NB650/NB650H – 6A, 28V, FAST-TRANSIENT, SYNCHRONOUS STEP-DOWN CONVERTERS
ORDERING INFORMATION
Part Number
NB650GL*
Package
Top Marking
NB650
QFN17 (3 x 4mm)
NB650HGL**
NB650H
* For Tape & Reel, add suffix –Z (e.g. NB650GL–Z)
** For Tape & Reel, add suffix –Z (e.g. NB650HGL–Z)
PACKAGE REFERENCE
TOP VIEW
FREQ SS RFB1 RFB2 FB AGND
17
16
15
14
13
12
IN
11
10
9
IN
SW
SW
1
2
SW
SW
GND
GND
GND
GND
3
4
5
6
7
8
BST PG EN VID1 VID2 VCC
EXPOSED PAD
ON BACKSIDE
QFN17 (3x4mm)
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance (4)
θJA
θJC
Supply Voltage VIN ....................................... 28V
QFN17(3 x 4mm) ....................52 .... 11 ..°C/W
V
SW........................................-0.3V to VIN + 0.3V
VSW..............................-3V to VIN + 3V for <30ns
BST ......................................................VSW + 6V
All Other Pins..................................-0.3V to +6V
Continuous Power Dissipation
(TA = +25°C) (2)
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ(MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD(MAX)=(TJ(MAX)-
TA)/ θJA. Exceeding the maximum allowable power dissipation
will cause excessive die temperature, and the regulator will go
into thermal shutdown. Internal thermal shutdown circuitry
protects the device from permanent damage.
V
QFN17 ….……………………… ……….2.4W
Junction Temperature...............................150°C
Lead Temperature ....................................260°C
Storage Temperature............... -65°C to +150°C
Recommended Operating Conditions (3)
Supply Voltage VIN ........................4.5V to 22.5V
Output Voltage VOUT.........................0.6V to 13V
Operating Junction Temp. (TJ). -40°C to +125°C
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
NB650/NB650H Rev. 1.12
10/11/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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