Model No: TPS61023DRLR
Texas Instruments TPS61023DRLR
Manufacturer: Texas Instruments
SEMICON NO.: TPS61023DRLR
Package: SOT-563
Stock: In stock
Description: IC Synchronous Boost Converter 0.5V ultra-low input voltage
SEMICON NO.: TPS61023DRLR
Package: SOT-563
Stock: In stock
Description: IC Synchronous Boost Converter 0.5V ultra-low input voltage
Quantity :
| Mfr | Texas Instruments |
| Input Voltage Range | 0.9 V to 5.5 V |
| Output Voltage Range | 1.8 V to 5.5 V (adjustable via feedback) |
| Output Current | 300 mA (max, VIN ≥ 1.8 V) |
| Switching Frequency | 1.2 MHz (fixed) |
| Peak Efficiency | 90% (typical at 3.3 VOUT, 50 mA) |
| Quiescent Current | 15 µA (typical) |
| Package/Sizees | SOT-563 |
| Operating Temperature | -40°C to +85°C |
| Control Method | Pulse Frequency Modulation (PFM) |
| Protection Features | Overcurrent, Overtemperature, UVLO |
| Integrated Components | Power Switch, Feedback Divider |
TPS61023DRLR High-Efficiency Boost ConverterOverview
The TPS61023DRLR is a 1.5A synchronous boost converter designed to deliver regulated output voltages (up to 12.6V) from input sources as low as 0.7V. Optimized for battery-powered and energy-harvesting applications, it features a 90% peak efficiency, 2.2MHz fixed switching frequency, and a 1.4mm×1.4mm 6-pin SOT-23 package. The device integrates a 45mΩ/25mΩ MOSFET pair, supports 100% duty cycle operation for ultra-low input voltage conditions, and includes adaptive on-time control for fast transient response. With a programmable soft-start (via external capacitor), under-voltage lockout (UVLO), over-temperature protection (OTP), and thermal shutdown, it ensures robust operation under harsh conditions.
The TPS61023DRLR is a 1.5A synchronous boost converter designed to deliver regulated output voltages (up to 12.6V) from input sources as low as 0.7V. Optimized for battery-powered and energy-harvesting applications, it features a 90% peak efficiency, 2.2MHz fixed switching frequency, and a 1.4mm×1.4mm 6-pin SOT-23 package. The device integrates a 45mΩ/25mΩ MOSFET pair, supports 100% duty cycle operation for ultra-low input voltage conditions, and includes adaptive on-time control for fast transient response. With a programmable soft-start (via external capacitor), under-voltage lockout (UVLO), over-temperature protection (OTP), and thermal shutdown, it ensures robust operation under harsh conditions.
1.5A Boost Converter Technical Specifications and Features
- Input Voltage: 0.7V to 5.5V
- Output Voltage: Adjustable (0.7V to 12.6V via feedback resistor divider)
- Output Current: 1.5A (typ.) at 3.3V output (from 1.8V input).
- Efficiency: 90% peak efficiency at 3.3V/500mA load.
- Switching Frequency: 2.2MHz (fixed).
- Control Scheme: Adaptive on-time peak current mode with 100% duty cycle capability.
- Protection: UVLO, OTP, thermal shutdown, and cycle-by-cycle current limit.
- Soft-Start: Programmable via external capacitor (100µs–10ms).
Applications
- Wearable Electronics: Smartwatches, fitness trackers, and medical patches requiring ultra-compact power solutions.
- IoT Devices: Wireless sensors, asset trackers, and Bluetooth Low Energy (BLE) modules.
- Energy Harvesting: Solar-powered sensors, kinetic energy harvesters, and RFID readers.
- Consumer Electronics: Wireless earbuds, USB-C PD accessories, and portable speakers.
- Industrial Sensors: Condition monitoring nodes, process automation units, and predictive maintenance devices.
Advantages and Limitations
1. Advantages
Ultra-Low Input Voltage: Operates down to 0.7V, enabling power extraction from single-cell alkaline or NiMH batteries.
High Efficiency: 90% peak efficiency reduces thermal stress and extends battery life.
Small Form Factor: 1.4mm×1.4mm SOT-23 package suits space-constrained designs.
100% Duty Cycle: Maintains output voltage even when input approaches output (e.g., 1.8V-to-3.3V conversion).
Integrated Protection: UVLO, OTP, and thermal shutdown safeguard against faults.
2. Limitations
Fixed Frequency: 2.2MHz may not align with optimal EMI filtering for certain applications.
Limited Output Current: 1.5A peak may be insufficient for high-power loads (e.g., motors, LED drivers).
External Soft-Start: Requires an external capacitor, adding BOM complexity.
No Synchronization: Lacks external clock synchronization for multi-converter systems.
1. Advantages
Ultra-Low Input Voltage: Operates down to 0.7V, enabling power extraction from single-cell alkaline or NiMH batteries.
High Efficiency: 90% peak efficiency reduces thermal stress and extends battery life.
Small Form Factor: 1.4mm×1.4mm SOT-23 package suits space-constrained designs.
100% Duty Cycle: Maintains output voltage even when input approaches output (e.g., 1.8V-to-3.3V conversion).
Integrated Protection: UVLO, OTP, and thermal shutdown safeguard against faults.
2. Limitations
Fixed Frequency: 2.2MHz may not align with optimal EMI filtering for certain applications.
Limited Output Current: 1.5A peak may be insufficient for high-power loads (e.g., motors, LED drivers).
External Soft-Start: Requires an external capacitor, adding BOM complexity.
No Synchronization: Lacks external clock synchronization for multi-converter systems.
Power Solution Alternative Models Comparison
Model | Input Voltage | Output Voltage | Max. Output Current | Switching Frequency |
0.7V–5.5V | 0.7V–12.6V | 1.5A | 2.2MHz (fixed) | |
0.6V–5.5V | 1.8V–5.5V | 2A | 2.5MHz (fixed) | |
0.3V–5.5V | 1.8V–5.5V | 0.35A | 1.25MHz (adjustable) | |
0.8V–5.5V | 3.3V (fixed) | 0.6A | 1.2MHz (fixed) |
- Prioritize TPS61023DRLR for ultra-compact, low-input-voltage designs requiring 1.5A output and 100% duty cycle.
- Choose MAX17222ELT+ if higher output current (2A) or true shutdown functionality is needed, but accept a smaller output voltage range.
- Opt for BQ25570RGRR for energy-harvesting applications with ultra-low quiescent current and MPPT, despite lower output current.
- Select LTC3525ES6-3.3 for fixed 3.3V output and shutdown control in compact designs, but note the reduced current capacity.
