applications:

• Electronic shelf label
• Video doorbell
• Remote controller

Package:

• SOT563 (DRL) 6-pin (1.2-mm × 1.6-mm)

• Input voltage range: 0.5 V to 5.5 V
• 1.8-V Minimum input voltage for start-up
• Output voltage setting range: 2.2 V to 5.5 V
• Two 47-mΩ (LS) / 68-mΩ (HS) MOSFETs
• 3.7-A Valley switching current limit
• 94% Efficiency at VIN = 3.6 V, VOUT = 5 V and IOUT = 1.5 A
• 1-MHz Switching frequency when VIN > 1.5 V and 0.5-MHz switching frequency when VIN < 1 V
• Typical 0.1-μA shutdown current from VIN and SW
• ±2.5% Reference voltage accuracy over -40°C to +125°C
• Auto PFM operation mode at light load
• Pass-through mode when VIN > VOUT
• True disconnection between input and output during shutdown
• Output overvoltage and thermal shutdown protections
• Output short-circuit protection
• 1.2-mm × 1.6-mm SOT563 (DRL) 6-pin package

• Electronic shelf label
• Video doorbell
• Remote controller

• FB

• VOUT

• EN

• VIN

• SW

• GND

Figure 5-1. DRL Package 6-Pin SOT563 Top View

TJ = -40°C to 125°C, VIN = 3.6 V and VOUT = 5.0 V. Typical values are at T J = 25°C (unless otherwise noted)

over operating free-air temperature range (unless otherwise noted) (1)

over operating free-air temperature range (unless otherwise noted)

The TPS61023 is a synchronous boost converter designed to operate from an input voltage supply range between 0.5 V and 5.5 V with a typically 3.7-A valley switch current limit. The TPS61023 typically operates at a quasi-constant 1-MHz frequency PWM at moderate-to-heavy load currents when the input voltage is above 1.5 V. The switching frequency changes to 0.5 MHz gradually with the input voltage changing from 1.5 V to 1 V for better efficiency and high step-up ratio. When the input voltage is below 1 V, the switching frequency is fixed at a quasi-constant 0.5 MHz. At light load currents, the TPS61023 converter operates in power-save mode with PFM to achieve high efficiency over the entire load current range.