參數(shù)資料
型號(hào)： LP2950-33LP
廠商： Texas Instruments, Inc.
英文描述： ADJUSTABLE MICROPOWER VOLTAGE REGULATORS WITH SHUTDOWN
中文描述： 可調(diào)微功耗電壓調(diào)節(jié)器具有關(guān)斷
文件頁(yè)數(shù)： 6/26頁(yè)
文件大?。?/td> 2721K
代理商： LP2950-33LP
www.ti.com
LP2950
,
LP2951
ADJUSTABLE MICROPOWER VOLTAGE REGULATORS
WITH SHUTDOWN
SLVS582D–APRIL 2006–REVISED MARCH 2007
Electrical Characteristics (continued)
V
= V
(nominal) + 1 V, I
= 100
μ
A, C
= 1
μ
F (5-V versions) or C
L
= 2.2
μ
F (3-V and 3.3-V versions),
8-pin version: FEEDBACK tied to V
TAP
, OUTPUT tied to SENSE, V
SHUTDOWN
≤
0.7 V
PARAMETER
TEST CONDITIONS
T
J
MIN
TYP
20
MAX
UNIT
25
°
C
40
60
FEEDBACK bias current
nA
–40
°
C to 125
°
C
FEEDBACK bias current
temperature coefficient
25
°
C
0.1
nA/
°
C
ERROR COMPARATOR
25
°
C
0.01
1
2
Output leakage current
V
OUT
= 30 V
μ
A
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
150
250
400
V
IN
= V
– 0.5 V,
I
OL
= 400
μ
A
Output low voltage
mV
40
25
60
Upper threshold voltage
(ERROR output high)
(5)
mV
75
95
Lower threshold voltage
(ERROR output low)
(5)
mV
140
Hysteresis
(6)
15
mV
SHUTDOWN INPUT
Low (regulator ON)
High (regulator OFF)
0.7
Input logic voltage
–40
°
C to 125
°
C
V
2
25
°
C
30
50
V
TAP
= 2.4 V
–40
°
C to 125
°
C
25
°
C
–40
°
C to 125
°
C
25
°
C
100
600
750
10
SHUTDOWN input current
μ
A
450
V
TAP
= 30 V
V
SHUTDOWN
≥
2 V,
V
= 0,
FEEDBACK tied to V
TAP
3
Regulator output current
in shutdown
μ
A
–40
°
C to 125
°
C
20
(5)
Comparator thresholds are expressed in terms of a voltage differential equal to the nominal reference voltage (measured at
V
– V
= 1 V) minus FEEDBACK terminal voltage. To express these thresholds in terms of output voltage change, multiply by the
error amplifier gain = V
/V
= (R1 + R2)/R2. For example, at a programmed output voltage of 5 V, the ERROR output is specified to
go low when the output drops by 95 mV
×
5 V/1.235 V = 384 mV. Thresholds remain constant as a percentage of V
OUT
(as V
OUT
is
varied), with the low-output warning occurring at 6% below nominal (typ) and 7.7% (max).
Comparator thresholds are expressed in terms of a voltage differential equal to the nominal reference voltage (measured at
V
– V
= 1 V) minus FEEDBACK terminal voltage. To express these thresholds in terms of output voltage change, multiply by the
error amplifier gain = V
/V
= (R1 + R2)/R2. For example, at a programmed output voltage of 5 V, the ERROR output is specified to
go low when the output drops by 95 mV
×
5 V/1.235 V = 384 mV. Thresholds remain constant as a percentage of V
OUT
(as V
OUT
is
varied), with the low-output warning occurring at 6% below nominal (typ) and 7.7% (max).
(6)
6
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參數(shù)描述
LP2950-33LPE3 功能描述:低壓差穩(wěn)壓器 - LDO Adj Micropwr Vltg Reg 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP2950-33LPR 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:ADJUSTABLE MICROPOWER VOLTAGE REGULATORS WITH SHUTDOWN
LP2950-33LPRE3 功能描述:低壓差穩(wěn)壓器 - LDO Adj Micropwr Vltg Reg 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP2950-33-S08-B 制造商:UTC-IC 制造商全稱(chēng):UTC-IC 功能描述:100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2950-33-S08-K 制造商:UTC-IC 制造商全稱(chēng):UTC-IC 功能描述:100 mA LOW-DROPOUT VOLTAGE REGULATOR
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