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ZHCS539O September 2008 – November 2014 LM22673 , LM22673-Q1

PRODUCTION DATA.

封装选项

机械数据 (封装 | 引脚)

DDA|8
- MPDS092F
NDR|7
- MMSF023A

散热焊盘机械数据 (封装 | 引脚)

订购信息

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)

	MIN	MAX	UNIT
VIN to GND		43	V
SS, IADJ Pin Voltage	–0.5	7	V
SW to GND⁽¹⁾	–5	V_IN	V
Boot Pin Voltage		V_SW + 7	V
FB Pin Voltage	–0.5	7	V
Power Dissipation	Internally Limited
Junction Temperature		150	°C
For soldering specifications, refer to Application Report Absolute Maximum Ratings for Soldering (SNOA549).

6.2 Handling Ratings

			MIN	MAX	UNIT
T_stg	Storage temperature range		–65	150	°C
V_(ESD)	Electrostatic discharge	Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins⁽¹⁾	–2	2	V

(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

6.3 Handling Ratings: LM22673-Q1

				MIN	MAX	UNIT
T_stg	Storage temperature range			–65	150	°C
V_(ESD)	Electrostatic discharge	Human body model (HBM), per AEC Q100-002⁽¹⁾		–2	2	kV

(1) AEC Q100-002 indicates HBM stressing is done in accordance with the ANSI/ESDA/JEDEC JS-001 specification.

6.4 Recommended Operating Conditions

		MIN	MAX	UNIT
V_IN	Supply Voltage	4.5	42	V
	Junction Temperature	–40	125	°C

6.5 Thermal Information

THERMAL METRIC⁽¹⁾		LM22673		UNIT
		DDA	NDR
		8 PINS	7 PINS
R_θJA	Junction-to-ambient thermal resistance	60	22	°C/W

(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report (SPRA953).

6.6 Electrical Characteristics

Typical values represent the most likely parametric norm at T_A = T_J = 25°C, and are provided for reference purposes only. Unless otherwise specified: V_IN = 12 V.

PARAMETER		TEST CONDITIONS	MIN⁽³⁾	TYP⁽²⁾	MAX⁽³⁾	UNIT
LM22673-5.0
V_FB	Feedback Voltage	V_IN = 8 V to 42 V	4.925	5.0	5.075	V
V_FB	Feedback Voltage	V_IN = 8 V to 42 V, –40°C ≤ T_J ≤ 125°C	4.9		5.1	V
LM22673-ADJ
V_FB	Feedback Voltage	V_IN = 4.7 V to 42 V	1.266	1.285	1.304	V
V_FB	Feedback Voltage	V_IN = 4.7 V to 42 V, –40°C ≤ T_J ≤ 125°C	1.259		1.311	V
ALL OUTPUT VOLTAGE VERSIONS
I_Q	Quiescent Current	V_FB = 5 V		3.4		mA
I_Q	Quiescent Current	V_FB = 5 V, –40°C ≤ T_J ≤ 125°C			6	mA
V_ADJ	Current Limit Adjust Voltage			0.8		V
V_ADJ	Current Limit Adjust Voltage	–40°C ≤ T_J ≤ 125°C	0.65		0.9	V
I_CL	Current Limit		3.4	4.2	5.3	A
I_CL	Current Limit	–40°C ≤ T_J ≤ 125°C	3.35		5.5	A
R_DS(ON)	Switch On-Resistance	PFM Package		0.12	0.16	Ω
		PFM Package, –40°C ≤ T_J ≤ 125°C			0.22
		SO PowerPAD Package		0.10	0.16
		SO PowerPAD Package, –40°C ≤ T_J ≤ 125°C			0.20
f_O	Oscillator Frequency			500		kHz
f_O	Oscillator Frequency	–40°C ≤ T_J ≤ 125°C	400		600	kHz
T_OFFMIN	Minimum Off-time			200		ns
T_OFFMIN	Minimum Off-time	–40°C ≤ T_J ≤ 125°C	100		300	ns
T_ONMIN	Minimum On-time			100		ns
I_BIAS	Feedback Bias Current	V_FB = 1.3 V (ADJ Version Only)		230		nA
I_SS	Soft-start Current	EN Input = 0 V		50		µA
I_SS	Soft-start Current	EN Input = 0 V, –40°C ≤ T_J ≤ 125°C	30		70	µA
T_SD	Thermal Shutdown Threshold			150		°C

(1) The absolute maximum specification of the ‘SW to GND’ applies to dc voltage. An extended negative voltage limit of –10 V applies to a pulse of up to 50 ns.

(2) Typical values represent most likely parametric norms at the conditions specified and are not ensured.

(3) MIN and MAX limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate TI's Average Outgoing Quality Level (AOQL).