RF6280 Power Management IC
The RF6280 is a multi-functional Power Management Unit which is used in conjunction with power amplifiers and designed to be used in 3V handheld systems. The RF6280 consists of a DC-DC converter three 2.85V LDOs and a bias control circuit to adjust the PA bias. The DC-DC Converter is a buck converter that provides high efficiency over a wide output voltage range with minimal ripple. It has a fast response to load and line transients and fast response to program (VSET) voltage changes. The converter includes an auto-bypass function which allows the handset to operate at lower battery voltage while helping maintain PA linearity at maximum output power. The converter output voltage is set by a variable control voltage VSET. The RF6280 has three individual LDOs which are enabled by a digital two bit logic signal. The three LDO outputs are used for band select in tri-band WCDMA handsets.
技术特性 Features
- Peak Efficiency Up To 96%
- High Efficiency Over Various Loads
- Transient Response <10
- 650mA Current Capability
- Variable Output Voltage (0V to VBATT)
- 2.5MHz PWM Switching Frequency
- Automatic Bypass Mode
- Over Temperature Shutdown
- Current Limit
- Analog Bias Control (Automatic and Buffer)
- Three Individual Fast Transient 2.85V LDOs
- Controls up to 3 UMTS PAs
- Small Wafer-Level Chip-Scale Package
产品实物图
订购信息 Ordering Information
- RF6280 Power Management IC
- RF6280PCBA-41X Fully Assembled Evaluation Board
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技术指标
| Frequency (MHz): |
2.5 (Switching) |
| ISUPPLY (mA): |
650 |
| VSUPPLY (V): |
3.7 |
| Efficiency (%): |
96 |
| Package: |
15-Bump WLCSP (4 x 4 array), 2 x 2 |
应用领域 Applications
- 3V W-CDMA Handsets
- Multi-Mode W-CDMA 3G Handsets
- TDSCDMA Handset(2010MHz to 2025MHz)(1880MHz to 1920MHz)
- Spread-Spectrum Systems
- PCMCIA Cards
功能框图 Functional Block Diagram
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订购信息 Ordering Information
| 订购型号 |
MOQ* |
INC* |
Packaging and Shipping Details |
QTY |
Per 1 EA |
| RF6280 |
25 EA |
25 EA |
Standard 25 Piece Bag Shipping From Greensboro |
1+ |
$2.52 |
| RF6280SR |
100 EA |
100 EA |
Standard 100 Piece 7" Short Reel Shipping From Greensboro |
100+ |
$1.76 |
| RF6280TR7 |
2500 EA |
2500 EA |
Standard 2500 Piece 7" Reel Shipping From Greensboro |
750+ |
$1.22 |
| RF6280TR13 |
5000 EA |
5000 EA |
Standard 5000 Piece 13" Reel Shipping From HSIN-CHU HSIEN, TAIWAN, R |
|
|
| RF6280PCK-411 |
1 EA |
1 EA |
Standard 1 Shipping From Greensboro |
1+ |
$150.00 |
