TEXAS INSTRUMENTS TPS61010, TPS61011, TPS61012, TPS61013, TPS61014 Technical data

DGS DRC

TPS61010, TPS61011

TPS61012, TPS61013 TPS61014, TPS61015, TPS61016

www.ti.com	SLVS314D –SEPTEMBER 2000 –REVISED JUNE 2005

HIGH-EFFICIENCY, 1-CELL AND 2-CELL BOOST CONVERTERS

FEATURES

∙Integrated Synchronous Rectifier for Highest Power Conversion Efficiency (>95%)

∙Start-Up Into Full Load With Supply Voltages as Low as 0.9 V, Operating Down to 0.8 V

∙200-mA Output Current From 0.9-V Supply

∙Powersave-Mode for Improved Efficiency at Low Output Currents

∙Autodischarge Allows to Discharge Output Capacitor During Shutdown

∙Device Quiescent Current Less Than 50 μA

∙Ease-of-Use Through Isolation of Load From Battery During Shutdown of Converter

∙Integrated Antiringing Switch Across Inductor

∙Integrated Low Battery Comparator

∙Micro-Small 10-Pin MSOP or 3 mm x 3 mm QFN Package

∙EVM Available (TPS6101xEVM-157)

APPLICATIONS

∙All Singleor Dual-Cell Battery Operated Products Like Internet Audio Players, Pager, Portable Medical Diagnostic Equipment, Remote Control, Wireless Headsets

DESCRIPTION

The TPS6101x devices are boost converters intended for systems that are typically operated from a singleor dual-cell nickel-cadmium (NiCd), nickel-metal hydride (NiMH), or alkaline battery.

The converter output voltage can be adjusted from 1.5 V to a maximum of 3.3 V, by an external resistor divider or, is fixed internally on the chip. The devices provide an output current of 200 mA with a supply voltage of only 0.9 V. The converter starts up into a full load with a supply voltage of only 0.9 V and stays in operation with supply voltages down to 0.8 V.

The converter is based on a fixed frequency, current mode, pulse-width-modulation (PWM) controller that goes automatically into power save mode at light load. It uses a built-in synchronous rectifier, so, no external Schottky diode is required and the system efficiency is improved. The current through the switch is limited to a maximum value of 1300 mA. The converter can be disabled to minimize battery drain. During shutdown, the load is completely isolated from the battery.

An autodischarge function allows discharging the output capacitor during shutdown mode. This is especially useful when a microcontroller or memory is supplied, where residual voltage across the output capacitor can cause malfunction of the applications. When programming the ADEN-pin, the autodischarge function can be disabled. A low-EMI mode is implemented to reduce interference and radiated electromagnetic energy when the converter enters the discontinuous conduction mode. The device is packaged in the micro-small space saving 10-pin MSOP package. The TPS61010 is also available in a 3 mm x 3 mm 10-pin QFN package.

			L1
	CIN		10 μH
				7
	10 μF
				SW
		6	VBAT	VOUT 5			COUT	VOUT = 3.3 V
						R3
	R1						22 μF
		9	LBI	LBO 10				Low Battery
	R2		TPS61016					Warning
OFF	ON	1	EN	FB	3	RC
OFF	ON	8			2	100 kΩ
			ADEN	COMP
				GND		CC1		CC2
				4
						10 pF		10 nF

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.	Copyright © 2000–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

TPS61010, TPS61011

TPS61012, TPS61013

TPS61014, TPS61015, TPS61016

www.ti.com

SLVS314D –SEPTEMBER 2000 –REVISED JUNE 2005

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

AVAILABLE OUTPUT VOLTAGE OPTIONS

T	OUTPUT VOLTAGE	PART NUMBER(1)	MARKING DGS PACKAGE	PACKAGE(2)
A
	Adjustable from 1.5 V to 3.3 V	TPS61010DGS	AIP
	1.5 V	TPS61011DGS	AIQ
	1.8 V	TPS61012DGS	AIR
-40°C to 85°C	2.5 V	TPS61013DGS	AIS	10-Pin MSOP
	2.8 V	TPS61014DGS	AIT
	3.0 V	TPS61015DGS	AIU
	3.3 V	TPS61016DGS	AIV
	Adjustable from 1.5 V to 3.3 V	TPS61010DRC	AYA	10-Pin QFN

(1)The DGS package and the DRC package are available taped and reeled. Add a R suffix to device type (e.g. TPS61010DGSR or TPS61010DRCR) to order quantities of 3000 devices per reel. The DRC package is also available in mini-reels. Add a T suffix to the device type (e.g. TPS61010DRCT) to order quantities of 250 devices per reel.

(2)For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI Web site at www.ti.com.

ABSOLUTE MAXIMUM RATINGS

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

		UNIT
Input voltage range:	VBAT, VOUT, EN, LBI, FB, ADEN	-0.3 V to 3.6 V
	SW	-0.3 V to 7 V
Voltage range:	LBO, COMP	-0.3 V to 3.6 V
Operating free-air temperature range, TA		-40°C to 85°C
Maximum junction temperature, TJ		150°C
Storage temperature range, Tstg		-65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10s		260°C

(1)Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

DISSIPATION RATING TABLE

PACKAGE	TA <25°C	DERATING FACTOR	TA = 70°C	TA = 85°C
	POWER RATING	ABOVE TA = 25°C	POWER RATING	POWER RATING
DGS	424 mW	3.4 mW/°C	271 mW	220 mW

RECOMMENDED OPERATING CONDITIONS

	MIN	NOM	MAX	UNIT
Supply voltage at VBAT, VI	0.8		VOUT	V
Maximum output current at VIN = 1.2 V, IO	100			mA
Maximum output current at VIN = 2.4 V, IO	200			mA
Inductor, L1	10	33		µH
Input capacitor, CI		10		µF
Output capacitor, Co	10	22	47	µF
Operating virtual junction temperature, TJ	-40		125	°C

2

TPS61010, TPS61011 TPS61012, TPS61013

TPS61014, TPS61015, TPS61016

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SLVS314D –SEPTEMBER 2000 –REVISED JUNE 2005

ELECTRICAL CHARACTERISTICS

over recommended operating free-air temperature range, VBAT = 1.2 V, EN = VBAT (unless otherwise noted)

PARAMETER

	Minimum input voltage for
VI	start-up
	Input voltage once started
	Programmable output
	voltage range

VO

Output voltage

	IO	Maximum continuous output
		current
	I(SW)	Switch current limit
	V(FB)	Feedback voltage
	f	Oscillator frequency
	D	Maximum duty cycle
	rDS(on)	NMOS switch on-resistance
		PMOS switch on-resistance
	rDS(on)	NMOS switch on-resistance
		PMOS switch on-resistance
		Line regulation (1)
		Load regulation (1)
		Autodischarge switch
		resistance
		Residual output voltage
		after autodischarge
	V	LBI voltage threshold (2)
	IL
		LBI input hysteresis
		LBI input current
	VOL	LBO output low voltage
		LBO output leakage current
	I(FB)	FB input bias current
		(TPS61010 only)
	VIL	EN and ADEN input low
		voltage

	TEST CONDITIONS		MIN	TYP	MAX	UNIT
	RL = 33 Ω			0.85	0.9
	RL = 3 kΩ, TA = 25 °C		0.8			V
	IO = 100 mA		0.8
	TPS61010, IOUT = 100 mA		1.5		3.3	V
	TPS61011, 0.8 V < VI < VO, IO = 0 to 100 mA		1.45	1.5	1.55	V
	TPS61012, 0.8 V < VI < VO, IO = 0 to 100 mA		1.74	1.8	1.86
	TPS61013, 0.8 V < VI < VO, IO = 0 to 100 mA		2.42	2.5	2.58	V
	TPS61013, 1.6 V < VI < VO, IO = 0 to 200 mA		2.42	2.5	2.58	V
	TPS61014, 0.8 V < VI < VO, IO = 0 to 100 mA		2.72	2.8	2.88	V
	TPS61014, 1.6 V < VI < VO, IO = 0 to 200 mA		2.72	2.8	2.88	V
	TPS61015, 0.8 V < VI < VO, IO = 0 to 100 mA		2.9	3.0	3.1	V
	TPS61015, 1.6 V < VI < VO, IO = 0 to 200 mA		2.9	3.0	3.1	V
	TPS61016, 0.8 V < VI < VO, IO = 0 to 100 mA		3.2	3.3	3.4	V
	TPS61016, 1.6 V < VI < VO, IO = 0 to 200 mA		3.2	3.3	3.4	V
	VI	> 0.8 V	100			mA
	VI	> 1.8 V	250
	TPS61011, once started		0.39	0.48
	TPS61012, once started		0.54	0.56
	TPS61013, once started		0.85	0.93		A
	TPS61014, once started		0.95	1.01
	TPS61015, once started		1	1.06
	TPS61016, once started		1.07	1.13
			480	500	520	mV
			420	500	780	kHz
				85%
	VO = 1.5 V			0.37	0.51	Ω
				0.45	0.54
	VO = 3.3 V			0.2	0.37	Ω
				0.3	0.45
	VI = 1.2 V to 1.4 V, IO = 100 mA			0.3		%/V
	VI = 1.2 V; IO = 50 mA to 100 mA			0.1
				300	400	Ω
	ADEN = VBAT; EN = GND				0.4	V
	V(LBI) voltage decreasing		480	500	520	mV
				10		mv
				0.01	0.03
	V(LBI) = 0 V, VO = 3.3 V, I(OL) = 10 µA			0.04	0.2	V
	V(LBI) = 650 mV, V(LBO) = VO				0.03	µA
	V(FB) = 500 mV			0.01	0.03
	0.8 V < VBAT < 3.3 V				0.2 × VBAT	V

(1)Line and load regulation is measured as a percentage deviation from the nominal value (i.e., as percentage deviation from the nominal output voltage). For line regulation, x %/V stands for ±x% change of the nominal output voltage per 1-V change on the input/supply voltage. For load regulation, y% stands for ±y% change of the nominal output voltage per the specified current change.

(2)For proper operation the voltage at LBI may not exceed the voltage at VBAT.

3

TPS61010, TPS61011

TPS61012, TPS61013

TPS61014, TPS61015, TPS61016

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SLVS314D –SEPTEMBER 2000 –REVISED JUNE 2005

ELECTRICAL CHARACTERISTICS (continued)

over recommended operating free-air temperature range, VBAT = 1.2 V, EN = VBAT (unless otherwise noted)

	PARAMETER		TEST CONDITIONS
	VIH	EN and ADEN input high	0.8 V < VBAT < 3.3 V
		voltage
		EN and ADEN input current	EN and ADEN = GND or VBAT
	Iq	Quiescent current into pins	IL = 0 mA, VEN = VI	VBAT/SW
		VBAT/SW and VOUT		VO
	Ioff	Shutdown current from	VEN = 0 V, ADEN = VBAT, TA= 25°C
		power source

MIN	TYP	MAX		UNIT
0.8 ×VBAT				V
	0.01		0.03	µA
	31		46	µA
	5		8
	1		3	µA

FUNCTIONAL BLOCK DIAGRAMS

fixed output voltage versions TPS61011 to TPS61016

		L1
				SW
CIN
	Antiringing					Bias
			_			Control
	Comparator
	and Switch		+				VOUT
VBAT							COUT
					ADEN
	UVLO
			Control Logic	Current Sense,
EN			Oscillator	Current Limit, Slope
			Gate Drive	Compensation
ADEN	ADEN
LBI			+		_		FB
			_
						Bandgap
	_		Error	Error	+
		Comparator				Reference
LBO				Amplifier
	+	VREF
			GND	COMP

4

TPS61010, TPS61011 TPS61012, TPS61013

TPS61014, TPS61015, TPS61016

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SLVS314D –SEPTEMBER 2000 –REVISED JUNE 2005

FUNCTIONAL BLOCK DIAGRAMS (continued)

adjustable output voltage version TPS61010

		L1
				SW
CIN
	Antiringing					Bias
			_			Control
	Comparator
	and Switch		+				VOUT
VBAT							COUT
					ADEN
	UVLO
			Control Logic	Current Sense,
EN			Oscillator	Current Limit, Slope
			Gate Drive	Compensation
ADEN	ADEN
LBI			+		_		FB
			_			Bandgap
	_		Error	Error	+
		Comparator				Reference
LBO				Amplifier
	+	VREF
			GND	COMP

5

TPS61010, TPS61011

TPS61012, TPS61013

TPS61014, TPS61015, TPS61016

www.ti.com

SLVS314D –SEPTEMBER 2000 –REVISED JUNE 2005
		DGS			DRC
		(TOP VIEW)
					(TOP VIEW)
EN	1	10	LBO	EN	LBO
COMP	2	9	LBI	COMP	LBI
FB	3	8	ADEN	FB	ADEN
GND	4	7	SW	GND	SW
VOUT	5	6	VBAT	VOUT	VBAT

Terminal Functions

		Terminal
	Name	DRG	DRC	I/O	Description
		No.	No.
	ADEN	8	8	I	Autodischarge input. The autodischarge function is enabled if this pin is connected to VBAT, it is disabled
					if ADEN is tied to GND.
	COMP	2	2	I	Compensation of error amplifier. Connect an R/C/C network to set frequency response of control loop.
	EN	1	1	I	Chip-enable input. The converter is switched on if this pin is set high, it is switched off if this pin is
					connected to GND.
					Feedback input for adjustable output voltage version TPS61010. Output voltage is programmed
	FB	3	3	I	depending on the output voltage divider connected there. For the fixed output voltage versions, leave
					FB-pin unconnected.
	GND	4	4		Ground
					Low-battery detector input. A low battery warning is generated at LBO when the voltage on LBI drops
	LBI	9	9	I	below the threshold of 500 mV. Connect LBI to GND or VBAT if the low-battery detector function is not
					used. Do not leave this pin floating.
	LBO	10	10	O	Open-drain low-battery detector output. This pin is pulled low if the voltage on LBI drops below the
					threshold of 500 mV. A pullup resistor must be connected between LBO and VOUT.
	SW	7	7	I	Switch input pin. The inductor is connected to this pin.
	VOUT	5	5	O	Output voltage. Internal resistor divider sets regulated output voltage in fixed output voltage versions.
	VBAT	6	6	I	Supply pin

DETAILED DESCRIPTION

Controller Circuit

The device is based on a current-mode control topology using a constant frequency pulse-width modulator to regulate the output voltage. The controller limits the current through the power switch on a pulse by pulse basis. The current-sensing circuit is integrated in the device, therefore, no additional components are required. Due to the nature of the boost converter topology used here, the peak switch current is the same as the peak inductor current, which will be limited by the integrated current limiting circuits under normal operating conditions.

The control loop must be externally compensated with an R-C-C network connected to the COMP-pin.

Synchronous Rectifier

The device integrates an N-channel and a P-channel MOSFET transistor to realize a synchronous rectifier. There

is no additional Schottky diode required. Because the device uses a integrated low rDS(on) PMOS switch for rectification, the power conversion efficiency reaches 95%.

A special circuit is applied to disconnect the load from the input during shutdown of the converter. In conventional synchronous rectifier circuits, the backgate diode of the high-side PMOS is forward biased in shutdown and allows current flowing from the battery to the output. This device, however, uses a special circuit to disconnect the backgate diode of the high-side PMOS and so, disconnects the output circuitry from the source when the regulator is not enabled (EN = low).

The benefit of this feature for the system design engineer, is that the battery is not depleted during shutdown of the converter. So, no additional effort has to be made by the system designer to ensure disconnection of the battery from the output of the converter. Therefore, design performance will be increased without additional costs and board space.

6

TPS61010, TPS61011 TPS61012, TPS61013

TPS61014, TPS61015, TPS61016

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SLVS314D –SEPTEMBER 2000 –REVISED JUNE 2005

DETAILED DESCRIPTION (continued)

Power-Save Mode

The TPS61010 is designed for high efficiency over a wide output current range. Even at light loads, the efficiency stays high because the switching losses of the converter are minimized by effectively reducing the switching frequency. The controller enters a powersave-mode if certain conditions are met. In this mode, the controller only switches on the transistor if the output voltage trips below a set threshold voltage. It ramps up the output voltage with one or several pulses, and goes again into powersave-mode once the output voltage exceeds a set threshold voltage.

Device Enable

The device is shut down when EN is set to GND. In this mode, the regulator stops switching, all internal control circuitry including the low-battery comparator, is switched off, and the load is disconnected from the input (as described above in the synchronous rectifier section). This also means that the output voltage may drop below the input voltage during shutdown.

The device is put into operation when EN is set high. During start-up of the converter, the duty cycle is limited in order to avoid high peak currents drawn from the battery. The limit is set internally by the current limit circuit and is proportional to the voltage on the COMP-pin.

Under-Voltage Lockout

An under-voltage lockout function prevents the device from starting up if the supply voltage on VBAT is lower than approximately 0.7 V. This under-voltage lockout function is implemented in order to prevent the malfunctioning of the converter. When in operation and the battery is being discharged, the device will automatically enter the shutdown mode if the voltage on VBAT drops below approximately 0.7 V.

Autodischarge

The autodischarge function is useful for applications where the supply voltage of a μC, μP, or memory has to be removed during shutdown in order to ensure a defined state of the system.

The autodischarge function is enabled when the ADEN is set high, and is disabled when the ADEN is set to GND. When the autodischarge function is enabled, the output capacitor will be discharged after the device is shut down by setting EN to GND. The capacitors connected to the output are discharged by an integrated switch of 300 Ω, hence the discharge time depends on the total output capacitance. The residual voltage on VOUT is less than 0.4 V after autodischarge.

Low-Battery Detector Circuit (LBI and LBO)

The low-battery detector circuit is typically used to supervise the battery voltage and to generate an error flag when the battery voltage drops below a user-set threshold voltage. The function is active only when the device is enabled. When the device is disabled, the LBO-pin is high impedance. The LBO-pin goes active low when the voltage on the LBI-pin decreases below the set threshold voltage of 500 mV ±15 mV, which is equal to the internal reference voltage. The battery voltage, at which the detection circuit switches, can be programmed with a resistive divider connected to the LBI-pin. The resistive divider scales down the battery voltage to a voltage level of 500 mV, which is then compared to the LBI threshold voltage. The LBI-pin has a built-in hysteresis of 10 mV. See the application section for more details about the programming of the LBI-threshold.

If the low-battery detection circuit is not used, the LBI-pin should be connected to GND (or to VBAT) and the LBO-pin can be left unconnected. Do not let the LBI-pin float.

Antiringing Switch

The device integrates a circuit that removes the ringing that typically appears on the SW-node when the converter enters the discontinuous current mode. In this case, the current through the inductor ramps to zero and the integrated PMOS switch turns off to prevent a reverse current from the output capacitors back to the battery. Due to remaining energy that is stored in parasitic components of the semiconductors and the inductor, a ringing on the SW pin is induced. The integrated antiringing switch clamps this voltage internally to VBAT and therefore, dampens this ringing.

7

TPS61010, TPS61011

TPS61012, TPS61013

TPS61014, TPS61015, TPS61016

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SLVS314D –SEPTEMBER 2000 –REVISED JUNE 2005

DETAILED DESCRIPTION (continued)

Adjustable Output Voltage

The devices with fixed output voltages are trimmed to operate with an output voltage accuracy of ±3%.

The accuracy of the adjustable version is determined by the accuracy of the internal voltage reference, the controller topology, and the accuracy of the external resistor. The reference voltage has an accuracy of ±4% over line, load, and temperature. The controller switches between fixed frequency and pulse-skip mode, depending on load current. This adds an offset to the output voltage that is equivalent to 1% of VO. The tolerance of the resistors in the feedback divider determine the total system accuracy.

Parameter Measurement Information

		L1
	CIN	10 μH
			7
	10 μF
			SW
	6	VBAT	VOUT 5				VOUT = 3.3 V
					R3	COUT
						22	μ
R1							F
	9		LBO 10
		LBI					Low Battery Warning
R2		TPS61016
	8	ADEN	FB	3	RC
OFF	ON 1	EN	COMP 2		100 kΩ
			GND		CC1		CC2
			4
					10 pF		10 nF

List of Components:

IC1: Only Fixed Output Versions

(Unless Otherwise Noted)

L1: SUMIDA CDRH6D38 – 100

CIN: X7R/X5R Ceramic

COUT : X7R/X5R Ceramic

Figure 1. Circuit Used for Typical Characteristics Measurements

8

TPS61010, TPS61011 TPS61012, TPS61013

TPS61014, TPS61015, TPS61016

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		SLVS314D –SEPTEMBER 2000 –REVISED JUNE 2005
		Typical Characteristics
	Table of Graphs
			FIGURE
	Maximum output current	vs Input voltage for VO = 2.5 V, 3.3 V	3
		vs Input voltage for VO = 1.5 V, 1.8 V	4
		vs Output current for VI = 1.2 VVO = 1.5 V, L1 = Sumida CDR74 - 10 µH	5
		vs Output current for VI = 1.2 VVO = 2.5 V, L1 = Sumida CDR74 - 10 µH	6
		vs Output current for VIN = 1.2 VVO = 3.3 V, L1 = Sumida CDR74 - 10 µH	7
		vs Output current for VI = 2.4 VVO = 3.3 V, L1 = Sumida CDR74 - 10 µH	8
		vs Input voltage for IO = 10 mA, IO = 100 mA, IO = 200 mAVO = 3.3 V, L1 =	9
		Sumida CDR74 - 10 µH
		TPS61016, VBAT = 1.2 V, IO = 100 mA
		Sumida CDRH6D38 - 10 µH
		Sumida CDRH5D18 - 10 µH
		Sumida CDRH74 - 10 µH
	Efficiency	Sumida CDRH74B - 10 µH
		Coilcraft DS 1608C - 10 µH
		Coilcraft DO 1608C - 10 µH
		Coilcraft DO 3308P - 10 µH	10
		Coilcraft DS 3316 - 10 µH
		Coiltronics UP1B - 10 µH
		Coiltronics UP2B - 10 µH
		Murata LQS66C - 10 µH
		Murata LQN6C - 10 µH
		TDK SLF 7045 - 10 µH
		TDK SLF 7032 - 10 µH
		vs Output current TPS61011	11
	Output voltage	vs Output current TPS61013	12
		vs Output current TPS61016	13
	Minimum supply start-up voltage	vs Load resistance	14
	No-load supply current	vs Input voltage	15
	Shutdown supply current	vs Input voltage	16
	Switch current limit	vs Output voltage	17
		Output voltage (ripple) in continuous modeInductor current	18
		Output voltage (ripple) in discontinuous modeInductor current	19
	Waveforms	Load transient response for output current step of 50 mA to 100 mA	20
		Line transient response for supply voltage step from 1.08 V to 1.32 V at	21
		IO = 100 mA
		Converter start-up time after enable	22

9