Linear Technology LTC1165CN8, LTC1165, LTC1163CS8, LTC1163CN8, LTC1163 Datasheet

FEATURES

■Operates from 1.8V to 6V

■0.01μA Standby Current

■95μA Operating Current per Channel at 3.3V

■Fully Enhances N-Channel Switches

■No External Charge Pump Components

■Built-In Gate Voltage Clamps

■Easily Protected Against Supply Transients

■Controlled Switching ON and OFF Times

■Compatible with 5V, 3V and Sub-3V Logic Families

■Available in 8-Pin SOIC

APPLICATIOUS

■PCMCIA Card 3.3V/5V Switch

■2-Cell High-Side Load Switching

■Boost Regulator Shutdown to Zero Standby Current

■Replacing P-Channel Switches

■Notebook Computer Power Management

■Palmtop Computer Power Management

■Portable Medical Equipment

■Mixed 3.3V and 5V Supply Switching

LTC1163/LTC1165

Triple 1.8V to 6V High-Side MOSFET Drivers

DESCRIPTIOU

The LTC1163/LTC1165 triple low voltage MOSFET drivers make it possible to switch supply or ground referenced loadsthroughinexpensive,lowRDS(ON) N-channelswitches from as little as a 1.8V supply. The LTC1165 has inverting inputs and makes it possible to directly replace P-channel MOSFET switches while maintaining system drive polarity. The LTC1163 has noninverting inputs.

Micropower operation, with 0.01μA standby current and 95μA operating current, coupled with a power supply range of 1.8V to 6V, make the LTC1163/LTC1165 ideally suited for 2- to 4-cell battery-powered applications. The LTC1163/LTC1165 are also well suited for sub-3V, 3.3V and 5V nominal supply applications.

The LTC1163/LTC1165 internal charge pumps boost the gate voltage 8V above a 3.3V rail, fully enhancing inexpensive N-channels for highor low-side switch applications.

The LTC1163/LTC1165 are available in both an 8-pin DIP and an 8-pin SOIC.

TYPICAL APPLICATIOU

	2-Cell Triple High-Side Switch
(1.8V TO 3V)
+ 2-CELL	+
BATTERY	10μF
PACK									(V)
			RFD14N05LSM		RFD14N05LSM		RFD14N05LSM
									VOLTAGE
CONTROL	IN1	VS	OUT1
	IN2	LTC1163 OUT2
LOGIC				2-CELL		2-CELL		2-CELL	OUTPUTGATE
OR μP		LTC1165
	IN3		OUT3
		GND
LTC1163 HAS NONINVERTING INPUTS				LOAD		LOAD		LOAD
LTC1165 HAS INVERTING INPUTS
							LTC1163/65 • TA01

MOSFET Switch Gate Voltage

18

16

14

12

10

8

6

4

2

0

0

1

2

3

4

5

6

SUPPLY VOLTAGE (V)

LTC1163/65 • TA02

1

LTC1163/LTC1165

ABSOLUTE WAXIWUW RATIUGS

Supply Voltage .........................................................	7V
Any Input Voltage ..........................	7V to (GND – 0.3V)
Any Output Voltage .......................	20V to (GND – 0.3V)
Current (Any Pin).................................................	50mA

Operating Temperature Range	0°C to 70°C
LTC1163C/LTC1165C ...........................
Storage Temperature Range ................	– 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................	300°C

PACKAGE/ORDER IUFORWATIOU

		TOP VIEW
IN1				VS
	1		8
IN2				OUT1
	2		7
IN3				OUT2
	3		6
GND				OUT3
	4		5

N8 PACKAGE

8-LEAD PLASTIC DIP

TJMAX = 100°C, θJA = 130°C/W

ORDER PART

NUMBER

LTC1163CN8

LTC1165CN8

			TOP VIEW
IN1					VS
	1			8
IN2					OUT1
	2			7
IN3					OUT2
	3			6
GND					OUT3
	4			5

S8 PACKAGE

8-LEAD PLASTIC SOIC

TJMAX = 100°C, θJA = 150°C/W

ORDER PART

NUMBER

LTC1163CS8

LTC1165CS8

S8 PART MARKING

1163

1165

ELECTRICAL CHARACTERISTICS VS = 1.8V to 6V, TA = 25°C, unless otherwise noted.

				LTC1163C/LTC1165C
SYMBOL	PARAMETER	CONDITIONS		MIN	TYP	MAX	UNITS
IQ	Quiescent Current OFF	VS = 1.8V, VIN1 = VIN2 = VIN3 = VOFF (Note 1,2)			0.01	1	μA
		VS = 3.3V, VIN1 = VIN2 = VIN3 = VOFF (Note 1,2)			0.01	1	μA
		VS = 5V, VIN1 = VIN2 = VIN3 = VOFF (Note 1,2)			0.01	1	μA
	Quiescent Current ON	VS = 1.8V, VIN = VON (Note 2,3)			60	120	μA
		VS = 3.3V, VIN = VON (Note 2,3)			95	200	μA
		VS = 5V, VIN = VON (Note 2,3)			180	400	μA
VINH	Input High Voltage	1.8V < VS < 2.7V	●	80% × VS			V
		2.7V < VS < 6V	●	70% × VS			V
VINL	Input Low Voltage	1.8V < VS < 6V	●			15% × VS	V
IIN	Input Current	0V ≤ VIN ≤ VS	●			±1	μA
CIN	Input Capacitance				5		pF
VGATE – VS	Gate Voltage Above Supply	VS = 1.8V, VIN = VON (Note 2)	●	3.5	4.1	6.0	V
		VS = 2V, VIN = VON (Note 2)	●	4.0	4.6	7.0	V
		VS = 2.2V, VIN = VON (Note 2)	●	4.5	5.2	8.0	V
		VS = 3.3V, VIN = VON (Note 2)	●	6.0	8.0	9.5	V
		VS = 5V, VIN = VON (Note 2)	●	5.0	9.0	13.0	V
tON	Turn-ON Time	VS = 3.3V, CGATE = 1000pF					μs
		Time for VGATE > VS + 1V		40	120	400
		Time for VGATE > VS + 2V		60	180	600	μs
		VS = 5V, CGATE = 1000pF					μs
		Time for VGATE > VS + 1V		30	95	300
		Time for VGATE > VS + 2V		40	130	400	μs

2

LTC1163/LTC1165

ELECTRICAL CHARACTERISTICS VS = 1.8V to 6V, TA = 25°C, unless otherwise noted.

					LTC1163C/LTC1165C
SYMBOL	PARAMETER	CONDITIONS			MIN	TYP	MAX	UNITS
tOFF	Turn-OFF Time	VS = 3.3V, CGATE = 1000pF						μs
		Time for VGATE < 0.5V			20	65	200
		VS = 5V, CGATE = 1000pF						μs
		Time for VGATE < 0.5V			15	45	150
The ● denotes specifications which apply over the full operating			Note 2: LTC1163: VOFF = 0V, VON = VS. LTC1165: VOFF = VS, VON = 0V
temperature range.			Note 3: Quiescent current ON is per driver and is measured independently.

Note 1: Quiescent current OFF is for all channels in OFF condition.

TYPICAL PERFORWAUCE CHARACTERISTICS

Standby Supply Current

	5
				TA =	25°C
	4			ALL THREE INPUTS = OFF
(μA)
	3
CURRENT
	2
SUPPLY
	1
	0
	–1
				1		2	3			4		5		6
	0
						SUPPLY VOLTAGE (V)
												LTC1163/65 • TPC01
		Input Threshold Voltage
	6
				TA =	25°C
(V)	5
VOLTAGE	4
THRESHOLD	2
	3							VHI
INPUT											VLO
	1
	0
				1		2	3			4		5		6
	0

SUPPLY VOLTAGE (V)

LTC1163/65 • TPC04

Supply Current per Driver ON

	600
				TA =	25°C
	500			ONE INPUT = ON
				OTHER INPUTS = OFF
(μA)	400
CURRENT
	300
SUPPLY
	200
	100
	0
				1		2			3		4			5			6
	0
						SUPPLY VOLTAGE (V)
													LTC1163/65 • TPC02
	Turn-ON Time
	600
				CGATE = 1000pF
(μs)	500
	400
TIME	300
TURN-ON
	200
												VGS = 2V
	100
												VGS = 1V
	0
				1		2			3		4			5			6
	0

SUPPLY VOLTAGE (V)

LTC1163/65 • TPC05

Gate Voltage Above Supply

	12
			TA =	25°C
	10
(V)	8
S
– V	6
GATE
V	4
	2
	0

0 1 2 3 4 5 6 SUPPLY VOLTAGE (V)

LTC1163/65 • TPC03

Turn-OFF Time

	300
			CGATE	= 1000pF
	250		TIME FOR VGATE < 0.5V
(μs)	200
TIME	150
-OFF
TURN	100
	50
	0
			1		2		3		4	5		6
	0

SUPPLY VOLTAGE (V)

LTC1163/65 • TA06

3