SLVS582I Data sheet

SLVS582I April 2006 – November 2014 LP2950 , LP2951

PRODUCTION DATA.

Package Options

Mechanical Data (Package|Pins)

D|8
- MSOI002K
DRG|8
- MPDS151B

Thermal pad, mechanical data (Package|Pins)

DRG|8
- QFND084H

Orderable Information

6 Specifications

6.1 Absolute Maximum Ratings

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

		MIN	MAX	UNIT
V_IN	Continuous input voltage range	–0.3	30	V
V_SHDN	SHUTDOWN input voltage range	–1.5	30	V
V_ERROR	ERROR comparator output voltage range⁽²⁾	–1.5	30	V
V_FDBK	FEEDBACK input voltage range⁽²⁾⁽³⁾	–1.5	30	V

(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) May exceed input supply voltage

(3) If load is returned to a negative power supply, the output must be diode clamped to GND.

6.2 Handling Ratings

			MIN	MAX	UNIT
T_stg	Storage temperature range		–65	150	°C
V_(ESD)	Electrostatic discharge	Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins⁽¹⁾	0	2500	V
V_(ESD)	Electrostatic discharge	Charged device model (CDM), per JEDEC specification JESD22-C101, all pins⁽²⁾	0	1000	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

		MIN	MAX	UNIT
V_IN	Supply input voltage	See ⁽¹⁾	30	V
T_J	Operating virtual junction temperature	–40	125	°C

(1) Minimum V_IN is the greater of:

2 V (25°C), 2.3 V (over temperature), or
V_OUT(MAX) + Dropout (Max) at rated I_L

6.4 Thermal Information

THERMAL METRIC⁽¹⁾		LP2950	LP2951			UNIT
		LP	D	P	DRG
		3 PINS	8 PINS
R_θJA	Junction-to-ambient thermal resistance	140	97	84.6	52.44	°C/W

(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report (SPRA953).

6.5 Electrical Characteristics

V_IN = V_OUT (nominal) + 1 V, I_L = 100 μA, C_L = 1 μF (5-V versions) or C_L = 2.2 μF (3-V and 3.3-V versions),
8-pin version: FEEDBACK tied to V_TAP, OUTPUT tied to SENSE, V_SHUTDOWN ≤ 0.7 V

PARAMETER		TEST CONDITIONS	T_J	MIN	TYP	MAX	UNIT
3-V VERSION (LP295x-30)
V_OUT	Output voltage	I_L = 100 μA	25°C	2.970	3	3.030	V
V_OUT	Output voltage	I_L = 100 μA	–40°C to 125°C	2.940	3	3.060	V
3.3-V VERSION (LP295x-33)
V_OUT	Output voltage	I_L = 100 μA	25°C	3.267	3.3	3.333	V
V_OUT	Output voltage	I_L = 100 μA	–40°C to 125°C	3.234	3.3	3.366	V
5-V VERSION (LP295x-50)
V_OUT	Output voltage	I_L = 100 μA	25°C	4.950	5	5.050	V
V_OUT	Output voltage	I_L = 100 μA	–40°C to 125°C	4.900	5	5.100	V
ALL VOLTAGE OPTIONS
	Output voltage temperature coefficient⁽¹⁾	I_L = 100 μA	–40°C to 125°C		20	100	ppm/°C
	Line regulation⁽²⁾	V_IN = [V_OUT(NOM) + 1 V] to 30 V	25°C		0.03	0.2	%/V
	Line regulation⁽²⁾	V_IN = [V_OUT(NOM) + 1 V] to 30 V	–40°C to 125°C			0.4	%/V
	Load regulation⁽²⁾	I_L = 100 μA to 100 mA	25°C		0.04%	0.2%	—
	Load regulation⁽²⁾	I_L = 100 μA to 100 mA	–40°C to 125°C			0.3%	—
V_IN – V_OUT	Dropout voltage⁽³⁾	I_L = 100 μA	25°C		50	80	mV
		I_L = 100 μA	–40°C to 125°C			150
		I_L = 100 mA	25°C		380	450
		I_L = 100 mA	–40°C to 125°C			600
I_GND	GND current	I_L = 100 μA	25°C		75	120	μA
		I_L = 100 μA	–40°C to 125°C			140	μA
		I_L = 100 mA	25°C		8	12	mA
		I_L = 100 mA	–40°C to 125°C			14	mA
	Dropout ground current	V_IN = V_OUT(NOM) – 0.5 V, I_L = 100 μA	25°C		110	170	μA
	Dropout ground current	V_IN = V_OUT(NOM) – 0.5 V, I_L = 100 μA	–40°C to 125°C			200	μA
	Current limit	V_OUT = 0 V	25°C		160	200	mA
	Current limit	V_OUT = 0 V	–40°C to 125°C			220	mA
	Thermal regulation⁽⁴⁾	I_L = 100 μA	25°C		0.05	0.2	%/W
	Output noise (RMS), 10 Hz to 100 kHz	C_L = 1 μF (5 V only)	25°C		430		μV
		C_L = 200 μF			160
		LP2951-50: C_L = 3.3 μF, C_Bypass = 0.01 μF between pins 1 and 7			100
(LP2951-xx) 8-PIN VERSION ONLY ADJ
	Reference voltage		25°C	1.218	1.235	1.252	V
			–40°C to 125°C	1.212		1.257
		V_OUT = V_REF to (V_IN – 1 V), V_IN = 2.3 V to 30 V, I_L = 100 μA to 100 mA	–40°C to 125°C	1.200		1.272
	Reference voltage temperature coefficient⁽¹⁾		25°C		20		ppm/°C
	FEEDBACK bias current		25°C		20	40	nA
	FEEDBACK bias current		–40°C to 125°C			60	nA
	FEEDBACK bias current temperature coefficient		25°C		0.1		nA/°C
ERROR COMPARATOR
	Output leakage current	V_OUT = 30 V	25°C		0.01	1	μA
	Output leakage current	V_OUT = 30 V	–40°C to 125°C			2	μA
	Output low voltage	V_IN = V_OUT(NOM) – 0.5 V, I_OL = 400 μA	25°C		150	250	mV
	Output low voltage	V_IN = V_OUT(NOM) – 0.5 V, I_OL = 400 μA	–40°C to 125°C			400	mV
	Upper threshold voltage (ERROR output high)⁽⁵⁾		25°C	40	60		mV
	Upper threshold voltage (ERROR output high)⁽⁵⁾		–40°C to 125°C	25			mV
	Lower threshold voltage (ERROR output low)⁽⁵⁾		25°C		75	95	mV
	Lower threshold voltage (ERROR output low)⁽⁵⁾		–40°C to 125°C			140	mV
	Hysteresis⁽⁵⁾		25°C		15		mV
SHUTDOWN INPUT
	Input logic voltage	Low (regulator ON)	–40°C to 125°C			0.7	V
	Input logic voltage	High (regulator OFF)	–40°C to 125°C	2			V
	SHUTDOWN input current	SHUTDOWN = 2.4 V	25°C		30	50	μA
		SHUTDOWN = 2.4 V	–40°C to 125°C			100
		SHUTDOWN = 30 V	25°C		450	600
		SHUTDOWN = 30 V	–40°C to 125°C			750
	Regulator output current in shutdown	V_SHUTDOWN ≥ 2 V, V_IN ≤ 30 V, V_OUT = 0, FEEDBACK tied to V_TAP	25°C		3	10	μA
	Regulator output current in shutdown		–40°C to 125°C			20	μA

(1) Output or reference voltage temperature coefficient is defined as the worst-case voltage change divided by the total temperature range.

(2) Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation.

(3) Dropout voltage is defined as the input-to-output differential at which the output voltage drops 100 mV, below the value measured at 1-V differential. The minimum input supply voltage of 2 V (2.3 V over temperature) must be observed.

(4) Thermal regulation is defined as the change in output voltage at a time (T) after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 50-mA load pulse at V_IN = 30 V, V_OUT = 5 V (1.25-W pulse) for t = 10 ms.

(5) Comparator thresholds are expressed in terms of a voltage differential equal to the nominal reference voltage (measured at V_IN – V_OUT = 1 V) minus FEEDBACK terminal voltage. To express these thresholds in terms of output voltage change, multiply by the error amplifier gain = V_OUT/V_REF = (R1 + R2)/R2. For example, at a programmed output voltage of 5 V, the ERROR output is specified to go low when the output drops by 95 mV × 5 V/1.235 V = 384 mV. Thresholds remain constant as a percentage of V_OUT (as V_OUT is varied), with the low-output warning occurring at 6% below nominal (typ) and 7.7% (max).