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參數(shù)資料
| 型號： | TCV7104FN |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3 X 3 MM, 0.65 MM PITCH, PLASTIC, SON-8 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 272K |
| 代理商： | TCV7104FN |
TCV7104FN
2010-03-23
2
Ordering Information
Part Number
Shipping
TCV7104FN (TE85L, F) Embossed tape (3000 units per reel)
Block Diagram
Pin Description
Pin No.
Symbol
Description
1
PGND
Ground pin for the output section
2
VIN1
Input pin for the output section
This pin is placed in the standby state if VEN = low. Standby current is 10 μA or less.
3
VIN2
Input pin for the control section
This pin is placed in the standby state if VEN = low. Standby current is 10 μA or less.
4
SGND
Ground pin for the control section
5
VFB
Feedback pin
This input is fed into an internal error amplifier with a reference voltage of 0.8 V (typ.).
6
SS
Soft-start pin
When the SS input is left open, the soft-start time is 1 ms (typ.). The soft-start time can be adjusted
with an external capacitor. The external capacitor is charged from a 8
μA (typ.) constant-current
source, and the reference voltage of the error amplifier is regulated between 0 V and 0.8 V. The
external capacitor is discharged when EN
= low and in case of undervoltage lockout or thermal
shutdown.
7
EN
Enable pin
When EN
≥ 1.5 V (@ VIN = 5 V), the internal circuitry is allowed to operate and thus enable the
switching operation of the output section. When EN
≤ 0.5 V (@ VIN = 5 V), the internal circuitry is
disabled, putting the TCV7104FN in Standby mode.
This pin has an internal pull-down resistor of approx. 500 k
Ω.
8
LX
Switch pin
This pin is connected to high-side P-channel MOSFET and low-side N-channel MOSFET.
VIN2
VFB
Constant-current
source (8
μA)
Soft Start
Ref. Voltage (0.8 V)
SS
EN
Under
voltage
lockout
Control logic
Slope
Compensation
Oscillator
Error amplifier
Driver
Phase compensation
Short-Circuit
Protection
LX
PGND
VIN1
Current detection
SGND
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| TCV7104FN(TE85L,F) | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 2.7 to 5.5V 1500kHz 2A 1Ch DC DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| TCV7105F | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Buck DC-DC Converter IC |
| TCV7106FN | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Buck DC-DC Converter IC |
| TCV7106FN(TE85L,F) | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 2.7 to 5.5V 550kHz 2.5A at 3.3V .12 Ohm RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| TCV7107F | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Buck DC-DC Converter IC |
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