MICREL MIC2514BM5 Datasheet

MIC2514 Micrel

MIC2514

IttyBitty™ Integrated High-Side Switch

Preliminary Information

General Description

The MIC2514 is an integrated high-side power switch that
consists of a TTL compatible input and protected
P-channel MOSFET. The MIC2514 can be used instead of
a separate high-side driver and MOSFET in many low­voltage applications.

The MIC2514 switches voltage ranging from 3V to 13.5V and
delivers more than 400mA continuous current. A slow turn­on feature prevents high inrush current when switching
capacitive loads. The internal control circuitry is powered

Features

• MOSFET on-resistance

1.5Ω typical at 5V

0.95Ω typical at 12V

• 3V to 13.5V input

•25µA typical on-state supply current at 5V

•<1µA typical off-state supply current at 5V

• Current limit

• Thermal shutdown

• Slow turn-on
from the unswitched 3V to 13.5V input.
Current limiting is internally fixed at approximately 1.9A and

requires no external components.

Applications

• 3.3V to 13.5V power management
Thermal shutdown turns off the output if the die temperature
exceeds approximately 170°C.

Ordering Information

The MIC2514 is available in the 5-lead SOT-23-5 package
with a temperature range of –40°C to +85°C.

Part Number Temperature Range Package

MIC2514BM5 –40°C to +85°C SOT-23-5

Pin Configuration Typical Application

MIC2514

13

CTL

2

GND

GND

2

F10

CTL

13

Part
Identification

NCOUT

IN

45

On
Off

3V to 13.5V

IN

4

OUT

0.1µF

Load

5-Lead SOT-23-5 (M5)

Pin Description

Pin Number Pin Name Pin Function

1 CTL Control (Input): Noninverting TTL compatible control input.

2 GND Ground
3 IN Supply Input: Output MOSFET source. Also supplies IC’s internal circuitry.

4 OUT Switch Output: Output MOSFET drain. Connect to switched side

5 NC Not internally connected. Connect to ground plane for lowest package

High-Side Power Switch

High = on, low = off.

Connect to supply.

of load.

thermal resistance.

6-18 1997

MIC2514 Micrel

Absolute Maximum Ratings

Supply Voltage (VIN) ...................................................+20V

Output Current (I
Control Input (V

Storage Temperature (TA) ....................... –65°C to +150°C

)...............................Internally Limited

OUT

) ....................................... –0.3V to 15V

CTL

Operating Ratings

Supply Voltage (VIN) .................................... +3V to +13.5V

Ambient Operating Temperature (TA) ........ –40°C to +85°C

Thermal Resistance

(θJA)...................................................................220°C/W

(θJC) ..................................................................130°C/W

Electrical Characteristics

VIN = +5V; TA = 25°C, except bold values indicate –40°C ≤ TA ≤ 85°C, Note 1; unless noted.
Parameter Condition Min Typ Max Units

Supply Current V

Control Input Voltage V

Output MOSFET Resistance VIN = 3V 2.4 4.5 Ω

Current Limit Threshold V

General Note: Devices are ESD protected, however, handling precautions recommended.
Note 1: Devices production tested at 25°C, but Devices guaranteed over indicated temperature range.

= logic 0, VIN = 5V 0.6 10 µA

CTL

V

= logic 0, VIN = 13.5V 2.0 25 µA

CTL

= logic 1, VIN = 3V 10 20 µA

V

CTL

V

= logic 1, VIN = 5V 25 40 µA

CTL

V

= logic 1, VIN = 13.5V 95 200 µA

CTL

= logic 0, 3V ≤ VIN ≤ 13.5V 0 0.8 V

CTL

= logic 1, 3V ≤ VIN ≤ 5V 0.8 1.45 2.0 V

V

CTL

V

= logic 1, 5V ≤ VIN ≤ 13.5V 0.8 1.65 2.3 V

CTL

V

= 5V 1.5 2.4 Ω

IN

= 12V .95 1.5 Ω

V

IN

= 3V 0.5 1.5 A

IN

V

= 5V 1.0 1.4 2.0 A

IN

VIN = 12V 1.2 1.9 2.5 A

2.7 Ω

1.7 Ω

6

1997 6-19