TPS62691
TPS62691 is 4-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER manufactured by Texas Instruments.
- Part of the TPS62690 comparator family.
- Part of the TPS62690 comparator family.
FEATURES
- 2 95% Efficiency at 4MHz Operation
- 19μA Quiescent Current
- 4MHz Regulated Frequency Operation
- High Duty-Cycle Operation
- ±2% Total DC Voltage Accuracy
- Best in Class Load and Line Transient
- Excellent AC Load Regulation
- Low Ripple Light-Load PFM Mode
- ≥40d B VIN PSRR (1k Hz to 10k Hz)
- Internal Soft Start, 250-μs Start-Up Time
- Integrated Active Power-Down Sequencing
(Optional)
- Current Overload and Thermal Shutdown
Protection
- Three Surface-Mount External ponents
Required (One 2012 MLCC Inductor, Two 0402 Ceramic Capacitors)
- plete Sub 1-mm ponent Profile Solution
- Total Solution Size <12 mm2
- Available in a 6-Pin Nano Free™ (CSP)
Efficiency
- % Power Loss
- m W
100 VI = 3.6 V,
95 VO = 2.85 V
90 Efficiency
85 PFM/PWM Operation
75 Power Loss
70 PFM/PWM Operation
50 0.1
1 10 100 IO
- Load Current
- m A
150 135 120 105 90 75 60 45 30 15 0 1000
Figure 1. Efficiency vs. Load...
