LM26001QMXAX/NOPB National Semiconductor, LM26001QMXAX/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM26001QMXAX/NOPB
• Description: IC REG SW 1.5A W/SLEEP 16-TSSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Step-Down (Buck)r

Specifications of LM26001QMXAX/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 35 V
• Current - Output: 1.5A
• Frequency - Switching: 150kHz ~ 500kHz
• Voltage - Input: 4 ~ 38 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Power - Output: 2.6W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM26001QMXAX

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Connection Diagram
Ordering Information
*Automotive Grade (Q) product incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies.
Reliability qualification is compliant with the requirements and temperature grades defined in the AEC-Q100 standard. Automotive grade products are identified
with the letter Q. For more information go to http://www.national.com/automotive.
Pin Descriptions
Pin #
LM26001QMXAX
EP
LM26001QMXA
10
11
12
13
14
15
16
LM26001MXAX
Order Number
1
2
3
4
5
6
7
8
9
LM26001MXA
Pin Name
PGOOD
FPWM
COMP
VBIAS
FREQ
SYNC
BOOT
GND
VDD
VIN
VIN
SW
SW
EN
SS
FB
EP
TSSOP-16EXP
TSSOP-16EXP
TSSOP-16EXP
TSSOP-16EXP
Package Type
Power supply input
Power supply input
Power Good pin. An open drain output which goes high when the output voltage is greater than
92% of nominal.
Enable is an analog level input pin. When pulled below 0.8V, the device enters shutdown mode.
Soft-start pin. Connect a capacitor from this pin to GND to set the soft-start time.
Compensation pin. Connect to a resistor capacitor pair to compensate the control loop.
Feedback pin. Connect to a resistor divider between Vout and GND to set output voltage.
Ground
Frequency adjust pin. Connect a resistor from this pin to GND to set the operating frequency.
FPWM is a logic level input pin. For normal operation, connect to GND. When pulled high, sleep
mode operation is disabled.
Frequency synchronization pin. Connect to an external clock signal for synchronized operation.
SYNC must be pulled low for non-synchronized operation.
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.
The output of the internal regulator. Bypass with a minimum 1.0 µF capacitor.
Bootstrap capacitor pin. Connect a 0.1µF minimum ceramic capacitor from this pin to SW to
generate the gate drive bootstrap voltage.
Switch pin. The source of the internal N-channel switch.
Switch pin. The source of the internal N-channel switch.
Exposed Pad thermal connection. Connect to GND.
Package
Drawing
MXA16A
MXA16A
MXA16A
MXA16A
16-Lead Plastic TSSOP
Package Marking
LM26001QMXA
LM26001QMXA
LM26001MXA
LM26001MXA
Top View
2
2500 Units of Tape and Reel
2500 Units of Tape and Reel
Description
92 Units of Rail
92 Units of Rail
Supplied As
20179402
qualified. Automotive
AEC-Q100 Grade 1
Grade Production
Features
Flow*