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ZHCSHM2D June 2018 – April 2025 TPS746-Q1

PRODUCTION DATA

封裝選項

機械數據 (封裝 | 引腳)

DRB|8
- MPDS118K
DRV|6
- MPDS216E

散熱焊盤機械數據 (封裝 | 引腳)

DRB|8
- QFND619
DRV|6
- QFND651

訂購信息

5.5 Electrical Characteristics

at operating temperature range (T_J = –40°C to +150°C), V_IN = V_OUT(NOM) + 0.5 V or 1.5 V (whichever is greater), I_OUT = 1 mA, V_EN = V_IN, and C_IN = C_OUT = 1 μF (unless otherwise noted); all typical values at T_J = 25°C

PARAMETER		TEST CONDITIONS		MIN	TYP	MAX	UNIT
V_FB	Feedback voltage				0.55		V
	Output accuracy⁽¹⁾	T_J = 25°C		–0.85%		0.85%
		-40°C ≤ T_J ≤ 85°C		–1.00%		1.00%
		-40°C ≤ T_J ≤ 150°C		–1.50%		1.50%
	Line regulation	V_OUT(NOM) + 0.5 V⁽²⁾ ≤ V_I_N ≤ 6.0 V			2	7.5	mV
	Load regulation	0.1 mA ≤ I_OUT ≤ 1 A, V_IN ≥ 2.0 V			0.030		V/A
I_GND	Ground current	I_OUT = 0 mA	T_J = 25°C		25	32	μA
I_GND	Ground current	I_OUT = 0 mA	-40°C ≤ T_J ≤ 150°C		25	36	μA
I_SHDN	Shutdown current	V_EN ≤ 0.3 V, 1.5 V ≤ V_IN ≤ 6.0 V	-40°C ≤ T_J ≤ 125°C		0.1	1	μA
I_SHDN	Shutdown current	V_EN ≤ 0.3 V, 1.5 V ≤ V_IN ≤ 6.0 V	-40°C ≤ T_J ≤ 150°C		0.1	1.55	μA
I_FB	Feedback pin current	Adjustable only			0.01	0.1	μA
I_CL	Output current limit	V_OUT(NOM) < 1 V, V_OUT = V_OUT(NOM) - 0.2 V, V_IN = 2.0 V		1.22	1.5	1.83	A
I_CL	Output current limit	V_OUT(NOM) ≥ 1 V, V_OUT = V_OUT(NOM) × 0.85, V_IN = V_OUT(NOM) + 1.0 V		1.22	1.5	1.83	A
I_SC	Short-circuit current limit	V_OUT = 0 V	V_OUT(NOM) < 1 V, V_IN = 2.0 V	500	680	850	mA
I_SC	Short-circuit current limit	V_OUT = 0 V	V_OUT(NOM) ≥ 1 V, V_IN = V_OUT(NOM) + 1.0 V	500	680	850	mA
V_DO	Dropout voltage	I_OUT = 1 A, V_OUT = 0.95 x V_OUT(NOM)	0.65 V ≤ V_OUT < 0.8 V⁽³⁾		895	1090	mV
			0.8 V ≤ V_OUT < 0.9 V		765	960
			0.9 V ≤ V_OUT < 1.0 V		700	890
			1.0 V ≤ V_OUT < 1.2 V		600	790
			1.2 V ≤ V_OUT < 1.5 V		465	625
			1.5 V ≤ V_OUT < 1.8 V		335	480
			1.8 V ≤ V_OUT < 2.5 V		265	400
			2.5 V ≤ V_OUT < 3.3 V		195	310
			3.3 V ≤ V_OUT ≤ 5.5 V		160	265
PSRR	Power-supply rejection ratio	V_OUT = 1.8 V, V_IN = 2.8 V, I_OUT = 1 A, C_OUT = 2.2 μF	f = 1 kHz		53		dB
			f = 100 kHz		38
			f = 1 MHz		30
V_N	Output noise voltage	BW = 10 Hz to 100 kHz, V_OUT = 0.9 V, V_IN = 1.9 V			53		μV_RMS
V_UVLO	Undervoltage lockout	V_IN rising		1.21	1.33	1.47	V
V_UVLO	Undervoltage lockout	V_IN falling		1.17	1.29	1.42	V
V_UVLO,HYST	Undervoltage lockout hysteresis	V_IN hysteresis			40		mV
t_STR	Startup time	From EN low-to-high transition to V_OUT = V_OUT(NOM) x 95%		200	500	650	μs
V_HI	EN pin high voltage (enabled)			1.0			V
V_LO	EN pin low voltage (disabled)					0.3	V
V_LO	EN pin low voltage (disabled)	TPS74601PQWDRBRQ1 only				0.4	V
I_EN	Enable pin current	V_IN = V_EN = 6.0 V			10		nA
R_PULLDOWN	Pulldown resistance	V_IN = 6.0 V			95		Ω
PG_HTH	PG high threshold	V_OUT increasing		89	92	96	%V_OUT
PG_LTH	PG low threshold	V_OUT decreasing		86	90	93	%V_OUT
PG_HYST	PG hysteresis				2		%V_OUT
V_OL(PG)	PG pin low-level output voltage	V_IN ≥ 1.5 V, I_SINK = 1 mA				300	mV
V_OL(PG)	PG pin low-level output voltage	V_IN ≥ 2.75 V, I_SINK = 2 mA				300	mV
V_OH(PG)	PG pin high-level output voltage⁽⁴⁾	V_OUT ≥ 1.0 V, I_SOURCE = 0.04 mA		0.8 × V_OUT			V
		V_OUT ≥ 1.4 V, I_SOURCE = 0.2 mA
		V_OUT ≥ 2.5 V, I_SOURCE = 0.5 mA
		V_OUT ≥ 4.5 V, I_SOURCE = 1.0 mA
I_lkg(PG)	PG pin leakage current⁽⁵⁾	V_OUT > PG_HTH, V_PG = 6.0 V			7	50	nA
T_SD	Thermal shutdown	Shutdown, temperature increasing			170		°C
T_SD	Thermal shutdown	Reset, temperature decreasing			155		°C

(1) When the device is connected to external feedback resistors at the FB pin, external resistor tolerances are not included.

(2) V_IN = 1.5V for V_OUT < 1.0 V

(3) Dropout is not tested for nominal output voltages below 0.65 V since the input voltage may be below UVLO.

(4) Push-pull version only. The push-pull option is supported only for V_OUT ≥ 1.0 V.

(5) Open-drain version only.