The TPS629211-Q1EVM is designed to help user easily evaluate the performance of TPS629211-Q1. The user’s guide includes the following:
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The TPS629211-Q1 is high efficiency and highly flexible synchronous step-down buck converter in a small 1.6-mm × 2.1-mm SOT583 package. The TPS629211-Q1 can be configured to run 2.5 MHz or 1 MHz in either forced PWM mode or auto PFM/PWM mode. In 2.5-MHz auto PFM/PWM mode, TI AEE mode automatically adjusts the switching frequency based on both input and output voltage to hold a high efficiency through the whole operation range without the need of using different inductors. The device includes a MODE/S-CONF input to select different combinations of the following:
The TPS629211-Q1EVM(BSR131-004) uses a 1-A TPS629211-Q1 to produce 3.3-V output from 6-V input.
Table 2-1 provides a summary of TPS629211-Q1EVM performance specifications. All the specifications are given at an ambient temperature of 25°C.
| Specification | Test Conditions | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| Input voltage | 5 | 6 | 10 | V | |
| Output voltage | 3.3 | V | |||
| Output current | 0 | 1 | A | ||
| Input current | VIN = 6 V, VOUT = 3.3 V, IOUT = 0 A, Forced PWM, 2.5 MHz, 2.2-μH inductor | 5.02 | mA | ||
| VIN = 6 V, VOUT = 3.3 V, IOUT = 1 A, Forced PWM, 2.5 MHz, 2.2-μH inductor | 0.595 | A | |||
| Switching frequency | Set by Mode/S-CONF pin | 2.5 | MHz | ||
| Line regulation | VIN = 5 V–10 V, VOUT= 3.3 V, IOUT = 1 A, Forced PWM, 2.5 MHz, 2.2-μH inductor | ±0.1% | |||
| Load regulation | VIN = 6 V, VOUT = 3.3 V, IOUT = 0 A–1 A, Forced PWM and Auto PFM/PWM with AEE, 2.5 MHz, 2.2-μH inductor | ±0.15% | |||
| Output ripple | VIN = 6 V, VOUT = 3.3 V, IOUT = 1 A, Forced PWM, 2.5 MHz, 2.2-μH inductor | 10.2 | mV | ||
| Peak efficiency | VIN = 6 V, VOUT = 3.3 V, IOUT = 0 A–1 A, Forced PWM, 2.5 MHz, 2.2-μH inductor | 91.5% | |||
| VIN = 6 V, VOUT = 3.3 V, IOUT = 0 A–1 A, Auto PFM/PWM with AEE, 2.5 MHz, 2.2-μH inductor | 91.09% | ||||
| VIN = 6 V, VOUT = 3.3 V,IOUT = 10 mA, Auto PFM/PWM with AEE, 2.5 MHz, 2.2-μH inductor | 83.9% | ||||
| Output rise time | VIN = 6 V, VOUT = 3.3 V, IOUT = 1 A, Forced PWM, 2.5 MHz, 2.2-μH inductor | 500 | μs | ||
| Load transient | VIN = 6 V, VOUT = 3.3 V, IOUT = 0.5 A–1 A, Slew rate: 1 A/us, Forced PWM, VSET, 2.5 MHz, 2.2-μH inductor | ±43.5 | mV | ||
| Loop bandwidth | VIN = 6 V, VOUT = 3.3 V, IOUT = 1 A, Forced PWM, VSET, 2.5 MHz, 2.2-μH inductor | 163 | kHz | ||
| Phase margin | VIN = 6 V, VOUT = 3.3 V, IOUT = 1 A, Forced PWM, VSET, 2.5 MHz, 2.2-μH inductor | 83.2 | deg | ||
| IC case temperature | VIN = 6 V, VOUT = 3.3 V, IOUT = 1 A, Forced PWM, 2.5 MHz, 2.2-μH inductor, 10 minutes soaking | 36.4 | °C |