參數(shù)資料
型號(hào): LP3927ILQ-AJ
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 電源管理
英文描述: Cellular/PCS System Power Management IC
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, CQCC28
封裝: LLP-28
文件頁(yè)數(shù): 5/16頁(yè)
文件大?。?/td> 326K
代理商: LP3927ILQ-AJ
Absolute Maximum Ratings
(Notes 1,
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
All pins except LED_PGM,
BYP, op amp’s inputs & output
OP_AMP_OUT, IN-, IN+
GND to GND SLUG
Junction Temperature
Storage Information
Soldering Temperature
Pad Temperature
Maximum Power Dissipation (Note 3)
ESD (Note 4):
KYBD
0.3V to 6.0V
-0.3V to 5.5V
±
0.3V
150C
65C to 150C
235C
2.6W
4 kV
All other pins
2 kV
Operating Ratings
(Notes 1, 2)
V
DD1
, V
DD2
, V
DD3
, KYBD, OP_AMP_V
DD
EN3, EN4, EN5
C
OUT
:
Capacitance
ESR
Junction Temperature
Operating Temperature
Thermal Resistance (Note 5)
θ
JA
(LLP28)
Maximum Power Dissipation (Note 6)
3.0V to 5.5V
0.3V to (V
DD
+ 0.3V)
1.0 μF to 20.0 μF
0.005
to 0.5
40C to 125C
40C to 85C
30.8C/W
1.78W
Electrical Characteristics, LDO’s
Unless otherwise noted, V
= V
+ 0.7V, C
(V
, V
, V
DD3
) = 4.7 μF, C
OUT
(VO1 to VO5) = 2.2 μF, C
=
0.1 μF. Typical values and limits appearing in normal type apply for T
boldface
type apply over
the entire junction temperature range for operation, 40C to +85C. (Notes 7, 8)
Symbol
Parameter
Conditions
Typical
Limit
Units
Min
3
2
Max
5.5
+2
V
DD
V
OUT
Input Voltage Range
Output Voltage Tolerance
V
DD1
, V
DD2
, V
DD3
,KYBD
I
OUT
= I
MAX
/2,
V
DD
= 3.7V
I
OUT
= 100 μA to I
MAX
,
V
DD
= 3.7V
V
DD
= V
OUT(target)
+0.7V to 5.5V
I
OUT
= I
MAX
/2
3.7
V
%
Load Regulation
2
+2
%
Line Regulation
40
+40
mV
Total Accuracy Error
Dropout Voltage
3.5
+3.5
170
200
%
mV
V
IN
- V
OUT
I
OUT
= I
MAX
(Note 9)
100
e
N
Output Noise Voltage
I
OUT
= 100 μA,
10 Hz
f
100 kHz
C
IN
= 2.2μF, I
OUT
= I
MAX
,
f = 100 Hz
f = 1 kHz
f = 10 kHz
f = 100 kHz
(Note 10)
I
OUT
= 0, PS_HOLD = KYBD = 0
VEXT = V
DD
I
OUT1
= I
OUT2
= 1 mA,
LDO3, LDO4, LDO5 OFF
I
OUT1
, I
OUT2
, I
OUT3
, I
OUT4
, I
OUT5
= I
MAX
V
OUT
= 0V
Capacitance
ESR
27
μV
rms
PSRR
Power Supply Ripple
Rejection Ratio
45
45
30
10
30
dB
Cross Talk
Quiescent Current
dB
μA
I
Q
5
8
I
GND
Ground Current
100
200
μA
400
400
950
I
SC
C
OUT
Short Circuit Current Limit
Output Capacitor
% of I
MAX
μF
m
1
5
20
500
200
R
SHUNT
V
O2
- V
O5
Output Shunt
Resistor
70
L
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