| Vin (Min) (V) | 1.8 |
| Vin (Max) (V) | 5.5 |
| Vout (Min) (V) | 2.2 |
| Vout (Max) (V) | 5.5 |
| Switch current limit (Typ) (A) | 5.88 |
| Regulated outputs (#) | 1 |
| Switching frequency (Min) (kHz) | 2000 |
| Switching frequency (Max) (kHz) | 2800 |
| Iq (Typ) (mA) | 0.018 |
| Features | Bypass Mode Pass-through Mode, Enable, Forced PWM, Frequency Synchronization, Light Load Efficiency, Load Disconnect, Output Discharge, Power Good, Spread Spectrum, UVLO Fixed |
| Duty cycle (Max) (%) | 90 |
| Rating | Catalog |
- Input voltage range: 1.8V to 5.5 V
- Output voltage range: 2.2 V to 5.5 V
- When FB connect to VIN output voltage fixed 5.0 V
- Two valley switching current limit options
- TPS61033: 5.5-A typical
- TPS610331: 1.65-A typical
- High efficiency and power capability
- Two 25-mΩ (LS) / 46-mΩ (HS) MOSFETs
- Support up to 2.4 MHz with small L-C
- Up to 93.60% efficiency at VIN = 3.3 V, VOUT = 5 V, and IOUT = 1 A
- Up to 90.62% efficiency at VIN = 3.3 V, VOUT = 5 V, and IOUT = 2 A
- Extend the system operating time
- Typical 20-μA quiescent current into VIN pin
- Typical 4.7μA quiescent current into VOUT pin
- Typical 0.1-μA shutdown current
- ±1.5% Reference voltage accuracy over –40°C to +125°C
- Power good output with window comparator
- Pin-selectable auto PFM or forced PWM mode at light load
- Spread spectrum frequency modulation
- Pass-through mode when VIN > VOUT
- Safety and robust operation features
- True disconnection between input and output during shutdown
- Output overvoltage and thermal shutdown protections
- Output short-circuit protection
- 2.1-mm × 1.6-mm SOT583 8-Pin package
The TPS61033 is a synchronous boost converter. The device provides a power supply solution for portable equipment and smart devices powered by various batteries and other power supply. The TPS61033 has 5.5-A (typical) valley switch current limit and TPS610331 has 1.65-A (typical) valley switch current limit over full temperature range.
The TPS61033 uses adaptive constant on-time valley-current-control topology to regulate the output voltage and operates at 2.4-MHz switching frequency. There are two optional modes at light load by configuring the MODE pin: auto PFM mode and forced PWM to balance the efficiency and noise immunity in light load. The TPS61033 consumes a 20-μA quiescent current from VIN at light load condition. During shutdown, the TPS61033 is completely disconnected from the input power and only consumes a 0.1-μA current to achieve long battery life. The TPS61033 has 5.75-V output overvoltage protection, output short circuit protection, and thermal shutdown protection.
The TPS61033 offers a very small solution size with 2.1-mm × 1.6-mm SOT583 package and minimum amount of external components.
