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參數(shù)資料
| 型號： | ST1S03PM |
| 廠商： | 意法半導體 |
| 英文描述： | 1.5A, 1.5 MHZ ADJUSTABLE, STEP-DOWN SWITCHING REGULATOR IN DFN6 |
| 中文描述： | 1.5A的，1.5兆赫可調(diào)，降壓型開關穩(wěn)壓器中的DFN6 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 538K |
| 代理商： | ST1S03PM |
1/11
March 2005
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STEP-DOWN CURRENT MODE PWM
(1.5MHz) DC-DC CONVERTER
2% DC OUTPUT VOLTAGE TOLERANCE
INTERNAL SOFT START FOR START-UP
CURRENT LIMITIATION AND POWER ON
DELAY OF 50-100μs
TYPICAL EFFICIENCY: > 70% OVER ALL
OPERATING CONDITIONS
1.5A OUTPUT CURRENT CAPABILITY
NOT SWITCHING QUIESCENT CURRENT:
MAX 2.5mA OVER TEMPERATURE RANGE
SWITCH V
DS
: MAX 350mV @ISW=750mA
USES TINY CAPACITORS AND INDUCTORS
AVAILABLE IN DFN 3x3 EXPOSED PAD
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DESCRIPTION
The ST1S03 is a step down DC-DC converter
optimized for powering low-voltage digital core in
HDD applications and, generally, to replace the
high current linear solution when the power
dissipation may cause an high heating of the
application environment. It provides up to 1.5A
over an input voltage range of 3V to 16V. An high
switching frequency (1.5MHz) allows the use of
tiny surface-mount components: as well as the
resistor divider to set the output voltage value,
only an inductor, a schottky diode and two
capacitors are required. Besides, a low output
ripple is guaranteed by the current mode PWM
topology and by the use of low E.S.R. SMD
ceramic capacitors. The device is thermal
protected and current limited to prevent damages
due to accidental short circuit. The ST1S03 is
available in DFN6 package.
ST1S03
1.5A, 1.5 MHZ ADJUSTABLE,
STEP-DOWN SWITCHING REGULATOR IN DFN6
Figure 1: Schematic Diagram
DFN6 (3x3)
Rev. 3
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ST1S03PMR | 功能描述:直流/直流開關調(diào)節(jié)器 3 to 16V Step-Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| ST1S03PU | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.5 A, 1.5 MHz adjustable, step-down switching regulator |
| ST1S03PUR | 功能描述:直流/直流開關調(diào)節(jié)器 3-16V STEP DOWN RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| ST1S03RPM | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1.5A, 1.5 MHZ ADJUSTABLE, STEP-DOWN SWITCHING REGULATOR IN DFN6 |
| ST1S06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Synchronous rectification with inhibit, 1.5 A, 1.5 MHz fixed or adjustable, step-down switching regulator |
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