TPS61178RNWR.A

[TPS61178](http://www.ti.com/product/tps61178?qgpn=tps61178)

Manufacturer

Texas Instruments

Overview

Part: TPS61178 from Texas Instruments

Type: Synchronous Boost Converter

Key Specs:

Input Voltage Range: 2.7 V to 20 V
Output Voltage Range: 4.5 V to 20 V
Programmable Switch Peak Current: up to 10 A
Integrated FETs: Two 16-mΩ
Efficiency: up to 96% (VIN = 7.2 V, VOUT = 16 V, IOUT = 2 A)
Adjustable Switching Frequency: up to 2.2 MHz
External Clock Synchronization: 200 kHz to 2.2 MHz

Features:

Gate Driver for Load Disconnect
Hiccup Short Protection
Over Voltage Protection
Auto PFM Operation (TPS61178)
Forced PWM Mode (TPS611781)

Applications:

Portable Speaker
Source Driver of LCD Display
Supply for the Power Amplifier
Supply for the Motor Driver
USB Type-C Power Delivery

Package:

VQFN Hotrod Package: 3.0-mm x 3.5-mm 13-pin
QFN (13): 3.00 mm x 3.5 mm

Features

¹ Input Voltage Range: 2.7 V to 20 V
Output Voltage Range: 4.5 V to 20 V
Programmable Switch Peak Current: up to 10 A
Two 16-mΩ FETs Integrated
Efficiency up to 96%: VIN = 7.2 V, VOUT = 16 V, IOUT = 2 A
Adjustable Switching Frequency: up to 2.2 MHz
External Clock Synchronization: 200 kHz to 2.2 MHz
Gate Driver for Load Disconnect
Hiccup Short Protection
Over Voltage Protection
Auto PFM Operation TPS61178
Forced PWM Mode TPS611781
3.0-mm x 3.5-mm 13-pin VQFN Hotrod Package
Create a Custom Design Using the TPS61178 With the WEBENCH® Power Designer

Applications

• Portable Speaker

Source Driver of LCD Display
Supply for the Power Amplifier
Supply for the Motor Driver
USB Type-C Power Delivery

Pin Configuration

Pin Functions

NAME
FREQ / SYNC
AGND
ILIMIT
COMP
FB
PGND
SW
VOUT
DISDRV
VCC
EN
VIN
BST

Electrical Characteristics

over operating free-air temperature range, VIN = 2.7 V to 14 V and VOUT = 16 V, VCC = 6 V, RLIMIT = 80.6 kΩ. Typical values are at T^J = 25°C, (unless otherwise noted)

			MIN	TYP	MAX	UNIT
POWER SUPPLY
VIN	Input voltage range		2.7		20	V
	Input voltage under voltage lockout	VIN rising		2.6	2.7	V
VIN_UVLO	(UVLO) threshold	VIN falling		2.2	2.3	V
VIN_HYS	VIN UVLO hysteresis			400		mV
VCC	VCC regulation voltage	ICC = 5mA, VIN = 8V		6		V
VCC_UVLO	VCC UVLO threshold	VCC falling		2.1		V
	Quiescent current into VIN pin	IC enabled, no load, no ext. FET VIN = 6 V, VOUT = 20 V, VFB = 1.3 V, TJ up to 85 ⁰C		1.5	3	μA
IQ	Quiescent current into VIN pin	IC enabled, no load, no ext. FET VIN = 20 V, VOUT = 20 V, VFB = 1.3 V,TJ up to 85 ⁰C		270	320	μA
(TPS61178)	Quiescent current into VOUT pin	IC enabled, no load, no ext. FET VIN = 6 V, VFB = 1.3 V, VOUT = 20 V, TJ up to 85 ⁰C		250	300	μA
	Quiescent current into VOUT pin	IC enabled, no load, no ext. FET VIN = 20 V, VOUT = 20 V, VFB = 1.3 V, TJ up to 85 ⁰C		5	12	μA
		IC disabled, VIN = 6 V, –40 °C ≤ TJ ≤ 85°C		1	3.5	μA
ISD	Shutdown current into VIN pin	IC disabled, VIN = 20 V, –40 °C ≤ TJ ≤ 85°C		3	6	μA
ILS_LKG	Reverse leakage current into SW	IC disabled, VIN = VOUT = SW = 20 V –40 °C ≤ TJ ≤ 85°C		0.1	6.5	μA
OUTPUT VOLTAGE
VOUT	Output voltage range	Freq = 500kHz	4.5		20	V
VOVP	Output over-voltage protection threshold	VIN = 8 V, VOUT rising	20.5	21	21.5	V
POWER SWITCHES
RDS(on)	High-side MOSFET on resistance	VCC = 6 V		16	25	mΩ
	Low-side MOSFET on resistance	VCC = 6 V		16	25	mΩ
Gm	Power stage trans-conductance (peak current ratio with comp voltage)	VCC = 6 V		12		A/V
CURRENT LIMIT
ILIM_SW	TPS61178	RLIMIT = 80.6 kΩ	6.4	8	9.4	A
ILIM_SW	TPS611781	RLIMIT = 80.6 kΩ	5.7	7.4	8.7	A
ILIM_SHORT	TPS61178 short current limit			20		A
VOLTAGE REFERNCE
VREF	Reference Voltage at FB pin	PWM mode	1.180	1.198	1.210	V
		PFM mode		101%		VREF
IFB_LKG	Leakage current into FB pin			10	60	nA
EN / SYNC LOGIC
VEN_H	EN Logic high threshold				1.2	V
VEN_L	EN Logic Low threshold		0.4			V

Absolute Maximum Ratings

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

		MIN	MAX	UNIT
	BST	–0.3	SW + 7	V
Voltage range at terminals (2)	VIN, SW, VOUT, DISCRG, EN	–0.3	23	V
	VCC, FB, COMP, FREQ / SYNC, ILIMIT	–0.3	7	V
TJ	Operating junction temperature	–40	150	°C
Tstg	Storage temperature	–65	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) All voltage values are with respect to network ground terminal.

Recommended Operating Conditions

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

		MIN	NOM	MAX	UNIT
VIN	Input voltage	2.7		20	V
VOUT	Outputvoltage	4.5		20	V
L	Effective inductance range	0.47	3.3		μH
RFB	Feedback resistance (low side)			200	kΩ
TJ	Operating junction temperature	–40		125	°C

Thermal Information

THERMAL METRIC(1)		TPS61178	UNIT
		RNR (QFN Package) 12 PINS
RθJA	Junction-to-ambient thermal resistance	60.2	°C/W
RθJC(top)	Junction-to-case (top) thermal resistance	28.6	°C/W
RθJB	Junction-to-board thermal resistance	14.5	°C/W
ψJT	Junction-to-top characterization parameter	0.4	°C/W
ψJB	Junction-to-board characterization parameter	14.5	°C/W
RθJC(bot)	Junction-to-case (bottom) thermal resistance	0.9	°C/W

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
TPS61178	Texas Instruments	—
TPS611781	Texas Instruments	—
TPS611781RNWR	Texas Instruments	—
TPS611781RNWR.A	Texas Instruments	—
TPS611781RNWT	Texas Instruments	—
TPS611781RNWT.A	Texas Instruments	—
TPS61178RNWR	Texas Instruments	13-PowerVFQFN
TPS61178RNWT	Texas Instruments	—
TPS61178RNWT.A	Texas Instruments	—
TPS61178X	Texas Instruments	—

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