MAX16903 Maxim Integrated Products, MAX16903 Datasheet - Page 6

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

DataSheet.in
5V
5V
2.1MHz, High-Voltage, 1A Mini-Buck Converter
(V
6
TDFN-EP
SUP
_______________________________________________________________________________________
LOAD-TRANSIENT RESPONSE
1
2
3
4
= +14V, T
I
(SKIP MODE)
LOAD
PIN
200µs/div
TSSOP-EP
= 100mA TO 1A TO 100mA
A
= +25°C, unless otherwise noted.)
2, 3
4, 5
6, 7
1
MAX16903 toc09
TOP VIEW
PGND
OUTS
SUP
BST
NAME
PGND
LX
SUP
BST
LX
I
1A/div
V
200mV/div
AC-
COUPLED
PGOOD
5V/div
LOAD
OUT
1
2
3
4
5
+
TDFN-EP
3.5V
MAX16903
Bootstrap Capacitor for High-Side Driver (0.1µF)
Voltage Supply Input. Connect a 4.7µF ceramic capacitor from SUP to PGND. Place the
capacitor very close to the SUP pin. For the TSSOP-EP package, connect both SUP pins
together for proper operation.
Buck Switching Node. LX is high impedance when the device is off. For the TSSOP
package, connect both LX pins together for proper operation.
Power Ground. For the TSSOP-EP package, connect both PGND pins together for
proper operation.
14V
Typical Operating Characteristics (continued)
UNDERVOLTAGE PULSE (COLD CRANK)
EP
10
9
8
7
6
10ms/div
EN
GND
BIAS
SYNC
PGOOD
I
LOAD
PGND
PGND
OUTS
N.C.
SUP
BST
= 500mA
MAX16903 toc10
LX
LX
1
2
3
4
5
6
7
8
FUNCTION
+
V
10V/div
V
5V/div
PGOOD
5V/div
I
1A/div
LOAD
SUP
OUT
TSSOP-EP
MAX16903
500
450
400
350
300
250
200
150
100
EP
50
0
0.01
Pin Configurations
16
15
14
13
12
11
10
9
N.C.
EN
GND
BIAS
SYNC
PGOOD
N.C.
N.C.
Pin Description
STANDBY CURRENT
vs. LOAD CURRENT
I
LOAD
0.10
(mA)
1.00