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参数资料
| 型号： | TPS54311PWPRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 6 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | GREEN, PLASTIC, HTSSOP-20 |
| 文件页数： | 15/19页 |
| 文件大小： | 469K |
| 代理商： | TPS54311PWPRG4 |
TPS54311, TPS54312
TPS54313, TPS54314
TPS54315, TPS54316
SLVS416B FEBRUARY 2002 REVISED APRIL 2005
www.ti.com
5
PIN ASSIGNMENTS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
AGND
VSENSE
NC
PWRGD
BOOT
PH
RT
FSEL
SS/ENA
VBIAS
VIN
PGND
PWP PACKAGE
(TOP VIEW)
NC No internal connection
Terminal Functions
TERMINAL
DESCRIPTION
NAME
NO.
DESCRIPTION
AGND
1
Analog ground. Return for compensation network/output divider, slow-start capacitor, VBIAS capacitor, RT resistor and
FSEL pin. Make PowerPAD connection to AGND.
BOOT
5
Bootstrap input. 0.022-F to 0.1-F low-ESR capacitor connected from BOOT to PH generates floating drive for the
high-side FET driver.
FSEL
19
Frequency select input. Provides logic input to select between two internally set switching frequencies.
NC
3
No connection
PGND
1113 Power ground. High current return for the low-side driver and power MOSFET. Connect PGND with large copper areas to the
input and output supply returns, and negative terminals of the input and output capacitors.
PH
610
Phase input/output. Junction of the internal high and low-side power MOSFETs, and output inductor.
PWRGD
4
Power good open drain output. Hi-Z when VSENSE ≥ 90% Vref, otherwise PWRGD is low. Note that output is low when
SS/ENA is low or internal shutdown signal active.
RT
20
Frequency setting resistor input. Connect a resistor from RT to AGND to set the switching frequency, fs.
SS/ENA
18
Slow-start/enableinput/output. Dual function pin which provides logic input to enable/disable device operation and capacitor
input to externally set the start-up time.
VBIAS
17
Internal bias regulator output. Supplies regulated voltage to internal circuitry. Bypass VBIAS pin to AGND pin with a high
quality, low ESR 0.1-F to 1.0-F ceramic capacitor.
VIN
1416 Input supply for the power MOSFET switches and internal bias regulator. Bypass VIN pins to PGND pins close to device
package with a high quality, low ESR 1-F to 10-F ceramic capacitor.
VSENSE
2
Error amplifier inverting input. Connect directly to output voltage sense point.
相关PDF资料 |
PDF描述 |
|---|---|
| TPS54316PWP | 6 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS54313PWP | 6 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS54314PWPR | 6 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS54314PWPRG4 | 6 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20 |
| TPS54315PWPR | 6 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20 |
相关代理商/技术参数 |
参数描述 |
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| TPS54312 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs |
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| TPS54312PWP | 功能描述:直流/直流开关调节器 Lo-In Voltage 3A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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| TPS54312PWPG4 | 功能描述:直流/直流开关调节器 Lo-In Voltage 3A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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