LP3905SD-30EV National Semiconductor, LP3905SD-30EV Datasheet - Page 4

• Manufacturer Part Number: LP3905SD-30EV
• Description: BOARD EVALUATION LP3905SD-30
• Manufacturer: National Semiconductor

Specifications of LP3905SD-30EV

• Main Purpose: DC/DC, Step Down with LDO
• Outputs And Type: 4, Non-Isolated
• Voltage - Output: 1.2V, 1.875, 2.8V, 2.8V
• Current - Output: 600mA, 600mA, 100mA, 100mA
• Voltage - Input: 3 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 2MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LP3905
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

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Login Input Thresholds
V
I
V
V
I
V
T
Q
EN
SHUTDOWN
IN
IH
IL
UVLO-R
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
General Electrical Characteristics
Limits in standard typeface are for T
T
V
FB1, FB2, EN1,EN2
Continuous Power Dissipation
(Note 3)
Junction Temperature (T
Storage Temperature Range
Maximum Lead Temperature
ESD Rating (Note 4)
Symbol
J
IN
(Soldering, 10 sec.)
Human Body Model:
≤ +125˚C). Unless otherwise noted, specifications apply to the LP3905 Typical Application Circuit (Figure. 1)
1,V
IN
2
Input Voltage Range
Shutdown Supply Current
No load Supply Current (Note 15)
Logic High Input
Logic Low Input
Enable (EN1,2) Input Current
(Note 14)
Battery Under Voltage Lock-Out
Thermal Shutdown (Note 15)
J-MAX
Parameter
)
J
= 25˚C. Limits in boldface type apply over the full junction temperature range (−40˚C ≤
(V
IN
Internally Limited
−65˚C to +150˚C
+ 0.2V) to 6.0V
(GND−0.2V) to
−0.2V to 6.0V
(Note 1)
All Circuits OFF except for POR and
UVLO
LDO1 & 2 and Buck1 & 2 on
( PWM only versions ) LDO1 & 2
and Buck1 & 2 on
V
V
EN1/EN2 = 5.5V and V
EN1/EN2 = 0V and V
V
Temperature
Hysteresis
IN
IN
IN
+150˚C
260˚C
(max)
2.5kV
= 3.0V to 5.5V
= 3.0V to 5.5V
Rising
(Notes 2, 8, 9)
4
Condition
Operating Ratings
Thermal Properties
V
Voltage),V
Voltage) (Note 7)
Recommended Load Current
(Buck)
Recommended Load Current
(LDO)
Junction Temperature (T
Range
Ambient Temperature (T
Range (Note 5)
Junction-to-Ambient
Thermal Resistance (θ
SDA14B package(Note 6)
IN
1 (Buck1&2 Input
IN
= 5.5V
IN
= 5.5V
IN
2 (LDO1&2 Input
JA
Min
1.2
2.1
A
J
)
3
)
)
(Notes 1, 2)
0.001
Typ
140
160
6.5
2.7
20
7
5
0mA to 100mA with
0mA to 150mA with
−40˚C to +125˚C
0.47uF O/P cap
0mA to 600 mA
−40˚C to +85˚C
Max
10.0
10.0
250
5.5
0.4
8.5
0.1
3.1
1.0uF O/P cap
3V to 5.5V
37.3
Units
o
C/W
mA
µA
µA
µA
˚C
V
V
V
V