Datasheet

ManualsBrandsANALOG DEVICES ManualsPMICsPMIC - ELCs High side UDFN 6

Logic Controlled, High-Side Power Switch

with Reverse Current Blocking

Data Sheet

ADP195

Rev. C

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FEATURES

Ultralow on resistance (RDS

)

50 mΩ @ 3.6 V

55 mΩ @ 2.5 V

65 mΩ @ 1.8 V

100 mΩ @ 1.2 V

Input voltage range: 1.1 V to 3.6 V

1.1 A maximum continuous operating current

Low enable control logic threshold can be operated from

1.2 V to 3.3 V

Low 1 μA (typical) ground current @ 1.8 V

Low 4 μA (maximum) reverse current @ 3.6 V

Ultralow shutdown current: 0.7 μA (typical) @ 1.8 V

Reverse current blocking

Tiny 4-ball wafer level chip scale package (WLCSP)

1.0 mm × 1.0 mm, 0.5 mm pitch

Tiny 6-lead lead frame chip scale package (LFCSP)

2.0 mm × 2.0 mm × 0.55 mm, 0.65 mm pitch

APPLICATIONS

Mobile phones

Digital cameras and audio devices

GPS devices

Personal media players

Portable and battery-powered equipment

TYPICAL APPLICATIONS CIRCUIT

GND

–

LOAD

VIN VOUT

ADP195

LEVEL SHIFT

AND SLEW

RATE CONTROL

OFF

08679-001

REVERSE

POLARITY

PROTECTION

Figure 1.

GENERAL DESCRIPTION

The ADP195 is a high-side load switch designed for operation

between 1.1 V to 3.6 V and protected against reverse current

flow from output to input. This load switch provides power

domain isolation helping extended power domain isolation. The

device contains a low on-resistance, P-channel MOSFET that

supports over 1.1 A of continuous current and minimizes power

loss. The low 1 μA of quiescent current and ultralow shutdown

current make the ADP195 ideal for battery-operated portable

equipment. The built-in level shifter for enable logic makes the

ADP195 compatible with many processors and GPIO

controllers.

In addition to operating performance, the ADP195 occupies

minimal printed circuit board (PCB) space with an area of less

than 1.0 mm

and a height of 0.60 mm.

It is available in an ultrasmall 1 mm × 1 mm, 4-ball, 0.5 mm

pitch WLCSP. A 6-lead 2 mm × 2 mm × 0.55 mm, 0.65 mm

pitch LFCSP is also available.

Summary of content (12 pages)

PAGE 1
FEATURES Ultralow on resistance (RDSON) 50 mΩ @ 3.6 V 55 mΩ @ 2.5 V 65 mΩ @ 1.8 V 100 mΩ @ 1.2 V Input voltage range: 1.1 V to 3.6 V 1.1 A maximum continuous operating current Low enable control logic threshold can be operated from 1.2 V to 3.3 V Low 1 μA (typical) ground current @ 1.8 V Low 4 μA (maximum) reverse current @ 3.6 V Ultralow shutdown current: 0.7 μA (typical) @ 1.8 V Reverse current blocking Tiny 4-ball wafer level chip scale package (WLCSP) 1.0 mm × 1.0 mm, 0.
PAGE 2
ADP195 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Pin Configurations and Function Descriptions ............................5 Applications....................................................................................... 1 Typical Performance Characteristics ..............................................6 Typical Applications Circuit............................................................
PAGE 3
Data Sheet ADP195 SPECIFICATIONS VIN = 1.8 V, VEN = VIN, IOUT = 200 mA, TA = 25°C, unless otherwise noted. Table 1. Parameter INPUT VOLTAGE RANGE EN INPUT EN Input Threshold Symbol VIN Conditions TJ = −40°C to +85°C Min 1.1 VIH 0.29 0.45 EN Input Pull-Down Current VIN Shutdown Current REVERSE BLOCKING VOUT Current Hysteresis CURRENT Ground Current IEN 1.1 V ≤ VIN < 1.8 V, TJ = −40°C to +85°C 1.8 V ≤ VIN ≤ 3.6 V, TJ = −40°C to +85°C VIN = 1.8 V VEN = 0 V, VIN = 0 V, VOUT = 3.
PAGE 4
ADP195 Data Sheet ABSOLUTE MAXIMUM RATINGS Table 2. Parameter VIN, VIN1, VIN2 to GND VOUT, VOUT1, VOUT2 to GND EN to GND Continuous Drain Current TA = 25°C TA = 85°C Continuous Diode Current Storage Temperature Range Operating Junction Temperature Range Operating Ambient Temperature Range Soldering Conditions Rating −0.3 V to +4.0 V −0.3 V to +4.0 V −0.3 V to +4.0 V ±2 A ±1.
PAGE 5
Data Sheet ADP195 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS 2 VIN VOUT VOUT1 1 A VOUT2 2 TOP VIEW (Not to Scale) EN GND GND 3 08679-003 B 6 VIN1 ADP195 TOP VIEW (Not to Scale) 5 VIN2 4 EN 08679-104 1 NOTES 1. THE EXPOSED PAD MUST BE CONNECTED TO GND. Figure 3. 4-Ball WLCSP Pin Configuration Figure 4. 6-Lead LFCSP Pin Configuration Table 4. WLCSP Pin Function Descriptions Pin No. A1 A2 B1 B2 Mnemonic VIN VOUT EN GND Description Input Voltage. Output Voltage. Enable Input.
PAGE 6
ADP195 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS VIN = 1.8 V, VEN = VIN, CIN = COUT = 1 μF, TA = 25°C, unless otherwise noted. 0.10 0.16 IOUT = 10mA IOUT = 100mA IOUT = 200mA IOUT = 500mA IOUT = 1000mA 0.14 0.12 RDSON (Ω) RDSON (Ω) 0.08 0.06 0.04 0.10 0.08 IOUT = 10mA IOUT = 50mA IOUT = 100mA IOUT = 200mA IOUT = 500mA IOUT = 1000mA 0.06 0.04 0.02 –40 0 25 85 0 1.2 08679-004 0 0.02 125 TEMPERATURE (°C) 0.12 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 VIN = 1.2 VIN = 1.
PAGE 7
Data Sheet ADP195 VEN VEN VOUT 1 1 VOUT 2 2 LOAD CURRENT LOAD CURRENT CH2 2V BW M4µs T 10% A CH1 2.32V 08679-007 CH1 2V BW CH3 1A Ω BW CH1 2V BW CH2 1V CH3 100mA Ω BW Figure 11. Typical Rise Time and Inrush Current, VIN = 3.6 V, No Load 6 5 GROUND CURRENT (µA) VOUT 2 LOAD CURRENT A CH1 2.32V IOUT = 10mA IOUT = 100mA IOUT = 200mA IOUT = 300mA IOUT = 500mA 4 3 2 BW M4µs T 10% A CH1 2.
PAGE 8
ADP195 SHUTDOWN CURRENT (µA) 4 3 9 VIN = 1.2V VIN = 1.4V VIN = 2.0V VIN = 2.4V VIN = 2.8V VIN = 3.2V VIN = 3.4V VIN = 3.6V 8 SHUTDOWN CURRENT (µA) 5 Data Sheet 2 1 7 6 5 VIN = 1.2V VIN = 1.4V VIN = 1.6V VIN = 1.8V VIN = 2.0V VIN = 2.2V VIN = 2.6V VIN = 3.0V VIN = 3.2V VIN = 3.6V 4 3 2 0 –15 10 35 60 85 110 TEMPERATURE (°C) 0 –40 08679-013 2.0 4.0 VIN = 1.2V VIN = 1.4V VIN = 2.0V VIN = 2.4V VIN = 2.8V VIN = 3.2V VIN = 3.4V VIN = 3.6V 1.5 1.0 0.5 85 110 VIN = 2.8V VIN = 3.
PAGE 9
Data Sheet ADP195 THEORY OF OPERATION ADP195 quiescent current device with a nominal 4 MΩ pull-down resistor on its enable pin (EN). REVERSE POLARITY PROTECTION VIN VOUT The reverse current protection circuitry prevents current flow backward through the ADP195 when the output voltage is greater than the input voltage. A comparator senses the difference between the input and output voltages.
PAGE 10
ADP195 Data Sheet APPLICATIONS INFORMATION GROUND CURRENT ENABLE FEATURE The major source for ground current in the ADP195 is an internal 4 MΩ pull-down on the enable pin. Figure 22 shows the typical ground current when VEN = VIN and varies from 1.2 V to 3.6 V. The ADP195 uses the EN pin to enable and disable the VOUT pin under normal operating conditions. As shown in Figure 24, when a rising voltage on VEN crosses the active threshold, VOUT turns on.
PAGE 11
Data Sheet ADP195 TIMING VEN Turn-on delay is defined as the delta between the time that VEN reaches >1.2 V until VOUT rises to ~10% of its final value. The ADP195 includes circuitry to have typical 5 μs turn-on delay at 3.6 V VIN to limit the VIN inrush current. As shown in Figure 26, the turn-on delay is dependent on the input voltage. 5.0 2 VEN VIN = 1.2V VIN = 1.8V VIN = 2.5V VIN = 3.6V 4.5 4.0 LOAD CURRENT 3 3.5 CH1 2V BW CH2 1V CH3 200mA Ω BW 2.5 2.0 A CH1 2.32V Figure 28.
PAGE 12
ADP195 Data Sheet OUTLINE DIMENSIONS 0.640 0.595 0.550 0.370 0.355 0.340 0.990 0.950 0.910 SEATING PLANE 1 A 0.340 0.320 0.300 1.065 1.025 0.985 BALL A1 IDENTIFIER 2 B 0.50 REF BOTTOM VIEW 0.270 0.240 0.210 (BALL SIDE UP) 0.05 NOM COPLANARITY 110309-A TOP VIEW (BALL SIDE DOWN) Figure 30. 4-Ball Wafer Level Chip Scale Package [WLCSP] (CB-4-4) Dimensions shown in millimeters 1.70 1.60 1.50 2.00 BSC SQ 0.65 BSC 6 4 1.10 1.00 0.90 EXPOSED PAD 0.425 0.350 0.275 3 TOP VIEW 0.60 0.55 0.