SLUSF98 Data sheet

SLUSF98 November 2024 TPSM84338

PRODUCTION DATA

Package Options

Mechanical Data (Package|Pins)

RCJ|9
- MPQF722A

Thermal pad, mechanical data (Package|Pins)

Orderable Information

slusf98_oa

5.5 Electrical Characteristics

The electrical ratings specified in this section apply to all specifications in this document, unless otherwise noted. These specifications are interpreted as conditions that do not degrade the device parametric or functional specifications for the life of the product. Typical values correspond to T_J = 25°C, V_IN = 12V. Minimum and maximum limits are based on T_J = –40°C to +125°C, V_IN = 3.8V to 28V, unless otherwise noted.

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
POWER SUPPLY (VIN PIN)
V_IN	Operation input voltage		3.8		28	V
I_Q	Nonswitching quiescent current	EN = 5V, V_FB = 0.65V, V_IN = 12V, PFM		28	34	µA
I_Q	Nonswitching quiescent current	EN = 5V, V_FB = 0.65V, V_IN = 12V, FCCM		40	47	µA
I_SHDN	Shutdown supply current	V_EN = 0V, V_IN = 12V		3	5.5	µA
V_{IN_UVLO}	Input undervoltage lockout thresholds	Rising threshold	3.4	3.6	3.8	V
		Falling threshold	3.2	3.4	3.6	V
		Hysteresis		200		mV
ENABLE (EN PIN)
V_{EN_RISE}	Enable threshold	Rising enable threshold		1.15	1.22	V
V_{EN_FALL}	Disable threshold	Falling disable threshold	0.9	1		V
I_p	EN pullup current	V_EN = 1.0V		0.7		µA
I_h	EN pullup hysteresis current			1.76		µA
VOLTAGE REFERENCE (FB PIN)
V_FB	FB voltage	T_J = 25°C	596	600	604	mV
		T_J = 0°C to 85°C	595	600	605	mV
		T_J = –40°C to 125°C	594	600	606	mV
I_FB	Input leakage current	V_IN = 12V, V_FB = 0.8V, T_J = 25°C			0.1	μA
CURRENT LIMIT
I_{HS_LIMIT}	High-side MOSFET current limit	V_IN = 12V	5.6	6.5	7.4	A
I_{LS_LIMIT}	Low-side MOSFET current limit	V_IN = 12V	3.6	4.5	5.6	A
I_{LS_NOC}	Reverse current limit	V_IN = 12V	2	3	4.2	A
I_{PEAK_MIN}	Minimum peak inductor current	V_IN = 12V		1.2		A
SOFT START (SS PIN)
I_SS	Soft-start charge current		3.5	5.5	6.5	μA
T_SS	Fixed internal soft-start time	Mode with PG function. Time from 0%V_out-90%V_out		3.6		ms
POWER GOOD (PG PIN)
V_PGTH	PG threshold, V_FB percentage	V_FB falling, PG high to low		85%
		V_FB rising, PG low to high		90%
		V_FB falling, PG low to high		107%
		V_FB rising, PG high to low		115%
T_{PG_R}	PG delay time	PG from low to high		70		μs
T_{PG_F}	PG delay time	PG from high to low		13		μs
V_{IN_PG_VALID}	Minimum V_IN for valid PG output	Measured when PG < 0.5V with 100kΩ pullup to external 5V		2	2.5	V
V_{PG_OL}	PG output low-level voltage	I_PG = 0.5mA			0.3	V
I_{PG_LK}	PG leakage current when open drain is high	V_PG = 5.5V	–1		1	μA
OSCILLATOR FREQUENCY (RT PIN)
f_SW	Switching center frequency	RT = floating	450	500	550	kHz
f_SW	Switching center frequency	RT = GND	870	1000	1130	kHz
V_{SYNC_HI}	SYNC clock high level threshold		1.7			V
V_{SYNC_LO}	SYNC clock low level threshold				0.9	V
t_{ON_MIN}⁽¹⁾	Minimum ON pulse width			70		ns
t_{OFF_MIN}⁽¹⁾	Minimum OFF pulse width			114		ns
t_{ON_MAX}⁽¹⁾	Maximum ON pulse width			8		μs
OUTPUT OVERVOLTAGE AND UNDERVOLTAGE PROTECTION
V_OVP	Output OVP threshold	OVP detect (L→H)	112%	115%	118%
V_OVP	Output OVP threshold	Hysteresis		8%
V_UVP	Output UVP threshold	UVP detect (H→L)		65%
V_UVP	Output UVP threshold	Hysteresis		6%
t_{hiccup_ON}	UV hiccup ON time before entering hiccup mode after soft start ends			256		μs
t_{hiccup_OFF}	UV hiccup OFF time before restart			9.8		cycles
THERMAL SHUTDOWN
T_SHDN⁽¹⁾	Thermal shutdown threshold	Shutdown temperature		165		°C
T_HYS⁽¹⁾		Hysteresis		30		°C
SPREAD SPECTRUM FREQUENCY
f_m⁽¹⁾	Modulation frequency			10		kHz
f_spread	Internal spread oscillator frequency			±8%

(1) Not production tested, specified by design.