參數(shù)資料
型號(hào)： TPS7201Q
廠商： Texas Instruments, Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Low-Dropout Voltage Regulators(微功耗，低壓差PMOS穩(wěn)壓器,輸出電壓可調(diào),工作溫度-55~150℃)
中文描述： 低壓差穩(wěn)壓器（微功耗，低壓差PMOS管穩(wěn)壓器，輸出電壓可調(diào)，工作溫度-55?150℃）
文件頁數(shù)： 11/32頁
文件大?。?/td> 826K
代理商： TPS7201Q
TPS7201Q, TPS7233Q, TPS7248Q, TPS7250Q
TPS7201Y, TPS7233Y, TPS7248Y, TPS7250Y
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS
SLVS102D – MARCH 1995 – REVISED DECEMBER 1995
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics, I
O
= 10 mA, EN = 0 V, C
O
= 4.7
μ
F (CSR
= 1
), T
J
= 25
°
C, SENSE/FB
shorted to OUT (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TPS7201Y, TPS7233Y
TPS7248Y, TPS7250Y
MIN
TYP
UNIT
MAX
Ground current (active mode)
EN
≤
0.5 V,
0 mA
≤
IO
≤
250 mA
VO = 0 V,
VI = VO + 1 V,
180
μ
A
Output current limit threshold
VI = 10 V
0.6
A
°
C
mV
Thermal shutdown junction temperature
165
EN hysteresis voltage
50
Minimum VI for active pass element
Minimum VI for valid PG
1.9
V
IPG = 300
μ
A
0.95
V
electrical characteristics, I
O
= 10 mA, EN = 0 V, C
O
= 4.7
μ
F (CSR
= 1
), T
J
= 25
°
C, FB shorted to
OUT at device leads (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TPS7201Y
TYP
UNIT
MIN
MAX
Reference voltage (measured at FB with OUT
connected to FB)
VI = 3.5 V,
IO = 10 mA
1.188
V
VI = 2.4 V,
VI = 2.4 V,
VI = 2.9 V,
VI = 3.9 V,
VI = 5.9 V,
2.5 V
≤
VI
≤
10 V,
See Note 2
50
μ
A
≤
IO
≤
100 mA
100 mA
≤
IO
≤
200 mA
50
μ
A
≤
IO
≤
250 mA
50
μ
A
≤
IO
≤
250 mA
50
μ
A
≤
IO
≤
250 mA
IO = 5 mA to 250 mA,
2.1
2.9
Pass-element series resistance (see Note 3)
1.6
1
0.8
Output regulation
15
mV
2.5 V
≤
VI
≤
10 V,
See Note 2
IO = 50
μ
A to 250 mA,
17
Ri
l
j
i
VI= 3 5 V
VI = 3.5 V,
f = 120 Hz
IO = 50
μ
A
IO = 250 mA,
See Note 2
60
dB
50
Output noise spectral density
VI = 3.5 V,
f = 120 Hz
2
μ
V/
√
Hz
Output noise voltage
VI = 3.5 V,
10 Hz
≤
f
≤
100 kHz,
CSR = 1
CO = 4.7
μ
F
CO = 10
μ
F
CO = 100
μ
F
Measured at VFB
IPG = 400
μ
A
235
190
Vrms
μ
125
PG hysteresis voltage§
VI = 3.5 V,
VI = 2.13 V,
VI = 3.5 V
12
mV
PG output low voltage§
0.1
V
FB input current
CSR refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance
to CO.
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must be
taken into account separately.
§Output voltage programmed to 2.5 V with closed-loop configuration (see application information).
NOTES:
2 When VI < 2.9 V and IO > 100 mA simultaneously, pass element rDS(on) increases (see Figure 10) to a point such that the resulting
dropout voltage prevents the regulator from maintaining the specified tolerance range.
3 To calculate dropout voltage, use equation:
VDO = IO
rDS(on)
rDS(on) is a function of both output current and input voltage. The parametric table lists rDS(on) for VI = 2.4 V, 2.9 V, 3.9 V, and
5.9 V, which corresponds to dropout conditions for programmed output voltages of 2.5 V, 3 V, 4 V, and 6 V, respectively. For other
programmed values, refer to Figures 10 and 11.
0.1
nA
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