MAX16903 Maxim Integrated Products, MAX16903 Datasheet - Page 11

• Manufacturer Part Number: MAX16903
• Description: 1A Mini-Buck Converter
• Manufacturer: Maxim Integrated Products

DataSheet.in
4) Keep the high current paths short especially at the
5) Connect the PGND and GND together preferably at
6) Keep the power traces and load connections short.
Figure 1. Human Body ESD Test Circuit
Note: All devices operate over the -40°C to +125°C automotive temperature range.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
* EP = Exposed pad.
MAX16903RATB50/V+
MAX16903RAUE50/V+
MAX16903SATB50/V+
MAX16903SAUE50/V+
MAX16903RATB33/V+
MAX16903RAUE33/V+
MAX16903SATB33/V+
MAX16903SAUE33/V+
ground terminals. The practice is essential for stable
jitter-free operation.
the return terminal of the output capacitor. Do not
connect them anywhere else.
This practice is essential for high efficiency. Use
thick copper PCB to enhance full load efficiency and
power dissipation capability.
2.1MHz, High-Voltage, 1A Mini-Buck Converter
VOLTAGE
SOURCE
HIGH-
DC
PART
CHARGE-CURRENT-
LIMIT RESISTOR
______________________________________________________________________________________
1MΩ
100pF
C
S
RESISTANCE
DISCHARGE
STORAGE
CAPACITOR
1.5kΩ
OUTPUT VOLTAGE
R
D
(V)
3.3
3.3
3.3
3.3
5
5
5
5
DEVICE
UNDER
TEST
(3mm x 3mm x 0.75mm)
(3mm x 3mm x 0.75mm)
(3mm x 3mm x 0.75mm)
(3mm x 3mm x 0.75mm)
PIN-PACKAGE
(5mm x 4.4mm)
(5mm x 4.4mm)
(5mm x 4.4mm)
(5mm x 4.4mm)
16 TSSOP-EP*
16 TSSOP-EP*
16 TSSOP-EP*
16 TSSOP-EP*
10 TDFN-EP*
10 TDFN-EP*
10 TDFN-EP*
10 TDFN-EP*
7) Route high-speed switching nodes away from sensi-
The ESD tolerance for the MAX16903 is rated for Human
Body Model and Machine Model. The Human Body
Model discharge components are C
= 1.5kΩ (Figure 1). The Machine Model discharge com-
ponents are C
Figure 2. Machine Model ESD Test Circuit
tive analog areas. Use internal PCB layers as PGND
to act as EMI shields to keep radiated noise away
from the device and analog bypass capacitor.
VOLTAGE
SOURCE
HIGH-
DC
CHARGE-CURRENT-
S
LIMIT RESISTOR
= 200pF and R
SWITCHING FREQUENCY
200pF
SPREAD-SPECTRUM
C
S
RESISTANCE
DISCHARGE
STORAGE
CAPACITOR
Yes
Yes
Yes
Yes
⎯
⎯
⎯
⎯
0Ω
R
D
D
Selector Guide
= 0Ω (Figure 2).
ESD Protection
S
= 100pF and R
DEVICE
UNDER
TEST
MARK
AVW
TOP
AVU
AVT
AVV
⎯
⎯
⎯
⎯
11
D