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SNVS153F May 2001 – September 2016 LM2698

PRODUCTION DATA.

封裝選項

機械數據 (封裝 | 引腳)

DGK|8
- MPDS028E

散熱焊盤機械數據 (封裝 | 引腳)

訂購信息

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)⁽¹⁾

	MIN	MAX	UNIT
V_IN	–0.3	12	V
SW voltage	–0.3	18	V
FB voltage	–0.3	7	V
V_C voltage	0.965	1.565	V
SHDN voltage⁽²⁾	–0.3	7	V
FSLCT⁽²⁾	–0.3	12	V
Power dissipation⁽³⁾	Internally limited		°C
Lead temperature		300	°C
Vapor phase temperature (60 s)		215	°C
Infrared temperature (15 s)		220	°C
Junction temperature, T_J		150	°C
Storage temperature, T_stg	–65	150	°C

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2) Shutdown and voltage frequency select must not exceed V_IN.

(3) The maximum allowable power dissipation is a function of the maximum junction temperature, T_J(MAX), the junction-to-ambient thermal resistance, θ_JA, and the ambient temperature, T_A. See the Electrical Characteristics for the thermal resistance of various layouts. The maximum allowable power dissipation at any ambient temperature is calculated using P_D (MAX) = (T_J(MAX) – T_A) / θ_JA. Exceeding the maximum allowable power dissipation causes excessive die temperature, and the regulator goes into thermal shutdown.

6.2 ESD Ratings

			VALUE	UNIT
V_(ESD)	Electrostatic discharge	Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001⁽¹⁾	±2000	V
V_(ESD)	Electrostatic discharge	Charged-device model (CDM), per JEDEC specification JESD22-C101⁽²⁾	±200	V

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

(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions

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

	MIN	MAX	UNIT
Supply voltage	2.2	12	V
SW voltage	0	17.5	V
Operating junction temperature⁽¹⁾	–40	125	°C

(1) All limits are specified at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are 100% tested or specified through statistical analysis. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

6.4 Thermal Information

THERMAL METRIC⁽¹⁾		LM2698	UNIT
		DGK (VSSOP)
		8 PINS
R_θJA	Junction-to-ambient thermal resistance	142.5	°C/W
R_θJC(top)	Junction-to-case (top) thermal resistance	49.7	°C/W
R_θJB	Junction-to-board thermal resistance	69.5	°C/W
ψ_JT	Junction-to-top characterization parameter	4	°C/W
ψ_JB	Junction-to-board characterization parameter	67.8	°C/W
R_θJC(bot)	Junction-to-case (bottom) thermal resistance	—	°C/W

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

6.5 Electrical Characteristics

T_J = 25°C, V_IN =2.2 V, and I_L = 0 A (unless otherwise noted)

PARAMETER		TEST CONDITIONS		MIN⁽¹⁾	TYP⁽²⁾	MAX⁽¹⁾	UNIT
I_Q	Quiescent current	FB = 0 V (not switching)	T_J = 25°C		1.3		mA
		FB = 0 V (not switching)	T_J = –40°C to 125°C			2	mA
		V_SHDN = 0 V	T_J = 25°C		5		µA
		V_SHDN = 0 V	T_J = –40°C to 125°C			10	µA
V_FB	Feedback voltage	T_J = 25°C			1.26		V
V_FB	Feedback voltage	T_J = –40°C to 125°C		1.23		1.29	V
I_CL	Switch current limit	V_IN = 2.7 V⁽³⁾	T_J = 25°C		1.9		A
I_CL	Switch current limit	V_IN = 2.7 V⁽³⁾	T_J = –40°C to 125°C	1.35		2.4	A
%V_FB/ΔV_IN	Feedback voltage line regulation	2.2 V ≤ V_IN ≤ 12 V	T_J = 25°C		0.013%		V
%V_FB/ΔV_IN	Feedback voltage line regulation	2.2 V ≤ V_IN ≤ 12 V	T_J = –40°C to 125°C			0.1%	V
I_B	FB pin bias current⁽⁴⁾	T_J = 25°C			0.5		nA
I_B	FB pin bias current⁽⁴⁾	T_J = –40°C to 125°C				20	nA
V_IN	Input voltage range	T_J = –40°C to 125°C		2.2		12	V
g_m	Error amp transconductance	ΔI = 5 µA	T_J = 25°C		135		µmho
g_m	Error amp transconductance	ΔI = 5 µA	T_J = –40°C to 125°C	40		290	µmho
A_V	Error amp voltage gain				120		V/V
D_MAX	Maximum duty cycle	FSLCT = Ground	T_J = 25°C		85%
D_MAX	Maximum duty cycle	FSLCT = Ground	T_J = –40°C to 125°C	78%
D_MIN	Minimum duty cycle	FSLCT = Ground			15%
D_MIN	Minimum duty cycle	FSLCT = V_IN			30%
f_S	Switching frequency	FSLCT = Ground	T_J = 25°C		600		kHz
		FSLCT = Ground	T_J = –40°C to 125°C	480		720	kHz
		FSLCT = V_IN	T_J = 25°C		1.25		MHz
		FSLCT = V_IN	T_J = –40°C to 125°C	1		1.5	MHz
I_SHDN	Shutdown pin current	V_SHDN = V_IN	T_J = 25°C		0.01		µA
		V_SHDN = V_IN	T_J = –40°C to 125°C			0.1
		V_SHDN = 0 V	T_J = 25°C		–0.5
		V_SHDN = 0 V	T_J = –40°C to 125°C			–1
I_L	Switch leakage current	V_SW = 18 V	T_J = 25°C		0.01		µA
I_L	Switch leakage current	V_SW = 18 V	T_J = –40°C to 125°C			3	µA
R_DS(ON)	Switch R_DS(ON)	V_IN = 2.7 V, I_SW = 1 A	T_J = 25°C		0.2		Ω
R_DS(ON)	Switch R_DS(ON)	V_IN = 2.7 V, I_SW = 1 A	T_J = –40°C to 125°C			0.4	Ω
TH_SHDN	SHDN threshold voltage	Output high	T_J = 25°C		0.6		V
		Output high	T_J = –40°C to 125°C			0.9
		Output low	T_J = 25°C		0.6
		Output low	T_J = –40°C to 125°C	0.3
UVP	On threshold	T_J = 25°C			2.05		V
	On threshold	T_J = –40°C to 125°C		1.95		2.2	V
	Off threshold	T_J = 25°C			1.95		V
	Off threshold	T_J = –40°C to 125°C		1.85		2.1	V

(1) All limits are specified at room temperature and at temperature extremes. All room temperature limits are 100% tested or specified through statistical analysis. All limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).

(2) Typical numbers are at 25°C and represent the most likely norm.

(3) This is the switch current limit at 0% duty cycle. The switch current limit changes as a function of duty cycle. See Typical Characteristics for I_CL vs V_IN.

(4) Bias current flows into FB pin.