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參數(shù)資料
| 型號： | TPS62291TDRVRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 2 X 2 MM, 0.8 MM HEIGHT, GREEN, PLASTIC, SON-6 |
| 文件頁數(shù)： | 20/25頁 |
| 文件大?。?/td> | 817K |
| 代理商： | TPS62291TDRVRQ1 |
DRV PACKAGE
(TOPVIEW)
MODE
FB
GND
SW
EN
VIN
1
2
3
6
5
4
r
Po
w
e
P
A
D
Zero-Pole
AMP.
Integrator
Error Amp
PFMComp .
+1% Voltagepositioning
PWM
Comp .
VREF
Control
Stage
GateDriver
Anti
Shoot-Through
Current
LimitComparator
Current
LimitComparator
VREF+1%
FB
VIN
GND
MODE
SW
1
EN
VIN
Softstart
VOUT RAMP
CONTROL
Thermal
Shutdown
Reference
0.6VVREF
Undervoltage
Lockout1.8V
Limit
HighSide
Limit
LowSide
Sawtooth
Generator
Int. Resistor
Network
FB
R
I3
RI1
RI..N
Mode
GND
2.25MHz
Oscillator
SLVSAI5 – SEPTEMBER 2010
www.ti.com
PIN ASSIGNMENTS
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
VIN
5
PWR
VIN power supply pin.
GND
6
PWR
GND supply pin
This is the enable pin of the device. Pulling this pin to low forces the device into shutdown mode. Pulling
EN
4
I
this pin to high enables the device. This pin must be terminated.
This is the switch pin and is connected to the internal MOSFET switches. Connect the external inductor
SW
1
OUT
between this terminal and the output capacitor.
Feedback Pin for the internal regulation loop. Connect the external resistor divider to this pin. In case of
FB
3
I
fixed output voltage option, connect this pin directly to the output capacitor
MODE pin = high forces the device to operate in fixed-frequency PWM mode. Mode pin = low enables
MODE
2
I
the Power Save Mode with automatic transition from PFM mode to fixed-frequency PWM mode.
FUNCTIONAL BLOCK DIAGRAM
4
Copyright 2010, Texas Instruments Incorporated
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| TPS62293DRVR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2.25MHz 1A Step-Down Cnvrtr RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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 |
| TPS62293DRVRG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2.25MHz 1A Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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 |
| TPS62293DRVT | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2.25MHz 1A Step-Down Cnvrtr RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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 |
| TPS62293DRVTG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2.25MHz 1A Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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 |
| TPS62293TDRVRQ1 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 AC 2.25MHz 1A Step- Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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 |
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