SLVS638D Data sheet

SLVS638D January 2006 – June 2022

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6.5 Electrical Characteristics — TL2575

I_LOAD = 200 mA, V_IN = 12 V for 3.3-V, 5-V, and adjustable versions, V_IN = 25 V for 12-V version, V_IN = 30 V for 15-V version (unless otherwise noted) (see Figure 7-1)

PARAMETER			TEST CONDITIONS	T_J	TL2575			UNIT
PARAMETER			TEST CONDITIONS	T_J	MIN	TYP	MAX	UNIT
V_OUT	Output voltage	TL2575-33	V_IN = 12 V, I_LOAD = 0.2 A	25°C	3.234	3.3	3.366	V
			4.75 V ≤ V_IN ≤ 40 V, 0.2 A ≤ I_LOAD ≤ 1 A	25°C	3.168	3.3	3.432
			4.75 V ≤ V_IN ≤ 40 V, 0.2 A ≤ I_LOAD ≤ 1 A	Full range	3.135		3.465
		TL2575-05	V_IN = 12 V, I_LOAD = 0.2 A	25°C	4.9	5	5.1
			8 V ≤ V_IN ≤ 40 V, 0.2 A ≤ I_LOAD ≤ 1 A	25°C	4.8	5	5.2
			8 V ≤ V_IN ≤ 40 V, 0.2 A ≤ I_LOAD ≤ 1 A	Full range	4.75		5.25
		TL2575-12	V_IN = 25 V, I_LOAD = 0.2 A	25°C	11.76	12	12.24
			15 V ≤ V_IN ≤ 40 V, 0.2 A ≤ I_LOAD ≤ 1 A	25°C	11.52	12	12.48
			15 V ≤ V_IN ≤ 40 V, 0.2 A ≤ I_LOAD ≤ 1 A	Full range	11.4		12.6
		TL2575-15	V_IN = 30 V, I_LOAD = 0.2 A	25°C	14.7	15	15.3
			18 V ≤ V_IN ≤ 40 V, 0.2 A ≤ I_LOAD ≤ 1 A	25°C	14.4	15	15.6
			18 V ≤ V_IN ≤ 40 V, 0.2 A ≤ I_LOAD ≤ 1 A	Full range	14.25	15	15.75
	Feedback voltage	TL2575-ADJ	V_IN = 12 V, V_OUT = 5 V, I_LOAD = 0.2 A	25°C	1.217	1.23	1.243	V
			8 V ≤ V_IN ≤ 40 V, V_OUT = 5 V, 0.2 A ≤ I_LOAD ≤ 1 A	25°C	1.193	1.23	1.267
			8 V ≤ V_IN ≤ 40 V, V_OUT = 5 V, 0.2 A ≤ I_LOAD ≤ 1 A	Full range	1.18		1.28
η	Efficiency	TL2575-33	V_IN = 12 V, I_LOAD = 1 A	25°C		75%
		TL2575-05	V_IN = 12 V, I_LOAD = 1 A			77%
		TL2575-12	V_IN = 15 V, I_LOAD = 1 A			88%
		TL2575-15	V_IN = 18 V, I_LOAD = 1 A			88%
		TL2575-ADJ	V_IN = 12 V, V_OUT = 5 V, I_LOAD = 1 A			77%
I_IB	Feedback bias current		V_OUT = 5 V (ADJ version only)	25°C		50	100	nA
I_IB	Feedback bias current		V_OUT = 5 V (ADJ version only)	Full range			500	nA
f_o	Oscillator frequency⁽¹⁾			25°C	47	52	58	kHz
f_o	Oscillator frequency⁽¹⁾			Full range	42		63	kHz
V_SAT	Saturation voltage		I_OUT = 1 A⁽²⁾	25°C		0.9	1.2	V
V_SAT	Saturation voltage		I_OUT = 1 A⁽²⁾	Full range			1.4	V
	Maximum duty cycle⁽³⁾			25°C	93%	98%
I_CL	Switch peak current⁽¹⁾⁽²⁾			25°C	1.7	2.8	3.6	A
I_CL	Switch peak current⁽¹⁾⁽²⁾			Full range	1.3		4	A
I_L	Output leakage current		V_IN = 40⁽⁴⁾, Output = 0 V	25°C			2	mA
I_L	Output leakage current		V_IN = 40⁽⁴⁾, Output = –1 V	25°C		7.5	30	mA
I_Q	Quiescent current⁽⁴⁾			25°C		5	10	mA
I_STBY	Standby quiescent current		OFF (ON/OFF = 5 V)	25°C		50	200	μA
V_IH	ON/OFF high-level logic input voltage		OFF (V_OUT = 0 V)	25°C	2.2	1.4		V
V_IH	ON/OFF high-level logic input voltage		OFF (V_OUT = 0 V)	Full range	2.4			V
V_IL	ON/OFF low-level logic input voltage		ON (V_OUT = nominal voltage)	25°C		1.2	1	V
V_IL	ON/OFF low-level logic input voltage		ON (V_OUT = nominal voltage)	Full range			0.8	V
I_IH	ON/OFF high-level input current		OFF (ON/OFF = 5 V)	25°C		12	30	μA
I_IL	ON/OFF low-level input current		ON (ON/OFF = 0 V)	25°C		0	10	μA

(1) In the event of an output short or an overload condition, self-protection features lower the oscillator frequency to ≈18 kHz and the minimum duty cycle from 5% to ≈2%. The resulting output voltage drops to ≈40% of its nominal value, causing the average power dissipated by the IC to lower.

(2) Output is not connected to diode, inductor, or capacitor. Output is sourcing current.

(3) FEEDBACK is disconnected from output and connected to 0 V.

(4) To force the output transistor off, FEEDBACK is disconnected from output and connected to 12 V for the adjustable, 3.3-V, and 5-V versions and to 25 V for the 12-V and 15-V versions.

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6.5 Electrical Characteristics — TL2575