TPS61200DRCR

The TPS61200DRCR is an electronic component. View the full TPS61200DRCR datasheet below including electrical characteristics, absolute maximum ratings.

Overview

The TPS6120x devices provide a power supply solution for products powered by single-cell, 2-cell, or 3-cell alkaline, NiCd, or NiMH batteries, or single-cell Li-Ion or Li-Polymer batteries. It is also used in fuel cell or solar cell powered devices, where the ability to handle low input voltages is crucial. The possible output current depends on the input to output voltage ratio. When using a single-cell Li-Ion or Li-Polymer battery and discharging it down to 2.6V, the device provides up to 600mA output current at 5V output. This boost converter is based on a fixed-frequency, pulse-width modulation (PWM) controller that uses synchronous rectification to obtain maximum efficiency. Under low load current conditions, the converter enters power save mode to maintain high efficiency over a wide load current range. Power save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The average input current is limited to a maximum of 1500mA. The output voltage can be programmed by an external resistor divider, or internally fixed on-chip. The converter can be disabled to significantly reduce battery consumption. During shutdown, the load is completely disconnected from the battery. The device is available in a 10-pin 3 mm x 3 mm VSON package.

Features

1 · Efficiency higher than 90% under the following conditions:
-3.3V 300mA output current, at 3.3V (VIN ≥ 2.4V)
-Output current of 600mA at 5V (VIN ≥ 3V)
Automatic transition between boost mode and buck conversion mode
Device quiescent current less than 50 μA
Starts into full load at an input voltage of 0.5V
Operating input voltage range from 0.3V to 5.5V
Programmable undervoltage lockout threshold
Output short-circuit protection under all operating conditions
1.8V to 5.5V fixed and adjustable output voltage options
Power save mode for improved efficiency at low output power
Forced fixed operating frequency
Load disconnect during shutdown
Overtemperature protection
Small 3 mm x 3 mm VSON-10 package

Applications

All single-cell, two-cell, and three-cell alkaline, NiCd, or NiMH battery or single-cell lithium battery powered products
Fuel cell and solar cell powered products
Portable audio players
Personal Digital Assistants (PDAs)
Mobile phones
Personal medical products
White LED drivers

Pin Configuration

Pin Functions

Pin Functions

PIN	PIN	I/O	DESCRIPTION
NAME	NO.	I/O	DESCRIPTION
EN	6	I	Enable input (High = enabled, Low = disabled). Do not leave floating.
Exposed thermal pad	-	-	Must be soldered to achieve appropriate power dissipation and mechanical reliability. Should be connected to PGND.
FB	10	I	Voltage feedback of adjustable versions, must be connected to V OUT at fixed output voltage versions
GND	9	-	Control / logic ground
PGND	4	-	Power ground
PS	8	I	Enable/disable Power Save mode (High = disabled, Low = enabled). Do not leave floating.
L	3	I	Connection for Inductor
UVLO	7	I	Undervoltage lockout comparator input. Must be connected to VAUX if not used
VAUX	1	I/O	Supply voltage for control stage
VIN	5	I	Boost converter input voltage
VOUT	2	O	Boost converter output

Pin Functions

Electrical Characteristics

over recommended junction temperature range and over recommended input voltage range (typical at an ambient temperature range of 25°C) (unless otherwise noted)

PARAMETER	PARAMETER	PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
DC-DC STAGE	DC-DC STAGE	DC-DC STAGE	DC-DC STAGE	DC-DC STAGE	DC-DC STAGE	DC-DC STAGE	DC-DC STAGE
V IN	Input voltage range	Input voltage range		0.3		5.5	V
V IN	Minimum input voltage at startup	Minimum input voltage at startup				0.5	V
V OUT	TPS61200 output voltage range	TPS61200 output voltage range		1.8		5.5	V
V FB	TPS61200 feedback voltage	TPS61200 feedback voltage		495	500	505	mV
V OUT	TPS61201 output voltage	TPS61201 output voltage	V IN < V OUT , PS = High	3.27	3.3	3.33	V
V OUT	TPS61202 output voltage	TPS61202 output voltage	V IN < V OUT , PS = High	4.95	5.0	5.05	V
f	Oscillator frequency	Oscillator frequency		1250		1650	kHz
I LIM	average inductor current limit	average inductor current limit	V OUT = 3.3 V	1200	1350	1500	mA
R DS(on)	Rectifying switch on resistance	Rectifying switch on resistance	V OUT = 3.3 V		180		m Ω
R DS(on)	Main switch on resistance	Main switch on resistance	V OUT = 3.3 V		150		m Ω
	Line regulation	Line regulation	V IN < V OUT , PS = High		0.1%	0.5%
Load regulation	Load regulation	Load regulation	V IN < V OUT , PS = High		0.1%	0.5%
		V IN	I = 0 mA, V = V = 1.2 V,		1	2	μ A
I Q	Quiescent current	V OUT	O EN IN V OUT = 3.3 V, V AUX = 3.3 V		50	70	μ A
	V	AUX	PS = Low		4	6	μ A
I SD	Shutdown current	V IN			0.5	1.5	μ A
		V AUX	V EN = 0 V, V IN = 1.2 V		1	2	μ A
I LKG Input leakage current ( L)	I LKG Input leakage current ( L)	I LKG Input leakage current ( L)	V EN = 0 V, V IN = 1.2 V, V L = 1.2 V		0.01	1	μ A
CONTROL STAGE	CONTROL STAGE	CONTROL STAGE	CONTROL STAGE	CONTROL STAGE	CONTROL STAGE	CONTROL STAGE	CONTROL STAGE
V AUX	Auxiliary Output Voltage	Auxiliary Output Voltage		2.4		5.5	V
V IL	Low level input threshold voltage (EN)	Low level input threshold voltage (EN)	V IN < 0.8 V			0.1 × V IN	V
V IH	High level input threshold voltage (EN)	High level input threshold voltage (EN)	V IN < 0.8 V	0.9 × V IN			V
V IL	Low level input threshold voltage (EN)	Low level input threshold voltage (EN)	0.8 V ≤ V IN ≤ 1.5 V			0.2 × V IN	V
V IH	High level input threshold voltage (EN)	High level input threshold voltage (EN)	0.8 V ≤ V IN ≤ 1.5 V	0.8 × V IN			V
V IL	Low level input threshold voltage (EN)	Low level input threshold voltage (EN)	V IN > 1.5 V			0.4	V
V IH	High level input threshold voltage (EN)	High level input threshold voltage (EN)	V IN > 1.5 V	1.2			V
V IL	Low level input threshold voltage (PS)	Low level input threshold voltage (PS)				0.4	V
V IH	High level input threshold voltage (PS)	High level input threshold voltage (PS)		1.2			V
I LKG	Input leakage current (EN, PS)	Input leakage current (EN, PS)	EN, PS = GND or V IN		0.01	0.1	μ A
V UVLO	Undervoltage lockout threshold	Undervoltage lockout threshold	Falling UVLO voltage	235	250	265	mV
V UVLO	Undervoltage lockout threshold	Undervoltage lockout threshold	Rising UVLO voltage	330	350	370	mV
I LKG	Input leakage current (UVLO)	Input leakage current (UVLO)	V UVLO = 0.5 V			0.3	μ A
V OVP	Overvoltage protection threshold	Overvoltage protection threshold		5.5		7	V
	Thermal shutdown temperature	Thermal shutdown temperature	Rising temperature		140		°C
	Thermal shutdown temperature hysteresis	Thermal shutdown temperature hysteresis			20		°C

Absolute Maximum Ratings

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

		MIN	MAX	UNIT
V IN	Input voltage range on VIN, L, VAUX, VOUT, PS, EN, FB, UVLO	-0.3	7	V
T J	Operating junction temperature	-40	150	°C
T stg	Storage temperature	-65	150	°C

Recommended Operating Conditions

		MIN	MAX	UNIT
V IN	Input voltage at VIN	0.3	5.5	V
T A	Operating free air temperature range	-40	85	°C
T J	Operating junction temperature range	-40	125	°C

Thermal Information

		TPS6120x	TPS6120x
	THERMAL METRIC (1)	DRC	DSC
		10 PINS	10 PINS
R θ JA	Junction-to-ambient thermal resistance	41.2	40.4
R θ JC(top)	Junction-to-case (top) thermal resistance	62.8	37.8
R θ JB	Junction-to-board thermal resistance	16.6	15.4
ψ JT	Junction-to-top characterization parameter	1.2	0.3
ψ JB	Junction-to-board characterization parameter	16.8	15.6
R θ JC(bot)	Junction-to-case (bottom) thermal resistance	4.1	2.8

Typical Application

TPS61200, TPS61201, TPS61202

ZHCS002E -MARCH 2007-REVISED DECEMBER 2014

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