參數(shù)資料
型號(hào)： TPS7248QPWRG4
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(wěn)壓器
文件頁(yè)數(shù)： 28/37頁(yè)
文件大?。?/td> 581K
代理商： TPS7248QPWRG4
TPS7201Q, TPS7225Q, TPS7230Q
TPS7233Q, TPS7248Q, TPS7250Q, TPS72xxY
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS102G – MARCH 1995 – REVISED JUNE 2000
28
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
2
→
1
→
Ch 2
VO
IO = 5 mA
Ch1
50 mV
50 mA
100
μ
s/div
VI = VO + 1 V
IO = 85 mA
Figure 32. Load Transient Response (CSR total = 1.7
), TPS7248Q
A partial listing of surface-mount capacitors usable with the TPS72xx family is provided below. This information
(along with the stability graphs, Figures 27 through 30) is included to assist the designer in selecting suitable
capacitors.
CAPACITOR SELECTION
MFR.
Sprague
15
μ
F, 20 V
Sprague
15
μ
F, 25 V
Sprague
10
μ
F, 25 V
Sprague
10
μ
F, 35 V
PART NO.
VALUE
MAX ESR
1.1
1
1.2
1.3
SIZE (H
×
L
×
W)
1.2
×
7.2
×
6
2.5
×
7.1
×
3.2
2.5
×
7.1
×
3.2
2.5
×
7.6
×
2.5
592D156X0020R2T
595D156X0025C2T
595D106X0025C2T
695D106X0035G2T
Size is in mm. ESR is maximum resistance in ohms at 100 kHz and TA = 25
°
C. Listings are sorted by height.
sense-pin connection
SENSE must be connected to OUT for proper operation of the regulator. Normally this connection should be
as short as possible; however, remote sense may be implemented in critical applications when proper care of
the circuit path is exercised. SENSE internally connects to a high-impedance wide-bandwidth amplifier through
a resistor-divider network, and any noise pickup on the PCB trace will feed through to the regulator output.
SENSE must be routed to minimize noise pickup. Filtering SENSE using an RC network is not recommended
because of the possibility of inducing regulator instability.
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