ZL2105ALNF Intersil, ZL2105ALNF Datasheet - Page 5

• Manufacturer Part Number: ZL2105ALNF
• Description: IC DGTL DC-DC CTRLR 3A 36QFN
• Manufacturer: Intersil
• Type: Step-Down (Buck), PWM - Voltage Moder

Specifications of ZL2105ALNF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.6 V ~ 5.5 V
• Current - Output: 3A
• Frequency - Switching: 200kHz ~ 2MHz
• Voltage - Input: 4.5 V ~ 14 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 3. Electrical Characteristics (continued)
V
Notes:
1. Factory default Power Good delay is set to the same value as the soft start ramp time.
2. t
3. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
DDP
Switch node current, I
Switching frequency range
Switching frequency set-point accuracy
Minimum SYNC pulse width
Input clock frequency drift tolerance
Maximum duty cycle
R
R
UVLO threshold range
UVLO setpoint accuracy
UVLO hysteresis
UVLO delay
Power good low threshold
Power good high threshold
Power good hysteresis
Power good delay
VSEN undervoltage threshold
VSEN overvoltage threshold
VSEN undervoltage hysteresis
VSEN undervoltage/ overvoltage fault
response time
Peak current limit threshold
Current limit setpoint accuracy
Current limit shutdown delay
Thermal protection threshold (junction
temperature)
Thermal protection hysteresis
Oscillator and Switching Characteristics
Fault Protection Characteristics
DS(ON)
DS(ON)
SW
= V
= 1/f
of High Side N-channel FETs
of Low Side N-channel FETs
DDS
SW
= 12 V, T
, where f
Parameter
5
SW
A
SW
= -40 C to 85 C unless otherwise noted. Typical values are at T
is the switching frequency.
Using ILIM pin or via I
I
SW
Configurable via I
Configurable via I
Configurable via I
Configurable via I
Configurable via I
Configurable via I
Configurable via I
Using pin-strap or resistor
=1A, V
I
External clock source
SW
Sourcing or Sinking
Predefined settings
I
SW
Factory default
Factory default
Factory default
Factory default
Factory default
Factory default
Factory default
Factory default
Factory default
= 1 A, V
Conditions
ZL2105
GS
=1A, V
=8.5V, Charge Pump
GS
GS
2
2
2
2
2
2
2
=12V
= 4.7 V
C/SMBus
C/SMBus
C/SMBus
C/SMBus
C/SMBus
C/SMBus
C/SMBus
2
C/SMBus
1
(Note 3)
3.79
Min
200
150
-13
0.2
-40
90
-5
-2
–
–
–
–
–
0
–
–
–
–
0
0
–
0
–
0
–
–
5
–
–
1
–
–
A
±100
Typ
= 25 C.
125
123
114
115
115
125
90
85
16
15
3
–
–
–
–
–
–
–
3
–
–
5
–
–
–
–
5
–
–
5
–
–
(Note 3)
2000
Max
13.2
180
140
130
100
200
500
110
115
125
4.0
2.5
4.5
13
60
32
5
–
–
2
–
–
–
–
–
–
–
–
–
–
–
–
March 30, 2011
FN6851.2
% V
% V
% V
% V
% V
% V
% V
Unit
kHz
t
t
mΩ
mΩ
mΩ
mA
ms
SW
SW
°C
°C
°C
µs
µs
µs
%
ns
%
%
%
%
%
%
A
V
A
s
OUT
OUT
OUT
OUT
OUT
OUT
2
2
O