參數(shù)資料
型號(hào)： TPS7350Y
廠商： Texas Instruments, Inc.
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： Low-Dropout Voltage Regulators(帶延遲復(fù)位功能的低壓差穩(wěn)壓器)
中文描述： 低壓差穩(wěn)壓器（帶延遲復(fù)位功能的低壓差穩(wěn)壓器）
文件頁(yè)數(shù)： 12/37頁(yè)
文件大小： 839K
代理商： TPS7350Y
TPS7301Q, TPS7333Q, TPS7348Q, TPS7350Q
LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED DELAYED RESET FUNCTION
SLVS124D – JUNE 1995 – REVISED JANUARY 1997
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TPS7301Y electrical characteristics at I
O
= 10 mA, V
I
= 3.5 V, 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
IO = 10 mA
50
μ
A
≤
IO
≤
150 mA
150 mA
≤
IO
≤
500 mA
50
μ
A
≤
IO
≤
500 mA
50
μ
A
≤
IO
≤
500 mA
50
μ
A
≤
IO
≤
500 mA
VI = 2.5 V to 10 V,
See Note 1
MIN
TYP
MAX
UNIT
Reference voltage (measured at FB)
VI = 3.5 V,
VI = 2.4 V,
VI = 2.4 V,
VI = 2.9 V,
VI = 3.9 V,
VI = 5.9 V,
1.182
V
0.7
0.83
Pass-element series resistance (see Note 2)
0.52
0.32
0.23
Input regulation
50
μ
A
≤
IO
≤
500 mA,
3
mV
Output regulation
2.5 V
≤
VI
≤
10 V,
See Note 1
IO = 5 mA to 500 mA,
5
mV
2.5 V
≤
VI
≤
10 V,
See Note 1
IO = 50
μ
A to 500 mA,
7
mV
Ripple rejection
f = 120 Hz
IO = 50
μ
A
IO = 500 mA,
See Note 1
59
dB
54
Output noise-spectral density
f = 120 Hz
2
μ
V/
√
Hz
Output noise voltage
≤
≤
10 Hz
f
100 kHz,
CSR= 1
CO = 4.7
μ
F
CO = 10
μ
F
CO = 100
μ
F
95
89
Vrms
μ
CSR = 1
74
RESET hysteresis voltage§
Measured at VO(FB)
VI = 2.13 V,
12
mV
RESET output low voltage§
IO(RESET) = 400
μ
A
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:
1. When VI < 2.9 V and IO > 150 mA simultaneously, pass element rDS(on) increases (see Figure 32) to a point where the resulting
dropout voltage prevents the regulator from maintaining the specified tolerance range.
2. 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 Figure 32.
0.1
nA
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