NCP6354

http://onsemi.com

3

PWM / PFM

Control

Reference

Voltage

L

Cout

1uH

10uF

Logic Control

&

Current Limit

&

Thermal

Shutdown

Cin

10uF

Rpg

1M

UVLO

Vin

Vo

Power Good

Enable

PVIN

8

SW

2

PGND

1

EN

5

PG

6

FB

4

AVIN

7

AGND

3

R1

R2

Cfb

Error

Amp

Figure 2. Functional Block Diagram.

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Min

Max

Input Supply Voltage to GND

−0.3

7.0

V

Switch Node to GND

−0.3

7.0

V

EN, PG to GND

−0.3

7.0

V

FB to GND

−0.3

2.5

V

Human Body Model (HBM) ESD Rating are (Note 1)

ESD HBM

2000

V

Machine Model (MM) ESD Rating (Note 1)

ESD MM

200

V

Latchup Current (Note 2)

−100

100

mA

Operating Junction Temperature Range (Note 3)

−40

125

°C

Operating Ambient Temperature Range

−40

85

°C

Storage Temperature Range

−55

150

°C

Thermal Resistance Junction−to−Top Case (Note 4)

12

°C/W

Thermal Resistance Junction−to−Board (Note 4)

30

°C/W

Thermal Resistance Junction−to−Ambient (Note 4)

62

°C/W

Power Dissipation (Note 5)

1.6

W

Moisture Sensitivity Level (Note 6)

MSL

1

−

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

1. This device series contains ESD protection and passes the following tests:

Human Body Model (HBM) ±2.0 kV per JEDEC standard: JESD22−A114.

Machine Model (MM) ±200 V per JEDEC standard: JESD22−A115.

2. Latchup Current per JEDEC standard: JESD78 Class II.

3. The thermal shutdown set to 150°C (typical) avoids potential irreversible damage on the device due to power dissipation.

4. The thermal resistance values are dependent of the PCB heat dissipation. Board used to drive these data was an 80 x 50mm NCP6334EVB

board. It is a multilayer board with 1−once internal power and ground planes and 2−once copper traces on top and bottom of the board. If

5. The maximum power dissipation (PD) is dependent on input voltage, maximum output current and external components selected.

6. Moisture Sensitivity Level (MSL): 1 per IPC/JEDEC standard: J−STD−020A.