Datasheet

MAX16993 Step-Down Controller with
Dual 2.1MHz Step-Down DC-DC Converters
www.maximintegrated.com
Maxim Integrated │ 24
Selector Guide
Ordering Information
Note: Insert the desired suffix letter (from the Selector Guide)
into the blank to indicate buck switching frequency, active time-
out period, fixed or adjustable output voltages, and maximum
output current.
/ V denotes an automotive qualified part.
+Denotes a lead(Pb)-free/RoHS-compliant package.
**EP = Exposed pad/side-wettable flanked package.
†EP = Exposed pad.
Contact factory for options that are not included. Factory-
selectable features include:
• f
SW1
divide ratio with respect to master clock
• DC-DC output voltage
• Number of cycles in active timeout period
• Independent current limit for each channel up to 3A
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
OPTION
BUCK 1 BUCK 2 BUCK 3
SYNC
FIXED
OUTPUT
VOLTAGE
(V)
f
SW1
DIVIDE
RATIO
FROM f
SW
ACTIVE
TIMEOUT
PERIOD
(ms)
FIXED
OUTPUT
VOLTAGE
(V)
MAX
OUTPUT
CURRENT
(A)
ACTIVE
TIMEOUT
PERIOD
(ms)
FIXED
OUTPUT
VOLTAGE
(V)
MAX
OUTPUT
CURRENT
(A)
ACTIVE
TIMEOUT
PERIOD
(SAME AS
BUCK 2)
(ms)
A 3.3/5.0 ÷5 3.9 ADJ 3.0 3.9 ADJ 3.0 3.9 Input
B 3.3/5.0 ÷5 3.9 3.15 1.5 3.9 1.8 1.5 3.9 Input
C 3.3/5.0 ÷5 1.9 ADJ 1.5 1.9 ADJ 1.5 1.9 Input
D 3.3/5.0 ÷5 3.9 1.05 3.0 3.9 3.3 1.5 3.9 Input
E 3.3/5.0 ÷5 3.9 3.30 1.5 3.9 1.5 1.5 3.9 Input
F 3.3/5.0 ÷5 3.9 3.3 1.5 3.9 1.2 1.5 3.9 Input
G 3.3/5.0 ÷5 3.9 3.3 1.5 3.9 1.8 1.5 3.9 Input
H 3.3/5.2 ÷5 3.9 3.3 3.0 3.9 1.8 1.5 3.9 Input
I ADJ ÷5 1.9 ADJ 1.5 1.9 ADJ 1.5 1.9 Input
PART TEMP RANGE PIN-PACKAGE
MAX16993AGJ_/VY+ -40°C to +125°C 32 QFND-EP**
MAX16993ATJ_+ -40°C to +125°C 32 TQFN-EP
†
MAX16993ATJ_/V+ -40°C to +125°C 32 TQFN-EP
†
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
32 QFND-EP G3255Y+1 21-0563 90-0361
32 TQFN-EP T3255+4 21-0140 90-0012