参数资料
型号: TPS75325QPWPREP
厂商: Texas Instruments
文件页数: 19/33页
文件大小: 0K
描述: IC REG LDO 2.5V 1.5A 20HTSSOP
标准包装: 1
稳压器拓扑结构: 正,固定式
输出电压: 2.5V
输入电压: 2.7 V ~ 5 V
稳压器数量: 1
电流 - 输出: 1.5A(最小值)
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)裸露焊盘
供应商设备封装: 20-HTSSOP
包装: 标准包装
其它名称: 296-22508-6
TPS75101 EP, '75115 EP, '75118 EP, '75125 EP, '75133 EP WITH POWER GOOD
TPS75301 EP, TPS75315 EP, TPS75318 EP, TPS75325 EP, TPS75333 EP WITH RESET
FAST TRANSIENT RESPONSE 1.5 A LOW DROPOUT VOLTAGE REGULATORS
SGLS158 ? APRIL 2003
APPLICATION INFORMATION
programming the TPS75x01Q adjustable LDO regulator
The output voltage of the TPS75x01Q adjustable regulator is programmed using an external resistor divider as
shown in Figure 24. The output voltage is calculated using:
1 ) R1
V
O
+ V
ref
R2
(1)
Where:
V ref = 1.1834 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 40- μ A divider current. Lower value resistors can be used
but offer no inherent advantage and waste more power. Higher values should be avoided as leakage currents at
FB increase the output voltage error. The recommended design procedure is to choose
R2 = 30.1 k ? to set the divider current at 40 μ A and then calculate R1 using:
O * 1
ref
R1 +
V
V
R2
(2)
OUTPUT VOLTAGE
TPS75x01Q
PROGRAMMING GUIDE
CO
≥ 2V
VI
0.22 μ F
≤ 0.7 V
IN
EN
PG or
RESET
OUT
PG or RESET Output
250 k ?
VO
R1
OUTPUT
R1 R2 UNIT
VOLTAGE
2.5 V 33.2 30.1 k ?
3.3 V 53.6 30.1 k ?
3.6 V 61.9 30.1 k ?
NOTE: To reduce noise and prevent
FB/SENSE
oscillation, R1 and R2 need to be as close
GND
R2
as possible to the FB/SENSE terminal.
Figure 24. TPS75x01Q Adjustable LDO Regulator Programming
POST OFFICE BOX 655303
? DALLAS, TEXAS 75265
19
相关PDF资料
PDF描述
1008-027M INDUCTOR .0027UH UNSHIELDED SMD
ASC20DRAN CONN EDGECARD 40POS .100 R/A DIP
LT3845EFE#PBF IC REG CTRLR BUCK PWM CM 16TSSOP
RBM10DRSD-S664 CONN EDGECARD 20POS DIP .156 SLD
1008-022M INDUCTOR .0022UH UNSHIELDED SMD
相关代理商/技术参数
参数描述
TPS75325QPWPRG4 功能描述:低压差稳压器 - LDO Fast-Tran-Resp 1.5-A RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压(最大值):307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20
TPS75325QPWPRQ1 功能描述:低压差稳压器 - LDO Fast-Transient Response1.5-A RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压(最大值):307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20
TPS75333QPWP 功能描述:低压差稳压器 - LDO Fast-Tran-Resp 1.5-A RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压(最大值):307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20
TPS75333QPWP 制造商:Texas Instruments 功能描述:V REG +3.3V SMD 75333 TSSOP20
TPS75333QPWPG4 功能描述:低压差稳压器 - LDO Fast-Tran-Resp 1.5-A RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压(最大值):307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20