LM5010MH/NOPB National Semiconductor, LM5010MH/NOPB Datasheet - Page 3
![IC BUCK ADJ 1A 14TSSOP](/photos/7/0/70080/pkg_mxa14a_sml.jpg)
LM5010MH/NOPB
Manufacturer Part Number
LM5010MH/NOPB
Description
IC BUCK ADJ 1A 14TSSOP
Manufacturer
National Semiconductor
Type
Step-Down (Buck)r
Datasheet
1.LM5010SDNOPB.pdf
(19 pages)
Specifications of LM5010MH/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
2.5 ~ 70 V
Current - Output
1A
Frequency - Switching
1MHz
Voltage - Input
8 ~ 75 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP Exposed Pad, 14-eTSSOP 14-HTSSOP
Primary Input Voltage
75V
No. Of Outputs
1
Output Voltage
70V
Output Current
1A
Voltage Regulator Case Style
TSSOP
No. Of Pins
14
Operating Temperature Range
-40°C To +125°C
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
Dc
1030
For Use With
LM5010 EVAL - BOARD EVALUATION LM5010
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Other names
*LM5010MH
*LM5010MH/NOPB
LM5010MH
*LM5010MH/NOPB
LM5010MH
Pin Description
LLP-10
10
1
2
3
4
5
6
7
8
9
PIN NUMBER
TSSOP-14
1,7,8,14
10
11
12
13
2
3
4
5
6
9
R
NAME
S
ON
RTN
BST
I
V
SW
V
NC
SEN
FB
SS
GND
CC
IN
/SD
Switching Node
Boost pin for bootstrap capacitor
Current sense
Sense Ground
Circuit Ground
Feedback input from the
regulated output
Softstart
On-time control and shutdown
Output from the startup regulator
Input supply voltage
No connection.
DESCRIPTION
3
Internally connected to the buck switch source.
Connect to the inductor, free-wheeling diode, and
bootstrap capacitor.
Connect a 0.022 µF capacitor from SW to this pin.
The capacitor is charged from V
diode during each off-time.
The re-circulating current flows through the internal
sense resistor, and out of this pin to the
free-wheeling diode. Current limit is nominally set at
1.25A.
Re-circulating current flows into this pin to the
current sense resistor.
Ground for all internal circuitry other than the current
limit detection.
Internally connected to the regulation and
over-voltage comparators. The regulation level is
2.5V.
An internal 11.5 µA current source charges an
external capacitor to 2.5V, providing the softstart
function.
An external resistor from V
buck switch on-time. Grounding this pin shuts down
the regulator.
Nominally regulates at 7.0V. An external voltage
(7.5V-14V) can be applied to this pin to reduce
internal dissipation. An internal diode connects V
to V
Nominal input range is 8.0V to 75V.
No internal connection.
IN
.
APPLICATION INFORMATION
IN
to this pin sets the
CC
via an internal
www.national.com
CC