Three new DC-DC Converter ICs for LED lamp applications

Texas Instruments has released three new power conversion ICs. They are high-power DC/DC boost LED driver (TPS61500) and high-voltage DC/DC boost converter (TPS61175), and a step-down DC/DC converter (TPS62110). These devices can support input voltages of up to 18-V and feature smaller voltage references for improved LED circuit design. These devices are suitable for LED applications such as signage, ambient light, office light, general illumination, military, medical and sensors.

Key features and technical specifications of TPS61500 are,

1. 2.9-V to 18-V input voltage range
2. 3.0-A current switch with integrated FET
3. Four 3-W LEDs from 5 Vin
4. Eight 3-W LEDs from 12 Vin
5. 200 kHz to 2.2 MHz switching frequency
6. Brightness dimming
7. User-defined soft start
8. 93 percent efficiency
10. Package: HTSSOP package

Key features and technical specifications of TPS61175 are,

1. Wide input voltage range of 2.9-V to 18-V
2. 3.0-A/40-V integrated MOSFET
3. Wide switching frequency of 200 kHz to 2.2 MHz
4. Supports industrial applications with 12-V, 15-V bus systems or multi-cell applications
5. Package: HTSSOP package

Key features and technical specifications of TPS62110 are,

1. Adjustable input voltage: 3.1-V to 17-V
2. Adjustable output voltage: 1.2-V to 15-V
3. Maximum output current 1.5 A
4. Maximum efficiency 95 percent
5. Quiescent current: 20 uA; 2 uA in shutdown
6. Switching frequency: 1 MHz
7. Power good and low-battery detect
8. Soft start limits in-rush current
9. Package : QFN package

Availability: Now in volumes

price:
TPS61500: each $1.60 in 1K pieces

TPS61175: each $1.80 in 1K pieces

TPS62110: each $1.9 in 1K pieces