TPS6101x High-Efficiency, 1-Cell and 2-Cell Boost Converters

1 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)

2 Applications

All Single- or Dual-Cell Battery Operated Products
- Internet Audio Players
- Pager
- Portable Medical Diagnostic Equipment
- Remote Control
- Wireless Headsets

Simplified Application Circuit

TPS61010 TPS61011 TPS61012 TPS61013 TPS61014 TPS61015 TPS61016 simpschem_LVS314.gif

3 Description

The TPS6101x devices are boost converters intended for systems that are typically operated from a single- or 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.

Device Information⁽¹⁾

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS61010	VSSOP (10)	3.00 mm x 3.00 mm
TPS61010	VSON (10)	3.00 mm x 3.00 mm
TPS61011	VSSOP (10)	3.00 mm x 3.00 mm
TPS61012
TPS61013
TPS61014
TPS61015
TPS61016

For all available packages, see the orderable addendum at the end of the datasheet.

4 Revision History

Changes from E Revision (December 2014) to F Revision

Moved Storage temperature range, T_stg to the Absolute Maximum RatingsGo
Changed Handling Ratings To ESD RatingsGo
Changed R_θJA = 294°C/W" To: R_θJA = 161.8°C/W in Thermal ConsiderationsGo
Changed text "maximum power dissipation is about 130 mW." To: "maximum power dissipation is about 247 mW." in Thermal ConsiderationsGo
Changed Equation 8 From: = 136 mW To: = 247 mW Go

Changes from D Revision (June 2005) to E Revision

Added Pin Configuration and Functions section, Handling Rating table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go

5 Device Comparison Table

T_A	OUTPUT VOLTAGE (V)	PART NUMBER⁽¹⁾	MARKING DGS PACKAGE	PACKAGE⁽²⁾
–40°C to 85°C	Adjustable from 1.5 to 3.3	TPS61010DGS	AIP	10-Pin MSOP
	1.5	TPS61011DGS	AIQ
	1.8	TPS61012DGS	AIR
	2.5	TPS61013DGS	AIS
	2.8	TPS61014DGS	AIT
	3.0	TPS61015DGS	AIU
	3.3	TPS61016DGS	AIV
	Adjustable from 1.5 to 3.3	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 (for example, 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 (for example, 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.

6 Pin Configuration and Functions

DGS PACKAGE

10 PINS

(TOP VIEW)

TPS61010 TPS61011 TPS61012 TPS61013 TPS61014 TPS61015 TPS61016 dgs10_pkg_slvs314.gif

DRC PACKAGE

10 PINS

(TOP VIEW)

TPS61010 TPS61011 TPS61012 TPS61013 TPS61014 TPS61015 TPS61016 drc10_pkg_slvs314.gif

Pin Functions

PIN			I/O	DESCRIPTION
NAME	DRG NO.	DRC NO.	I/O	DESCRIPTION
ADEN	8	8	I	Autodischarge output. 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.
FB	3	3	I	Feedback input for adjustable output voltage version TPS61010. Output voltage is programmed depending on the output voltage divider connected there. For the fixed output voltage versions, leave FB-pin unconnected.
GND	4	4		Ground
LBI	9	9	I	Low-battery detector input. A low battery warning is generated at LBO when the voltage on LBI drops 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.
VBAT	6	6	I	Supply pin
VOUT	5	5	O	Output voltage. Internal resistor divider sets regulated output voltage in fixed output voltage versions.

7 Specifications

7.1 Absolute Maximum Ratings

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

		MIN	MAX	UNIT
Input voltage	VBAT, VOUT, EN, LBI, FB, ADEN	–0.3	3.6	V
Input voltage	SW	–0.3	7	V
Voltage	LBO, COMP	–0.3	3.6	V
Operating free-air temperature range, T_A		–40	85	°C
Maximum junction temperature, T_J			150	°C
Storage temperature range, T_stg		–65	150	°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.

7.2 ESD Ratings

			VALUEMAX	UNIT
V_(ESD)	Electrostatic discharge	Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins⁽¹⁾	±2000	V
V_(ESD)	Electrostatic discharge	Charged device model (CDM), per JEDEC specification JESD22-C101, all pins⁽²⁾	±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.

7.3 Recommended Operating Conditions

		MIN	NOM	MAX	UNIT
V_I	Supply voltage at VBAT	0.8		VOUT	V
I_O	Maximum output current at VIN = 1.2 V	100			mA
I_O	Maximum output current at VIN = 2.4 V	200			mA
L1	Inductor	10	33		µH
C_I	Input capacitor		10		µF
C_o	Output capacitor	10	22	47	µF
T_J	Operating virtual junction temperature	–40		125	°C

7.4 Thermal Information

THERMAL METRIC⁽¹⁾		TPS6101x	TPS61010	UNIT
		DGS	DRC
		10 PINS
R_θJA	Junction-to-ambient thermal resistance	161.8	43.1	°C/W
R_θJC(top)	Junction-to-case (top) thermal resistance	36.3	67.4
R_θJB	Junction-to-board thermal resistance	82.7	18.1
ψ_JT	Junction-to-top characterization parameter	1.3	1.6
ψ_JB	Junction-to-board characterization parameter	81.1	18.2
R_θJC(bot)	Junction-to-case (bottom) thermal resistance	N/A	5.2

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

7.5 Electrical Characteristics

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

PARAMETER		TEST CONDITIONS		MIN	TYP	MAX	UNIT
V_I	Minimum input voltage for start-up	R_L = 33 Ω			0.85	0.9	V
	Minimum input voltage for start-up	R_L = 3 kΩ, T_A = 25 °C		0.8
	Input voltage once started	I_O = 100 mA		0.8
V_O	Programmable output voltage range	TPS61010, I_OUT = 100 mA		1.5		3.3	V
	Output voltage	TPS61011, 0.8 V < V_I < V_O, I_O = 0 to 100 mA		1.45	1.5	1.55	V
		TPS61012, 0.8 V < V_I < V_O, I_O = 0 to 100 mA		1.74	1.8	1.86	V
		TPS61013, 0.8 V < V_I < V_O, I_O = 0 to 100 mA		2.42	2.5	2.58	V
		TPS61013, 1.6 V < V_I < V_O, I_O = 0 to 200 mA		2.42	2.5	2.58	V
		TPS61014, 0.8 V < V_I < V_O, I_O = 0 to 100 mA		2.72	2.8	2.88	V
		TPS61014, 1.6 V < V_I < V_O, I_O = 0 to 200 mA		2.72	2.8	2.88	V
		TPS61015, 0.8 V < V_I < V_O, I_O = 0 to 100 mA		2.9	3.0	3.1	V
		TPS61015, 1.6 V < V_I < V_O, I_O = 0 to 200 mA		2.9	3.0	3.1	V
		TPS61016, 0.8 V < V_I < V_O, I_O = 0 to 100 mA		3.2	3.3	3.4	V
		TPS61016, 1.6 V < V_I < V_O, I_O = 0 to 200 mA		3.2	3.3	3.4	V
I_O	Maximum continuous output current	V_I > 0.8 V		100			mA
I_O	Maximum continuous output current	V_I > 1.8 V		250			mA
I_(SW)	Switch current limit	TPS61011, once started		0.39	0.48		A
		TPS61012, once started		0.54	0.56
		TPS61013, once started		0.85	0.93
		TPS61014, once started		0.95	1.01
		TPS61015, once started		1	1.06
		TPS61016, once started		1.07	1.13
V_(FB)	Feedback voltage			480	500	520	mV
f	Oscillator frequency			420	500	780	kHz
D	Maximum duty cycle				85%
r_DS(on)	NMOS switch on-resistance	V_O = 1.5 V			0.37	0.51	Ω
r_DS(on)	PMOS switch on-resistance	V_O = 1.5 V			0.45	0.54	Ω
r_DS(on)	NMOS switch on-resistance	V_O = 3.3 V			0.2	0.37	Ω
r_DS(on)	PMOS switch on-resistance	V_O = 3.3 V			0.3	0.45	Ω
	Line regulation ⁽¹⁾	V_I = 1.2 V to 1.4 V, I_O = 100 mA			0.3		%/V
	Load regulation ⁽¹⁾	V_I = 1.2 V; I_O = 50 mA to 100 mA			0.1		%/V
	Autodischarge switch resistance				300	400	Ω
	Residual output voltage after autodischarge	ADEN = VBAT; EN = GND				0.4	V
V_IL	LBI voltage threshold ⁽²⁾	V_(LBI) voltage decreasing		480	500	520	mV
	LBI input hysteresis				10		mv
	LBI input current				0.01	0.03
V_OL	LBO output low voltage	V_(LBI) = 0 V, V_O = 3.3 V, I_(OL) = 10 µA			0.04	0.2	V
	LBO output leakage current	V_(LBI) = 650 mV, V_(LBO) = V_O				0.03	µA
I_(FB)	FB input bias current (TPS61010 only)	V_(FB) = 500 mV			0.01	0.03
V_IL	EN and ADEN input low voltage	0.8 V < V_BAT < 3.3 V				0.2 × VBAT	V
V_IH	EN and ADEN input high voltage	0.8 V < V_BAT < 3.3 V		0.8 ×VBAT			V
	EN and ADEN input current	EN and ADEN = GND or VBAT			0.01	0.03	µA
I_q	Quiescent current into pins VBAT/SW and VOUT	I_L = 0 mA, V_EN = V_I	VBAT/SW		31	46	µA
I_q	Quiescent current into pins VBAT/SW and VOUT	I_L = 0 mA, V_EN = V_I	V_O		5	8	µA
I_off	Shutdown current from power source	V_EN = 0 V, ADEN = VBAT, T_A= 25°C			1	3	µA

(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 V_BAT.

7.6 Typical Characteristics

7.6.1 Table of Graphs

		FIGURE
Maximum output current	vs Input voltage for V_O = 2.5 V, 3.3 V	Figure 1
Maximum output current	vs Input voltage for V_O = 1.5 V, 1.8 V	Figure 2
Efficiency	vs Output current for V_I = 1.2 VV_O = 1.5 V, L1 = Sumida CDR74 - 10 µH	Figure 3
	vs Output current for V_I = 1.2 VV_O = 2.5 V, L1 = Sumida CDR74 - 10 µH	Figure 4
	vs Output current for VIN = 1.2 VV_O = 3.3 V, L1 = Sumida CDR74 - 10 µH	Figure 5
	vs Output current for V_I = 2.4 VV_O = 3.3 V, L1 = Sumida CDR74 - 10 µH	Figure 6
	vs Input voltage for I_O = 10 mA, I_O = 100 mA, I_O = 200 mAV_O = 3.3 V, L1 = Sumida CDR74 - 10 µH	Figure 7
	TPS61016, VBAT = 1.2 V, I_O = 100 mA	Figure 8
	Sumida CDRH6D38 - 10 µH
	Sumida CDRH5D18 - 10 µH
	Sumida CDRH74 - 10 µH
	Sumida CDRH74B - 10 µH
	Coilcraft DS 1608C - 10 µH
	Coilcraft DO 1608C - 10 µH
	Coilcraft DO 3308P - 10 µH
	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
Output voltage	vs Output current TPS61011	Figure 9
	vs Output current TPS61013	Figure 10
	vs Output current TPS61016	Figure 11
Minimum supply start-up voltage	vs Load resistance	Figure 12
No-load supply current	vs Input voltage	Figure 13
Shutdown supply current	vs Input voltage	Figure 14
Switch current limit	vs Output voltage	Figure 15