zl2103 Intersil Corporation, zl2103 Datasheet - Page 7

• Manufacturer Part Number: zl2103
• Description: 3a Digital-dc Synchronous Step-down Dc/dc Converter
• Manufacturer: Intersil Corporation

Electrical Specifications
Boldface limits apply over the operating temperature range, -40°C to +85°C.
Soft-start Delay Duration Accuracy
Soft-start Ramp Duration Range
Soft-start Ramp Duration Accuracy
Logic Input/output Characteristics
Logic Input Leakage Current
Logic input low, V
Logic input OPEN (N/C)
Logic Input High, V
Logic Output Low, V
Logic Output High, V
Oscillator and Switching Characteristics
Switch Node Current, I
Switching Frequency Range
Switching Frequency Set-point Accuracy
PWM Duty Cycle (max)
SYNC Pulse Width (min)
Input Clock Frequency Drift Tolerance
r
r
Tracking
VTRK Input Bias Current
VTRK Tracking Ramp Accuracy
VTRK Regulation Accuracy
Fault Protection Characteristics
UVLO Threshold Range
UVLO Set-point Accuracy
UVLO Hysteresis
UVLO Delay
Power-good V
Power-good V
Power-good Delay
DS(ON)
DS(ON)
of High Side N-channel FETs
of Low Side N-channel FETs
OUT
OUT
IL
Threshold
Hysteresis
IH
OL
PARAMETER
OH
SW
7
V
DDP
= V
DDS
= 12V, T
Turn-on delay (precise mode)
(Notes 13, 14)
Turn-on delay (normal mode) (Note 15)
Turn-off delay (Note 15)
Set using SS pin or resistor
Set using I
Digital pins
Multi-mode logic pins
I
I
Peak (source or sink) (Note 16)
Predefined settings (Table 9)
Factory default (Note 17)
External clock source
I
I
VTRK = 5.5V
100% Tracking, V
100% Tracking, V
Configurable via I
Factory default
Configurable via I
Factory default
Factory default
Using pin-strap or resistor
Configurable via I
OL
OH
SW
SW
≤ 4mA
≥ -2mA
= 3A, V
= 3A, V
A
= -40°C to +85°C unless otherwise noted. (Note 10) Typical values are at T
2
GS
GS
C/SMBus
ZL2103
CONDITIONS
= 12V
= 6.5V
OUT
OUT
2
2
2
C/SMBus
C/SMBus
C/SMBus )
- VTRK
- VTRK
(Continued)
(Note 20)
-250
2.25
-100
2.85
-150
MIN
200
150
2.0
-13
-5
-1
2
0
0
2
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-0.25/+4
-0.25/+4
±0.25
100
110
TYP
1.4
60
43
90
3
5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
(Note 20)
(Note 18)
1000
MAX
200
250
200
100
150
100
500
0.8
0.4
4.5
2.5
20
95
13
85
65
16
20
–
5
1
-
-
-
-
-
-
-
-
-
-
A
= +25°C.
May 3, 2011
% V
FN6966.5
UNIT
kHz
mΩ
mΩ
ms
ms
ms
ms
ms
mV
mV
ms
nA
µA
µs
ns
µs
%
%
%
%
%
%
%
V
V
V
V
V
A
V
s
OUT