參數(shù)資料
型號(hào)： LM2794BL/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHED CAPACITOR REGULATOR, 675 kHz SWITCHING FREQ-MAX, PBGA14
封裝： LEAD FREE, CSP-14
文件頁數(shù)： 10/16頁
文件大?。?/td> 487K
代理商： LM2794BL/NOPB
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN
0.5 to 6.2V max
SD
0.5 to (V
IN+0.3V) w/
6.2V max
BRGT
0.5 to (V
IN+0.3V) w/
6.2V max
Continuous Power Dissipation
Internally Limited
T
135C
θ
JA (Notes 2, 3)
125C/W
Storge Temperature
65C to +150C
Lead Temp. (Soldering, 5 sec.)
260C
ESD Rating (Note 4)
Human Body Model
2kV
Machine Model
200V
Operating Conditions
Input Voltage (V
IN)
2.7V to 5.5V
Ambient Temperature (T
A)
30C to +85C
Junction Temperature (T
J)
30C to +100C
Electrical Characteristics
Limits in standard typeface are for T
J = 25C and limits in boldface type apply over the full Operating Junction Temperature
Range (30C
≤ T
J
≤ +100C). Unless otherwise specified, C1 = C2 = C
IN =CHOLD = 1 F, VIN = 3.6V, BRGT pin = 0V; RSET
=124
; LM2794:V
SD =VIN (LM2795: VSD = 0V).
Symbol
Parameter
Conditions
Min
Typ
Max
Units
I
DX
Available Current at Output Dx
3.0V
≤ V
IN
≤ 5.5V
V
DX
≤ 3.8V
BRGT = 50mV
15
16.8
mA
2.7V
≤ V
IN
≤ 3.0V
V
DX
≤ 3.6V
BRGT = 0V
10
mA
V
DX
≤ 3.8V
BRGT = 200mV
20
mA
V
DX
Available Voltage at Output Dx
3.0V
≤ V
IN
≤ 5.5V
I
DX
≤ 15mA
BRGT = 50mV
3.8
V
I
DX
Line Regulation of Dx Output
Current
3.0V
≤ V
IN
≤ 5.5V
V
DX = 3.6V
14.18
15.25
16.78
mA
3.0V
≤ V
IN
≤ 4.4V
V
DX = 3.6V
14.18
15.25
16.32
mA
I
DX
Load Regulation of Dx Output
Current
V
IN = 3.6V
3.0V
≤ V
DX
≤ 3.8V
14.18
15.25
16.32
mA
I
D-MATCH
Current Matching Between Any
Two Outputs
V
IN = 3.6V, VDX = 3.6V
0.5
%
I
Q
Quiescent Supply Current
3.0V
≤ V
IN
≤ 4.2V, Active, No
Load Current
R
SET = OPEN
5.5
8.2
mA
I
SD
Shutdown Supply Current
3.0V
≤ V
IN
≤ 5.5V, Shutdown
2.3
5
A
I
PULL-SD
Shutdown Pull-Up Current
(LM2795)
V
IN = 3.6V
1.5
A
V
CP
Input Charge-Pump Mode To
Pass Mode Threshold
4.7
V
CPH
Input Charge-Pump Mode To
Pass Mode Hysteresis
250
mV
V
IH
SD Input Logic High (LM2794)
3.0V
≤ V
IN
≤ 5.5V
1.0
V
SD Input Logic High (LM2795)
0.8V
IN
V
IL
SD Input Logic Low (LM2794)
3.0V
≤ V
IN
≤ 5.5V
0.2
V
SD Input Logic Low (LM2795)
0.2V
IN
I
LEAK-SD
SD Input Leakage Current
0V
≤ V
SD
≤ V
IN
100
nA
R
BRGT
BRGT Input Resistance
240
k
I
SET
I
SET Pin Output Current
I
DX/10
mA
LM2794/LM2795
www.national.com
3
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