SNVS729 Data sheet

SNVS729F September 2011 – August 2014 LM10506

PRODUCTION DATA.

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YFR|34
- MXBG185

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7 Specifications

7.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted) ⁽¹⁾⁽²⁾⁽³⁾

	MIN	MAX	UNIT
VIN, VCOMP	−0.3	6	V
VIN_IO, VIN_B1, VIN_B2, VIN_B3, SPI_CS, SPI_DI, SPI_CLK, SPI_DO, IRQ, HL_B2, HL_B3, STANDBY, RESET, SW_B1, SW_B2, SW_B3, FB_B1, FB_B2, FB_B3, LDO	−0.3	6	V
Junction Temperature (T_J-MAX)		150	°C

(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) Internal thermal shutdown protects device from permanent damage. Thermal shutdown engages at T_J = 140°C and disengages at T_J = 120°C (typ.). Thermal shutdown is ensured by design.

(3) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications.

7.2 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⁾	–2000	2000	V

(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

7.3 Recommended Operating Conditions

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

	MIN	MAX	UNIT
VIN_B1, VIN_B2_VIN_B3, VIN	3	5.5	V
VIN_IO (< V_IN)	1.72	3.63 (but < V_IN)
All pins except VIN_IO	0	V_IN
Junction temperature (T_J)	−40	125	°C
Ambient temperature (T_A)	−40	85	°C
Maximum continuous power dissipation (P_D-MAX) ⁽¹⁾		0.9	W

(1) In applications where high power dissipation and/or poor thermal resistance is present the maximum ambient temperature may have to be derated. Maximum ambient temperature (T_A-MAX) is dependent on the maximum operating junction temperature (T_J-MAX-OP = 125°C), the maximum power dissipation of the device in the application (P_D-MAX), and the junction-to-ambient thermal resistance of the part/package in the application (R_θJA), as given by the following equation: T_A-MAX = T_J-MAX-OP – (R_θJA × P_D-MAX).

7.4 Thermal Information

THERMAL METRIC⁽¹⁾		LM10506	UNIT
		DSBGA
		34 PINS
R_θJA	Junction-to-ambient thermal resistance	44.5	°C/W

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

7.5 General Electrical Characteristics⁽²⁾⁽³⁾

Unless otherwise noted, V_IN = 5 V where: V_IN = V_{VIN_B1} = V_{VIN_B2} = V_{VIN_B3}. Limits apply for T_J = 25°C, unless otherwise noted.

SYMBOL	PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
I_Q(STANDBY)	Quiescent supply current	STANDBY = HIGH, no load		100	200⁽⁴⁾	µA
UNDER/OVERVOLTAGE LOCK OUT
V_{UVLO_RISING}				2.90		V
V_{UVLO_FALLING}				2.60
V_{OVLO_RISING}				5.82
V_{OVLO_FALLING}				5.70
DIGITAL INTERFACE
V_IL	Logic input low	SPI_CS, SPI_DI, SPI_CLK, RESET, STANDBY			0.3*VIN_IO⁽⁴⁾	V
V_IH	Logic input high	SPI_CS, SPI_DI, SPI_CLK, RESET, STANDBY	0.7*VIN_IO⁽⁴⁾
V_IL	Logic input low	HL_B2, HL_B3			0.3*VIN⁽⁴⁾
V_IH	Logic input high	HL_B2, HL_B3	0.7*VIN⁽⁴⁾
V_OL	Logic output low	SPI_DO, IRQ			0.2*VIN_IO⁽⁴⁾
V_OH	Logic output high	SPI_DO, IRQ	0.8*VIN_IO⁽⁴⁾
I_IL	Input current, pin driven low	SPI_CS, SPI_DI, SPI_CLK, HL_B2, STANDBY	−2			µA
I_IL	Input current, pin driven low	HL_B3, RESET	−5			µA
I_IH	Input current, pin driven high	SPI_CS, SPI_DI, SPI_CLK, HL_B3, RESET			2	µA
I_IH	Input current, pin driven high	HL_B2, STANDBY			5	µA
f_{SPI_MAX}	SPI max frequency				10⁽⁴⁾	MHz
t_RESET	Minimum high-pulse width ⁽¹⁾			2⁽⁴⁾		µs
t_STANDBY	Minimum high-pulse width ⁽¹⁾			2⁽⁴⁾		µs

(1) Specification ensured by design. Not tested during production.

(2) All limits are ensured by design, test and/or statistical analysis. All electrical characteristics having room-temperature limits are tested during production with T_J = 25°C. All hot and cold limits are ensured by correlating the electrical characteristics to process and temperature variations and applying statistical process control.

(3) Capacitors: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) are used in setting electrical characteristics.

(4) Limits apply over the entire operating junction temperature range of −40°C ≤ T_A = T_J ≤ 85°C.

7.6 Buck 1 Electrical Characteristics⁽²⁾⁽³⁾⁽⁴⁾

Unless otherwise noted, V_IN = 5 V where: V_IN = V_{VIN_B1} = V_{VIN_B2} = V_{VIN_B3}. Limits apply for T_J = 25°C, unless otherwise noted.

SYMBOL	PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
I_Q	DC bias current in V_IN	No Load, PFM Mode		15	50⁽⁵⁾	µA
I_PEAK	Peak switching current limit	Buck 1 enabled, switching in PWM	1.6⁽⁵⁾	1.8	2.1⁽⁵⁾	A
η	Efficiency peak, Buck 1 ⁽¹⁾	I_OUT = 0.3 A		90%
ƒ_SW	Switching frequency		1.75⁽⁵⁾	2	2.3⁽⁵⁾	MHz
C_IN	Input capacitor ⁽¹⁾	0 mA ≤ I_OUT ≤ 1.3 A		4.7		µF
C_OUT	Output filter capacitor ⁽¹⁾		10	10	100	µF
C_OUT	Output capacitor ESR ⁽¹⁾				20	mΩ
L	Output filter inductance ⁽¹⁾			2.2		µH
ΔVOUT	DC line regulation ⁽¹⁾	3.3 V ≤ V_IN ≤ 5 V, I_OUT = 1.3 A		0.5		%/V
ΔVOUT	DC load regulation ⁽¹⁾	0.13 A ≤ I_OUT ≤ 1.3 A		0.3		%/A
I_FB	Feedback pin input bias current	V_FB = 3 V		2.1	5⁽⁵⁾	µA
R_DS-ON-HS	High side switch on resistance			135		mΩ
R_DS-ON-HS	High side switch on resistance	V_IN = 2.6 V		215		mΩ
R_DS-ON-LS	Low side switch on resistance			85	190⁽⁵⁾	mΩ
R_{DS-ON_BYPASS}	Bypass FET on resistance	Used in parallel with the high side FET while in Bypass mode. Resistance (DCR) of inductor = 100 mΩ
		V_IN = 3.3 V		85		mΩ
		V_IN = 2.6 V		120		mΩ
STARTUP
T_START	Internal soft-start (turn on time) ⁽¹⁾	Start-up from shutdown, V_OUT = 0V, no load, LC = recommended circuit, using software enable, to V_OUT = 95% of final value		0.1		ms

(1) Specification ensured by design. Not tested during production.

(3) Capacitors: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) are used in setting electrical characteristics.

(4) BUCK normal operation is ensured if V_IN ≥ V_OUT+1 V.

(5) Limits apply over the entire operating junction temperature range of −40°C ≤ T_A = T_J ≤ 85°C.

7.7 Buck 2 Electrical Characteristics⁽²⁾⁽³⁾⁽⁴⁾

Unless otherwise noted, V_IN = 5 V where: V_IN = V_{VIN_B1} = V_{VIN_B2} = V_{VIN_B3}. Limits apply for T_J = 25°C, unless otherwise noted.

SYMBOL	PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
I_Q	DC bias current in V_IN	No Load, PFM Mode		15	50⁽⁵⁾	µA
I_PEAK	Peak switching current limit	Buck 2 enabled, switching in PWM	0.65⁽⁵⁾	1.1	1.55⁽⁵⁾	A
η	Efficiency peak, Buck 2 ⁽¹⁾	I_OUT = 0.3 A		90%
ƒ_SW	Switching frequency		1.75⁽⁵⁾	2	2.3⁽⁵⁾	MHz
C_IN	Input capacitor ⁽¹⁾	0 mA ≤ I_OUT ≤ 400 mA		4.7		µF
C_OUT	Output filter capacitor ⁽¹⁾		10	10	100	µF
C_OUT	Output capacitor ESR ⁽¹⁾				20	mΩ
L	Output filter inductance ⁽¹⁾			2.2		µH
ΔVOUT	DC line regulation ⁽¹⁾	3.3 V ≤ V_IN ≤ 5 V, I_OUT = 400 mA		0.5		%/V
ΔVOUT	DC load regulation ⁽¹⁾	100 mA ≤ I_OUT ≤ 400 mA		0.3		%/A
I_FB	Feedback pin input bias current	V_FB = 1.8 V		1.8	5⁽⁵⁾	µA
R_DS-ON-HS	High side switch on resistance			135		mΩ
R_DS-ON-HS	High side switch on resistance	V_IN = 2.6 V		260
R_DS-ON-LS	Low side switch on resistance			85	190⁽⁵⁾
STARTUP
T_START	Internal soft-start (turn on time) ⁽¹⁾	Startup from shutdown, V_OUT = 0V, no load, LC = recommended circuit, using software enable, to V_OUT = 95% of final value		0.1		ms

(1) Specification ensured by design. Not tested during production.

(3) Capacitors: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) are used in setting electrical characteristics.

(4) BUCK normal operation is ensured if V_IN ≥ V_OUT+1 V.

(5) Limits apply over the entire operating junction temperature range of −40°C ≤ T_A = T_J ≤ 85°C.

7.8 Buck 3 Electrical Characteristics⁽²⁾⁽³⁾⁽⁴⁾

Unless otherwise noted, V_IN = 5 V where: V_IN = V_{VIN_B1} = V_{VIN_B2} = V_{VIN_B3}. Limits apply for T_J = 25°C, unless otherwise noted.

SYMBOL	PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
I_Q	DC bias current in V_IN	No Load, PFM Mode		15	50⁽⁵⁾	µA
I_PEAK	Peak switching current limit	Buck 3 enabled, switching in PWM	0.9⁽⁵⁾	1.2	1.7⁽⁵⁾	A
η	Efficiency peak, Buck 3 ⁽¹⁾	I_OUT = 0.3 A		90%
ƒ_SW	Switching frequency		1.75⁽⁵⁾	2	2.3⁽⁵⁾	MHz
C_IN	Input Capacitor ⁽¹⁾	0 mA ≤ I_OUT ≤ 600 mA		4.7		µF
C_OUT	Output Filter Capacitor ⁽¹⁾		10	10	100	µF
C_OUT	Output Capacitor ESR ⁽¹⁾				20	mΩ
L	Output Filter Inductance ⁽¹⁾			2.2		µH
ΔVOUT	DC Line regulation ⁽¹⁾	3.3 V ≤ V_IN ≤ 5 V, I_OUT = 600 mA		0.5		%/V
ΔVOUT	DC Load regulation ⁽¹⁾	150 mA ≤ I_OUT ≤ 600 mA		0.3		%/A
I_FB	Feedback pin input bias current	V_FB = 1.2 V		0.9	5⁽⁵⁾	µA
R_DS-ON-HS	High Side Switch On Resistance			135		mΩ
R_DS-ON-HS	High Side Switch On Resistance	V_IN = 2.6 V		260
R_DS-ON-LS	Low Side Switch On Resistance			85	190⁽⁵⁾
STARTUP
T_START	Internal soft-start (turn on time) ⁽¹⁾	Startup from shutdown, V_OUT = 0 V, no load, LC = recommended circuit, using software enable, to V_OUT = 95% of final value		0.1		ms

(1) Specification ensured by design. Not tested during production.

(3) Capacitors: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) are used in setting electrical characteristics.

(4) BUCK normal operation is ensured if V_IN ≥ V_OUT+1 V.

(5) Limits apply over the entire operating junction temperature range of −40°C ≤ T_A = T_J ≤ 85°C.

7.9 LDO Electrical Characteristics⁽²⁾⁽³⁾

Unless otherwise noted, V_IN = 5 V where: V_IN = V_{VIN_B1} = V_{VIN_B2} = V_{VIN_B3}. Limits apply for T_J = 25°C, unless otherwise noted.

PARAMETER		TEST CONDITIONS		MIN	TYP	MAX	UNIT
V_OUT	Output voltage accurancy	I_OUT = 1 mA		–3%⁽⁴⁾		3%⁽⁴⁾
I_SC	Short-circuit current limit	V_OUT = 0 V			0.3
I_SC	Short-circuit current limit	V_IN = 3.3 V, V_OUT = 0 V ⁽¹⁾			0.5
V_DO	Dropout voltage	I_OUT = 100 mA			60	100⁽⁴⁾	mV
ΔV_OUT	Line regulation	3.3 V ≤ V_IN ≤ 5.5 V, I_OUT = 1 mA			5
ΔV_OUT	Load regulation	1 mA ≤ I_OUT ≤ 100 mA, V_IN = 3.3 V, 5 V			5
e_N	Output noise voltage⁽¹⁾	10 Hz ≤ ƒ ≤ 100 kHz	V_IN = 5 V		10		µV_RMS
e_N	Output noise voltage⁽¹⁾	10 Hz ≤ ƒ ≤ 100 kHz	V_IN = 3.3 V		35		µV_RMS
PSSR	Power supply rejection ratio⁽¹⁾	F = 10 kHz, C_OUT = 4.7 µF, I_OUT = 20 mA	V_IN = 5 V		65		dB
PSSR	Power supply rejection ratio⁽¹⁾	F = 10 kHz, C_OUT = 4.7 µF, I_OUT = 20 mA	V_IN = 3.3 V		40		dB
t_STARTUP	Start-up time from shutdown⁽¹⁾	C_OUT = 4.7 µF, I_OUT = 100 mA	V_IN = 5 V		45		µs
t_STARTUP	Start-up time from shutdown⁽¹⁾	C_OUT = 4.7 µF, I_OUT = 100 mA	V_IN = 3.3 V		60		µs
t_TRANSIENT	Start-up transient overshoot⁽¹⁾					30⁽⁴⁾	mV

(1) Specification ensured by design. Not tested during production.

(3) Capacitors: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) are used in setting electrical characteristics.

(4) Limits apply over the entire operating junction temperature range of −40°C ≤ T_A = T_J ≤ 85°C.

7.10 Comparators Electrical Characteristics⁽¹⁾⁽²⁾

Unless otherwise noted, V_IN = 5 V where: V_IN = V_{IN_B1} = V_{IN_B2} = V_{IN_B3}. Limits apply for T_J = 25°C, unless otherwise noted.

SYMBOL	PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
I_VCOMP	VCOMP pin bias current	V_COMP = 0 V		0.1	2⁽³⁾	µA
I_VCOMP	VCOMP pin bias current	V_COMP = 5 V		0.1	2⁽³⁾	µA
V_{COMP_RISE}	Comparator rising edge trigger level			2.826		V
V_{COMP_FALL}	Comparator falling edge trigger level			2.768		V
Hysteresis			30⁽³⁾	60	80⁽³⁾	mV
IRQ_VOH	Output voltage high				0.8*VIN_IO⁽³⁾	V
IRQ_VOL	Output voltage low		0.2*VIN_IO⁽³⁾			V
t_COMP	Transition time of IRQ output			6	15⁽³⁾	µsec

(1) All limits are ensured by design, test and/or statistical analysis. All electrical characteristics having room-temperature limits are tested during production with T_J = 25°C. All hot and cold limits are ensured by correlating the electrical characteristics to process and temperature variations and applying statistical process control.

(2) Capacitors: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) are used in setting electrical characteristics.

(3) Limits apply over the entire operating junction temperature range of −40°C ≤ T_A = T_J ≤ 85°C.

7.11 Typical Characteristics


V_IN = 3.3 V	V_OUT = 3 V	I_OUT= 1 A

Figure 1. Start-Up Of Buck 1

Figure 3. LDO V_OUT vs. I_OUT


V_IN = 5 V	V_OUT = 3 V

Figure 5. Buck 1 V_OUT vs. I_OUT


V_IN = 5 V	V_OUT = 3 V

Figure 7. Buck 2 V_OUT vs. I_OUT


V_IN = 5 V	V_OUT = 1.2 V

Figure 9. Buck 3 V_OUT vs. I_OUT


V_OUT = 3 V	I_OUT= 400 mA

Figure 11. Buck 2 V_OUT vs. V_IN


V_OUT = 1.2 V	I_OUT= 600 mA

Figure 13. Buck 3 V_OUT vs V_IN

Figure 15. From LDO Start-Up To Buck 1 Start-Up

Figure 17. From Buck 2 Start-Up To Buck 3 Start-Up


V_IN = 5 V	V_OUT = 3 V	I_OUT= 1 A

Figure 2. Start-Up Of Buck 1

Figure 4. LDO V_IN vs. V_OUT


V_IN = 5 V	V_OUT = 1.8 V

Figure 6. Buck 2 V_OUT vs. I_OUT


V_IN = 5 V	V_OUT = 1 V

Figure 8. Buck 3 V_OUT vs. I_OUT


V_OUT = 1.8 V	I_OUT= 400 mA

Figure 10. Buck 2 V_OUT vs. V_IN


V_OUT = 1 V	I_OUT= 600 mA

Figure 12. Buck 3 V_OUT vs V_IN

Figure 14. LDO Start-Up Time From V_IN Rise

Figure 16. From Buck 1 Start-Up To Buck 2 Start-Up

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7 Specifications

7.1 Absolute Maximum Ratings

7.2 Handling Ratings

7.3 Recommended Operating Conditions

7.4 Thermal Information

7.5 General Electrical Characteristics(2)(3)

7.6 Buck 1 Electrical Characteristics(2)(3)(4)

7.7 Buck 2 Electrical Characteristics(2)(3)(4)

7.8 Buck 3 Electrical Characteristics(2)(3)(4)

7.9 LDO Electrical Characteristics(2)(3)

7.10 Comparators Electrical Characteristics(1)(2)

7.11 Typical Characteristics

7.5 General Electrical Characteristics⁽²⁾⁽³⁾

7.6 Buck 1 Electrical Characteristics⁽²⁾⁽³⁾⁽⁴⁾

7.7 Buck 2 Electrical Characteristics⁽²⁾⁽³⁾⁽⁴⁾

7.8 Buck 3 Electrical Characteristics⁽²⁾⁽³⁾⁽⁴⁾

7.9 LDO Electrical Characteristics⁽²⁾⁽³⁾

7.10 Comparators Electrical Characteristics⁽¹⁾⁽²⁾