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參數(shù)資料
| 型號： | TPS5103DB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | MULTIPLE MODE SYNCHRONOUS DC/DC CONTROLLER |
| 中文描述： | 多模同步DC / DC控制器 |
| 文件頁數(shù)： | 5/37頁 |
| 文件大?。?/td> | 1052K |
| 代理商： | TPS5103DB |
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TPS5103
MULTIPLE MODE SYNCHRONOUS DC/DC CONTROLLER
SLVS240 – SEPTEMBER 1999
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description (continued)
softstart
SOFTSTART sets the sequencing of the output for any possibility. The capacitor value for a start-up time can
be calculated by the following equation: C = 2xT (uF) where C is the external capacitor value, T is the required
start-up time in (ms).
standby
This controller can be switched into standby mode by grounding the STBY terminal. When it is in standby mode,
the quiescent current is less than 1.0 uA.
UVLO
The under-voltage-lock-out (ULVO) threshold is approximately 3.8 V. The typical hysteresis is 55 mV.
5-V Switch
5-V Switch if the internal 5-V switch senses a 5-V input from REG5V terminal, the internal 5-V linear regulator
will be disconnected from the MOSFET drivers. The external 5 V will be used for both the low-side driver and
the high-side bootstrap, thus increasing the efficiency.
PWM/SKIP switch
The PWM/SKIP switch selects the output operating mode. This controller has three operational modes, PWM,
SKIP, and Hysteretic. The PWM and SKIP mode control should be used for slower transient applications.
oscillator
The oscillator gives a triangle wave by connecting an external resistor to the R
T
terminal and an external
capacitor to the C
T
terminal. The voltage amplitude is 0.43 V ~ 1.17 V. This wave is connected to the non-
inverting input of the PWM comparator.
Comparison Table Between PWM Mode and Hysteretic Mode
MODE
PWM
HYSTERETIC
Frequency
Fixed
Not Fixed
Transient Response
Normal
Very fast
Feed back compensation
Need
Needless
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| TPS5103EVM-136 | 功能描述:電源管理IC開發(fā)工具 PWM/Hysteretic Buck Contr RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS5103IDB | 功能描述:DC/DC 開關(guān)控制器 Synch BuckController RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS5103IDBG4 | 功能描述:DC/DC 開關(guān)控制器 Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS5103IDBR | 功能描述:DC/DC 開關(guān)控制器 Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TPS5103IDBRG4 | 功能描述:DC/DC 開關(guān)控制器 Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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