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參數資料
型號: TPS7233QPW
廠商: Texas Instruments, Inc.
英文描述: MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
中文描述: 微功率低壓差(LDO)穩壓器
文件頁數: 27/37頁
文件大小: 581K
代理商: TPS7233QPW
TPS7201Q, TPS7225Q, TPS7230Q
TPS7233Q, TPS7248Q, TPS7250Q, TPS72xxY
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS102G – MARCH 1995 – REVISED JUNE 2000
27
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
C1
0.1
μ
F
NOTE A: TPS7225, TPS7230, TPS7233, TPS7248, TPS7250
(fixed-voltage options).
SENSE
PG
OUT
OUT
6
5
4
IN
IN
EN
GND
3
2
1
7
8
VI
PG
CSR = 1
VO
10
μ
F
+
TPS72xx
(see Note A)
250 k
Figure 31. Typical Application Circuit
external capacitor requirements
Although not required, a 0.047-
μ
F to 0.1-
μ
F ceramic bypass input capacitor, connected between IN and GND
and located close to the TPS72xx, is recommended to improve transient response and noise rejection. A
higher-value electrolytic input capacitor may be necessary if large, fast-rise-time load transients are anticipated
and the device is located several inches from the power source.
An output capacitor is required to stabilize the internal feedback loop. For most applications, a 10-
μ
F to 15-
μ
F
solid-tantalum capacitor with a 0.5-
resistor (see capacitor selection table) in series is sufficient. The maximum
capacitor ESR should be limited to 1.3
to allow for ESR doubling at cold temperatures. Figure 32 shows the
transient response of a 5-mA to 85-mA load using a 10-
μ
F output capacitor with a total ESR of 1.7
.
A 4.7-
μ
F solid-tantalum capacitor in series with a 1-
resistor may also be used (see Figures 27 and 28)
provided the ESR of the capacitor does not exceed 1
at room temperature and 2
over the full operating
temperature range.
相關PDF資料
PDF描述
TPS7233QPWG4 MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
TPS7230QDR MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
TPS7248QPWRG4 MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
TPS731XX Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
TPS73201DCQT Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
相關代理商/技術參數
參數描述
TPS7233QPWG4 功能描述:低壓差穩壓器 - LDO LDO PMOS Voltage RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS7233QPWR 功能描述:低壓差穩壓器 - LDO LDO PMOS Voltage RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS7233QPWRG4 功能描述:低壓差穩壓器 - LDO LDO PMOS Voltage RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS7248QD 功能描述:低壓差穩壓器 - LDO LDO PMOS Voltage RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
TPS7248QDG4 功能描述:低壓差穩壓器 - LDO LDO PMOS Voltage RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
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