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LM5008AMM/NOPB
Texas Instruments
IC REG BUCK ADJ 350MA 8VSSOP
18940 Pcs New Original In Stock
Buck Switching Regulator IC Positive Adjustable 2.5V 1 Output 350mA 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
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*Quantity
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5.0 / 5.0
- (49 Ratings)
LM5008AMM/NOPB
Product Overview
1331690
DiGi Electronics Part Number
LM5008AMM/NOPB-DGManufacturer
Texas Instruments
LM5008AMM/NOPB
Description
IC REG BUCK ADJ 350MA 8VSSOPInventory
18940 Pcs New Original In Stock
Buck Switching Regulator IC Positive Adjustable 2.5V 1 Output 350mA 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Quantity
Minimum 1
Minimum 1
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LM5008AMM/NOPB Technical Specifications
Category
Power Management (PMIC), Voltage Regulators - DC DC Switching Regulators
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Function
Step-Down
Output Configuration
Positive
Topology
Buck
Output Type
Adjustable
Number of Outputs
1
Voltage - Input (Min)
6V
Voltage - Input (Max)
95V
Voltage - Output (Min/Fixed)
2.5V
Voltage - Output (Max)
75V
Current - Output
350mA
Frequency - Switching
50kHz ~ 1.1MHz
Synchronous Rectifier
No
Operating Temperature
-40°C ~ 125°C (TJ)
Mounting Type
Surface Mount
Package / Case
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package
8-VSSOP
Base Product Number
LM5008
Datasheet & Documents
Manufacturer Product Page
LM5008AMM/NOPB Specifications
HTML Datasheet
LM5008AMM/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
LM5008AMM/NOPBDKR-DG
LM5008AMM/NOPBCT
296-LM5008AMM/NOPBDKR
LM5008AMM/NOPBDKR
LM5008AMMTR
LM5008AMM/NOPBTR-DG
296-LM5008AMM/NOPBCT
-LM5008AMM-NDR
-LM5008AMM/NOPBCT
-LM5008AMM/NOPBCT-DG
LM5008AMMDKR-DG
LM5008AMM/NOPBTR
LM5008AMMNOPB
LM5008AMMTR-DG
LM5008AMM/NOPBCT-DG
LM5008AMMCT-DG
LM5008AMMCT
*LM5008AMM/NOPB
296-LM5008AMM/NOPBTR
-LM5008AMM/NOPB-NDR
LM5008AMMDKR
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
After-sales follow-up was proactive, ensuring I was satisfied with my purchase.
de desembre 02, 2025
Their post-purchase support team is diligent and always ready to assist.
de desembre 02, 2025
My order arrived promptly, and the eco-friendly packaging reassured me of their eco commitment.
de desembre 02, 2025
DiGi Electronics consistently delivers high-quality support post-purchase.
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Frequently Asked Questions (FAQ)
Can the LM5008AMM/NOPB replace an LM2596 in a 48V to 5V industrial power supply design, and what are the key trade-offs?
The LM5008AMM/NOPB is not a direct replacement for the LM2596 due to significant differences in current capability and topology. While both are buck regulators, the LM2596 supports up to 3A output current with an integrated switch, whereas the LM5008AMM/NOPB is limited to 350mA. Additionally, the LM5008AMM/NOPB operates at a much higher input voltage (up to 95V vs. 40V for the LM2596), making it better suited for high-voltage industrial applications like 48V systems. However, its lower current rating means you’d need parallel stages or a different regulator for higher loads. Also, the LM5008AMM/NOPB lacks synchronous rectification, resulting in lower efficiency at light loads—consider this if your application has variable load profiles.
What layout considerations are critical when designing a PCB with the LM5008AMM/NOPB to avoid instability or EMI issues in a 72V automotive application?
When using the LM5008AMM/NOPB in high-voltage environments like 72V automotive systems, proper PCB layout is essential to prevent oscillations and EMI. Keep the loop area between the input capacitor, IC, and inductor as small as possible to minimize parasitic inductance. Place the input ceramic capacitor (≥1µF, rated for >100V) within 5mm of the VIN and GND pins. Use a solid ground plane and avoid routing sensitive feedback traces near the switch node (SW pin). The feedback resistors should be placed close to the FB pin with a Kelvin connection to avoid noise pickup. Also, ensure adequate copper area on the SW node for thermal relief, but avoid creating antenna-like structures that radiate noise.
How does the LM5008AMM/NOPB compare to the LT8609S in terms of efficiency and thermal performance for a 24V to 3.3V, 300mA industrial sensor supply?
The LM5008AMM/NOPB and LT8609S serve similar roles but differ significantly in efficiency and thermal behavior. The LT8609S is a synchronous buck converter with much higher efficiency (often >90%) at light loads due to its Burst Mode operation, while the LM5008AMM/NOPB, being asynchronous, suffers from diode conduction losses, especially below 100mA. For a 24V to 3.3V, 300mA application, the LM5008AMM/NOPB may run hotter and require more careful thermal management. However, the LM5008AMM/NOPB supports a wider input range (up to 95V vs. 42V for LT8609S), making it preferable in high-voltage transient environments. If efficiency and thermal headroom are critical, the LT8609S is superior; if input voltage robustness is paramount, the LM5008AMM/NOPB is a better fit.
Is it safe to operate the LM5008AMM/NOPB continuously at 90V input and 300mA output without a heat sink, and what derating guidelines should be followed?
Operating the LM5008AMM/NOPB continuously at 90V input and 300mA output pushes it near its thermal limits, especially without a heat sink. At 90V input and 5V output, power dissipation can exceed 250mW due to switching and conduction losses. With a junction-to-ambient thermal resistance (θJA) of ~160°C/W in the 8-VSSOP package, this could result in a temperature rise of over 40°C above ambient—potentially exceeding safe operating limits in hot environments. TI recommends derating power dissipation above 70°C ambient. To mitigate risk, use a copper pour under the package, ensure adequate airflow, and consider lowering the input voltage if possible. For continuous high-voltage operation, evaluate adding a small heatsink or switching to a package with better thermal performance.
Can the LM5008AMM/NOPB be used in a battery-powered IoT device with a 12V lead-acid battery, and how does its quiescent current affect runtime?
Yes, the LM5008AMM/NOPB can be used with a 12V lead-acid battery in an IoT device, but its quiescent current (typically 10µA in shutdown, ~250µA in operation) must be carefully evaluated for battery life. While 250µA seems low, it becomes significant in always-on, low-duty-cycle applications. For example, in a sensor node waking every 10 minutes, the regulator’s idle current may dominate total consumption. Compare this to ultra-low-IQ alternatives like the TPS62840 (120nA IQ) or MAX17222 (350nA IQ), which offer much longer battery life. If your design cannot tolerate frequent battery changes, consider whether the LM5008AMM/NOPB’s higher IQ is acceptable—or if a more efficient, modern buck converter better aligns with your power budget, despite the LM5008AMM/NOPB’s advantage in input voltage range and ruggedness.
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LM5008AMM/NOPB CAD Models
Texas Instruments LM5008AMM/NOPB PCB symbols & footprints
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