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參數資料
| 型號： | LEN-1.8/28-D12H |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 0.25 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | EIGTH BRICK PACKAGE-10 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 1008K |
| 代理商： | LEN-1.8/28-D12H |
+INPUT
(5)
COMMON
(1)
2-PHASE
PWM
CONTROLLER
CURRENT
SENSE
REFERENCE &
ERROR AMP
VCC
ON/OFF
CONTROL
(4)
VOUT
TRIM
(2)
+OUTPUT
(7,9)
+SENSE
(10)
COMMON
(6, 8)
Single Output
LEN D12 Models
Non Isolated, 12VIN, 0.8-5VOUT
28 Amp DC/DC Converters
Figure 1. Simplied Schematic
DATEL, Inc., Manseld, MA 02048 (USA) Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 Email: sales@datel.com Internet: www.datel.com
The LEN D12 Series of non-isolated eighth bricks are ideal building blocks for
emerging, on-board power-distribution schemes in which isolated 12V buses deliver
power to any number of non-isolated, step-down buck regulators. LEN D12 DC/DC's
accept a 12V input (10.2V to 13.8V input range) and convert it, with the highest
efciency in the smallest space, to a 0.8, 1, 1.2, 1.5, 1.8, 2, 2.5, or 3.3 Volt output
fully rated at 28 Amps, or 5 Volt output at 25 Amps.
LEN D12's are ideal POLPP's (point-of-use/load power processors) and they
typically require no external components. They occupy the standard eighth-brick
board space (0.9" x 2.3") and come in either through-hole packages or surface-
mount packages with a prole of only 0.46" (0.5" including optional heat sink).
The LEN's best-in-class power density is achieved with a fully synchronous,
xed-frequency, 2-phase buck topology that delivers extremely high efciency (95%
for 5VOUT models), low noise (25mVp-p typ.), tight line/load regulation (±0.25%
max.), quick step response (150sec), stable no-load operation, and no output
reverse conduction.
The fully functional LEN's feature input over/undervoltage lockout, output over-
voltage and overcurrent detection, continuous short-circuit protection, overtempera-
ture protection, an output-voltage trim function, a remote on/off control pin, and a
sense pin. High efciency enables the LEN D12's to deliver rated output currents of
25 Amps at ambient temperatures to +65°C with 200 lfm air ow without heat sink.
If your new system boards call for multiple supply voltages, check out the
economics of on-board 12V distributed power. If you don't need to pay for multiple
isolation barriers, DATEL's non-isolated and 1/8 brick's will save you money.
Only one phase of two shown.
Features
■
Eighth brick, through hole or SMT
2-phase buck regulators for new
distributed 12V power architectures
12V input (10.2-13.8V range)
0.8-2.5VOUT, 3.3VOUT @ 28A, 5VOUT @ 25A
Non-isolated, xed-frequency,
synchronous-rectier topology
Efciencies to 95% @ 25 Amps
Noise as low as 25mVp-p
Stable no-load operation
On/Off control, trim & sense functions
Output Overvoltage Protection
Input Over/Undervoltage lockout
Thermal shutdown
Designed to meet UL/EN/IEC60950
EMC compliant
A SUBSIDIARY OF C&D TECHNOLOGIES
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LEN-2.5/28-D12 | 功能描述:DC/DC轉換器 70W 12V to 2.5V 28A RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| LEN-2.5/28-D12B-C | 功能描述:DC/DC轉換器 70W 12V to 2.5V 28A RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| LEN-2.5/28-D12-C | 功能描述:DC/DC轉換器 70W 12V to 2.5V 28A RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| LEN-2.5/28-D12H-C | 功能描述:DC/DC轉換器 70W 12V to 2.5V 28A HEAT SINK RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| LEN-2.5/28-D12M | 制造商:Murata Power Solutions 功能描述:Module DC-DC 1-OUT 2.5V 28A 10-Pin 1/8-Brick |
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