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LM26001_0609 データシート(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部品番号 LM26001_0609
部品情報  1.5A Switching Regulator with High Efficiency Sleep Mode
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM26001_0609 データシート(HTML) 2 Page - National Semiconductor (TI)

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Connection Diagram
20179402
Top View
16-Lead Plastic TSSOP
Ordering Information
Order Number
Package Type
Package Drawing
Package Marking
Supplied As
LM26001MXA
TSSOP-16EXP
MXA16A
LM26001EM
92 Units of Rail
LM26001MXAX
TSSOP-16EXP
MXA16A
LM26001EM
2500 Units of Tape and Reel
Pin Descriptions
Pin #
Pin Name
Description
1
VIN
Power supply input
2
VIN
Power supply input
3
PGOOD
Power Good pin. An open drain output which goes high when the output voltage is greater than
92% of nominal.
4
EN
Enable is an analog level input pin. When pulled below 0.8V, the device enters shutdown
mode.
5
SS
Soft-start pin. Connect a capacitor from this pin to GND to set the soft-start time.
6
COMP
Compensation pin. Connect to a resistor capacitor pair to compensate the control loop.
7
FB
Feedback pin. Connect to a resistor divider between Vout and GND to set output voltage.
8
GND
Ground
9
FREQ
Frequency adjust pin. Connect a resistor from this pin to GND to set the operating frequency.
10
FPWM
FPWM is a logic level input pin. For normal operation, connect to GND. When pulled high,
sleep mode operation is disabled.
11
SYNC
Frequency synchronization pin. Connect to an external clock signal for synchronized operation.
SYNC must be pulled low for non-synchronized operation.
12
VBIAS
Connect to an external 3V or greater supply to bypass the internal regulator for improved
efficiency. If not used, VBIAS should be tied to GND.
13
VDD
The output of the internal regulator. Bypass with a minimum 1.0 µF capacitor.
14
BOOT
Bootstrap capacitor pin. Connect a 0.1µF minimum ceramic capacitor from this pin to SW to
generate the gate drive bootstrap voltage.
15
SW
Switch pin. The source of the internal N-channel switch.
16
SW
Switch pin. The source of the internal N-channel switch.
EP
EP
Exposed Pad thermal connection. Connect to GND.
www.national.com
2


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