LM5017MRX/NOPB

ActiveVoltage Regulators - DC DC Switching RegulatorsSO PowerPAD

IC REG BUCK ADJ 600MA 8SOPWR

LM5017MRX/NOPB is a 100-V, 600-mA synchronous buck regulator in SO PowerPAD-8 package, with 7.5 V to 100 V input range, constant on-time control, and thermal shutdown protection.Checked against the datasheet

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Technical parameters

Key specs

Input voltage7.5 ~ 100 V

Output voltage1.225 ~ 90 V

Output current600 mAMax

Switching frequency1 MHz

Datasheet-verified parameters

23 items

Parameter	Value and test conditions	Source
Input voltage range	7.5 V to 100 V
Output current	600 mA
Package	SO PowerPAD (DDA) 8-Pin
Operating temperature	-40°C to 125°C
RoHS	Yes
Recommended operating input voltage	Min: 7.5 V, Max: 100 V
Absolute maximum input voltage	Min: -0.3 V, Max: 100 V (VIN, UVLO to RTN)
Feedback reference voltage	Min: 1.2 V, Typ: 1.225 V, Max: 1.25 V
VCC regulator output voltage	Min: 6.25 V, Typ: 7.6 V, Max: 8.55 V (VIN=48 V, ICC=20 mA)
Operating current	Typ: 1.75 mA (Non-switching, VFB=3 V)
Shutdown current	Typ: 50 μA, Max: 225 μA (VUVLO=0 V)
High-side switch on-resistance	Typ: 0.8 Ω, Max: 1.8 Ω (ITEST=200 mA, VBST-VSW=7 V)
Low-side switch on-resistance	Typ: 0.45 Ω, Max: 1 Ω (ITEST=200 mA)
Current limit threshold	Min: 0.7 A, Typ: 1.02 A, Max: 1.3 A (-40°C ≤ TJ ≤ 125°C)
Thermal shutdown temperature	Max: 165°C
UVLO threshold	Min: 1.19 V, Typ: 1.225 V, Max: 1.26 V (Voltage at UVLO rising)
Remote shutdown threshold	Min: 0.32 V, Typ: 0.66 V (Voltage at UVLO falling)
Maximum junction temperature	Max: 150°C
Storage temperature	Min: -55°C, Max: 150°C
ESD Human-body model	±2000 V
ESD Charged-device model	±750 V
VCC undervoltage lockout voltage	Min: 4.15 V, Typ: 4.5 V, Max: 4.9 V (-40°C ≤ TJ ≤ 125°C)
Gate drive UVLO	Min: 2.4 V, Typ: 3 V, Max: 3.6 V (VBST-VSW rising)

All parameters (21)ExpandCollapse

Power
Current - Output	600mA
Voltage - Input (Max)	100V
Voltage - Input (Min)	7.5V
Voltage - Output (Max)	90V
Voltage - Output (Min/Fixed)	1.225V
AC and DC characteristics
Frequency - Switching	Adj to 1MHz
Environment and package
Mounting Type	Surface Mount
Operating Temperature	-40°C~125°C(TJ)
Package	Tape & Reel (TR); Cut Tape (CT); Digi-Reel®
Package / Case	8-PowerSOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SO PowerPad
Other
Base Product Number	LM5017
Function	Step-Down
Mfr	Texas Instruments
Number of Outputs	1
Output Configuration	Positive
Output Type	Adjustable
Product Status	Active
Series	-
Synchronous Rectifier	Yes
Topology	Buck

Pinout and package

Figure 5-1. DDA Package 8-Pin … — Package: **SO PowerPAD (DDA) 8-Pin**

Pin	Name	Function	Source
1		RTN, Ground connection
2		VIN, Input voltage
3		UVLO, Undervoltage comparator input
4		RON, On-time control
5		FB, Feedback
6		VCC, Output from the internal high-voltage series pass regulator
7		BST, Bootstrap capacitor
8		SW, Switching node
EP		EP, Exposed Pad, must be connected to the RTN pin

Documents

DatasheetDatasheet · 2.2 MB · 2026-11-02

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