TPS755 5A、低静态电流、快速瞬态响应 LDO | 德州仪器 TI.com.cn

TPS755 (正在供货) 5A、低静态电流、快速瞬态响应 LDO

5A、低静态电流、快速瞬态响应 LDO - TPS755
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描述

The TPS755xx family of 5-A low dropout (LDO) regulators contains four fixed voltage option regulators with integrated power-good (PG\) and an adjustable voltage option regulator. These devices are capable of supplying 5 A of output current with a dropout of 250 mV (TPS75533). Therefore, the device is capable of performing a 3.3-V to 2.5-V conversion. Quiescent current is 125 uA at full load and drops down to less than 1 uA when the device is disabled. The TPS755xx is designed to have fast transient response for large load current changes.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 250 mV at an output current of 5 A for the TPS75533) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 125 uA over the full range of output current). These two key specifications yield a significant improvement in operating life for battery-powered systems.

The device is enabled when EN\ is connected to a low-level voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN\ (enable) shuts down the regulator, reducing the quiescent current to less than 1 uA at TJ = 25°C. The power-good terminal (PG\) is an active low, open drain output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS755xx is offered in 1.5-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.22 V to 5 V). Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS755xx family is available in a 5-pin TO\x96220 (KC) and TO\x96263 (KTT) packages.

特性

  • 5-A Low-Dropout Voltage Regulator
  • Available in 1.5-V, 1.8-V, 2.5-V, and 3.3-V Fixed-Output and Adjustable Versions
  • Open Drain Power-Good (PG\) Status Output (Fixed Options Only)
  • Dropout Voltage Typically 250 mV at 5 A (TPS75533)
  • Low 125 uA Typical Quiescent Current
  • Fast Transient Response
  • 3% Tolerance Over Specified Conditions for Fixed-Output Versions
  • Available in 5-Pin TO\x96220 and TO\x96263 Surface-Mount Packages
  • Thermal Shutdown Protection

参数

与其它产品相比 线性稳压器(LDO) 邮件 下载到电子表格中
Part number 立即下单 Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Fixed output options (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
TPS755 立即下单 Adjustable Output
Fixed Output    
5     5.5     2.8     5     1.22     1.5
1.8
2.5
3.3    
DDPAK/TO-263 | 5
TO-220 | 5    
Enable
Power Good    
1     -40 to 125     39     35     2.84 | 1ku     Catalog     12     3     250     0.12     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)    
TPS756 立即下单 Adjustable Output
Fixed Output    
5     5.5     2.8     5     1.22     1.5
1.8
2.5
3.3    
DDPAK/TO-263 | 5
TO-220 | 5    
Enable     1     -40 to 85     39     35     2.84 | 1ku     Catalog     12     3     250     0.12     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)    
TPS757 立即下单 Adjustable Output
Fixed Output    
3     5.5     2.8     5     1.22     1.5
1.8
2.5
3.3    
DDPAK/TO-263 | 5
TO-220 | 5    
Enable
Power Good    
1     -40 to 125     39     35     3.31 | 1ku     Catalog     12     3     150     0.12     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)    
TPS758 立即下单 Adjustable Output
Fixed Output    
3     5.5     2.8     5     1.22     1.5
1.8
2.5
3.3    
DDPAK/TO-263 | 5
TO-220 | 5    
Enable     1     -40 to 125
-40 to 85    
39     35     2.52 | 1ku     Catalog     12     3     150     0.12     5DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 5)
See datasheet (TO-220)    
TPS759 立即下单 Adjustable Output
Fixed Output    
7.5     5.5