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ZHCSD24B October 2014 – June 2024 TPS61169

PRODUCTION DATA

5.5 Electrical Characteristics

Over operating free-air temperature range, V_IN = 3.6V, CTRL = V_IN (unless otherwise specified).

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
POWER SUPPLY
V_IN	Input voltage range		2.7		5.5	V
V_{VIN_UVLO}	Undervoltage lockout threshold	V_IN falling V_IN rising		2	2.3 2.6	V
V_{VIN_HYS}	V_IN UVLO hysteresis			200		mV
I_{Q_VIN}	Operating quiescent current into V_IN	Device enable, switching 1.2MHz and no load,		0.3	0.45	mA
I_SD	Shutdown current	CTRL = GND		1	2	µA
CONTROL LOGIC AND TIMING
V_H	CTRL Logic high voltage		1.2			V
V_L	CTRL Logic Low voltage				0.4	V
R_PD	CTRL pin internal pull-down resistor			300		KΩ
t_SD	CTRL logic low time to shutdown	CTRL high to low			2.5	ms
VOLTAGE AND CURRENT REGULATION
V_REF	Voltage feedback regulation voltage	Duty = 100%, T_A ≥ 25°C	188	204	220	mV
I_FB	FB pin bias current	V_FB = 204mV			2.5	µA
t_REF	V_REF filter time constant			1		ms
POWER SWITCH
R_DS(ON)	N-channel MOSFET on-resistance			0.35	0.7	Ω
I_{LN_NFET}	N-channel leakage current	V_SW = 35V			1	µA
SWITCHING FREQUENCY
ƒ_SW	Switching frequency	V_IN = 3V	0.75	1.2	1.5	MHz
PROTECTION AND SOFT START
I_LIM	Switching MOSFET current limit	D = D_MAX , T_A ≤ 85°C	1.2	1.8	2.4	A
I_{LIM_Start}	Switching MOSFET start-up current limit	T_A ≤ 85°C		0.72		A
t_{Half_LIM}	Time step for half current limit			6.5		ms
V_{OVP_SW}	Output voltage overvoltage threshold		36	37.5	39	V
THERMAL SHUTDOWN
T_shutdown	Thermal shutdown threshold			160		°C
T_hys	Thermal shutdown hysteresis			15		°C