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參數(shù)資料
| 型號： | L5953 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | MULTIPLE SWITCHING VOLTAGE REGULATOR |
| 中文描述： | 多重開關(guān)穩(wěn)壓 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大小： | 217K |
| 代理商： | L5953 |
1/24
L5953
September 2003
This is preliminary information on a new product now in development. Details are subject to change without notice.
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PWM: ADJUSTABLE 2.5/10V - 1A
SWITCHING VOLTAGE REGULATOR
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EXTERNAL POWER MOS ABILITY FOR
OUTPUT CURRENT ENHANCEMENT
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SYNCHRONIZATION FUNCTION
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REG1- LINEAR LOW DROP 3.3/5V - 250mA
STBY VOLTAGE REGULATOR (LOW
CURRENT CONSUMPTION) with RESET
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REG2- LINEAR VOLTAGE REGULATOR 1.5V
to 3.3V EXTERNALLY ADJUSTABLE - 300mA
MAXIMUM CURRENT
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HSD1 : 500mA HIGH SIDE DRIVER
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HSD2 : 200mA HIGH SIDE DRIVER
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SPI INTERFACE
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SPI DIAGNOSTICS HSD1, HSD2
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DOUBLE SWITCHING FREQUENCY SPI
SELECTABLE
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DOUBLE INPUT LVW
SPI FUNCTIONS
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INPUT CONTROLS
– Turn-on/off PWM
– Turn-on/off REG2
– Turn-on/off HSD1
– Turn-on/off HSD2
– Switching frequency selection f1- f2
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OUTPUT FUNCTIONS:
– HSD1 & HSD2 short to gnd, open load and
short to battery (Test mode)
– Thermal warning
PROTECTIONS
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OVERVOLTAGE PROTECTION
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INTERNAL CURRENT LIMITING
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THERMAL SHUTDOWN
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ESD
DESCRIPTION
The L5953 is the integration of one switching regula-
tor, two linear voltage regulators, two low voltage
warnings and two high side drivers. It has a stand-by
operation mode (low current consumption) where
only the stand-by voltage regulator plus the low volt-
age warnings are active. The other regulators and
high side drivers are controlled by the SPI interface.
PowerSO36
ORDERING NUMBER: L5953
PRODUCT PREVIEW
MULTIPLE SWITCHING VOLTAGE REGULATOR
BLOCK DIAGRAM
VOLTAGE WARNING
SPI INTERFACE
REC2
LINEAR VOLTAGE
REGULATOR
1.5-3.3V/300mA
HSD1
HSD1
HSD2
HSD2
COMP
FB
GATEOUT
GATEIN
VSW
DRAINOUT
STRAP
ADJ
VSTBY
GND
SWGND
S1
W1
S2
W2
VDD-LIN
REC1
ST-BY LINEAR VOLTAGE
REGULATOR
3.3-5V/250mA
PWM
STEP DOWN
REGULATOR
2.5-10V/1A
OSCILLATOR &
SYNC
STCAP
CT
RES
VDD-SW
IRQ
Q
D
S
C
VLR
FBLR
VIN
SYNC
VSPI
DGND
FGND
D01AU1330A
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L5953_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Multiple switching voltage regulator |
| L5954 | 功能描述:低壓差穩(wěn)壓器 - LDO Airbag App Specific Voltage Regulator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| L5955 | 功能描述:多媒體雜項 Multifunction Voltage Regulator RoHS:否 制造商:Texas Instruments 類型: 通道數(shù)量: 轉(zhuǎn)換速率:540 Mbps 分辨率: 封裝 / 箱體:SOIC-16 封裝:Tube |
| L5956 | 功能描述:多媒體雜項 Multifunction Voltage Regulator RoHS:否 制造商:Texas Instruments 類型: 通道數(shù)量: 轉(zhuǎn)換速率:540 Mbps 分辨率: 封裝 / 箱體:SOIC-16 封裝:Tube |
| L5956_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Multifunction voltage regulator for car radio |
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