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Technical Specifications
Parameters and characteristics for this part
| Specification | TPS43000PWR |
|---|---|
| Clock Sync | True |
| Control Features | Current Limit, Frequency Control, Enable |
| Duty Cycle (Max) [Max] | 100 % |
| Duty Cycle (Max) [Min] | 90 % |
| Frequency - Switching [Max] | 1 MHz |
| Frequency - Switching [Min] | 250 kHz |
| Function | Step-Up, Step-Up/Step-Down, Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 16-TSSOP |
| Package / Case [x] | 0.173 in |
| Package / Case [y] | 4.4 mm |
| Supplier Device Package | 16-TSSOP |
| Synchronous Rectifier | True |
| Topology | Buck, SEPIC, Flyback, Boost, Buck-Boost |
| Voltage - Supply (Vcc/Vdd) [Max] | 9 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 1.8 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 4.28 | |
| 10 | $ 3.85 | |||
| 25 | $ 3.64 | |||
| 100 | $ 3.15 | |||
| 250 | $ 2.99 | |||
| 500 | $ 2.85 | |||
| Digi-Reel® | 1 | $ 4.28 | ||
| 10 | $ 3.85 | |||
| 25 | $ 3.64 | |||
| 100 | $ 3.15 | |||
| 250 | $ 2.99 | |||
| 500 | $ 2.85 | |||
| Tape & Reel (TR) | 2000 | $ 2.85 | ||
Description
General part information
TPS43000 Series
The TPS43000 is a high-frequency, voltage-mode, synchronous PWM controller that can be used in buck, boost, SEPIC, or flyback topologies. This highly flexible, full-featured controller is designed to drive a pair of external MOSFETs (one N-channel and one P-channel), enabling it for use with a wide range of output voltages and power levels. With an automatic PFM mode, a shutdown current of less than 1 uA, a sleep-mode current of less than 100 uA and a full operating current of less than 2 mA at 1 MHz, it is ideal for building highly efficient, dc-to-dc converters.
The TPS43000 operates over a wide input voltage range of 1.8 V to 9.0 V. Typical power sources are distributed power systems, two to four nickel or alkaline batteries, or one to two lithium-ion cells. It can be used to generate regulated output voltages from as low as 0.8 V to 8 V or higher. It operates either in a fixed-frequency mode, where the user programs the frequency (up to 2 MHz), or in an automatic PFM mode. In the automatic mode, the controller goes to sleep when the inductor current goes discontinuous, and wakes up when the output voltage has fallen by 2%. In this hysteretic mode of operation, very high efficiency can be maintained over a very wide range of load current. The device can also be synchronized to an external clock source using the dual function SYNC/SD input pin.
The TPS43000 features a selectable two-level current-limit circuit which senses the voltage drop across the energizing MOSFET. The user can select either pulse-by-pulse current limiting or hiccup mode overcurrent protection. The TPS43000 also features a low-power (LP) mode (which reduces gate charge losses in the N-channel MOSFET at high input/output voltages), undervoltage lockout, and soft-start. The TPS43000 is available in a 16-pin TSSOP (PW) package.
Documents
Technical documentation and resources
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