i6A Series DC-DC Power Module
Series
9-53 V Wide Input, 250 W Buck/Step-Down
Converter, 1/16th Brick Footprint
i6A4W power modules perform local voltage
conversion from a 12 V, 24 V, or well-regulated 48 V
bus. The i6A4W series utilizes a low component count
that results in both a low-cost structure and a high level
of performance. The open-frame and compact design
features a low profile and weight that allow for
extremely flexible and robust manufacturing processes.
The ultra-high efficiency allows for a high amount of
useable power even in demanding thermal
environments.
Features
Size – 33mm x 22.9 mm x 12.1 mm
(1.30 in. x 0.90 in. x 0.47 in.)
Maximum weight 15g (0.53 oz.)
Through-hole pins 3.68mm (0.145 in)
Industry standard 1/16th brick form factor
Up to 250W of output power in high ambient
temperature, low airflow environments with
minimal power derating
Wide output voltage adjustment range
Negative logic On/Off
Optimized dynamic voltage response with
minimal external capacitors
Low noise
Constant switching frequency
Remote Sense
Full, auto-recovery protection:
- Input under voltage
- Short circuit
- Thermal limit
ISO Certified manufacturing facilities
February 21, 2022 v5
Optional Features
Positive logic On/Off
Power Good
Frequency Synchronization
Output Voltage Sequencing
Short 2.79 mm (0.110 in) pin length
Long 4.57 mm (0.180 in”) pin length
Applications
Contact technical support for applications
requiring constant current operation
Specifications – i6A4W Series
1 / 22
Ordering Information:
Product
Identifier
Package
Size
Platform
Input
Voltage
Output
Current
Units
Main
Output
Voltage
# of
Outputs
i
6
A
4W
020
A
033
V
TDKLambda
33 mm x
22.9 mm
i6A
9 to 53 V
010 – 10
020 – 20
Amps
3.3 V
Single
-
Safety
Class
Feature
Set
0
01
See
option
table
RoHS
indicator
-
R
R=RoHS
Compliant
Option Table:
Negative Logic
On/Off
Full Feature
(Power Good,
SYNC, SEQ)
Enhanced
Feature (Power
Good, SYNC)
0.145” Pin
Length
0.180” Pin
Length
Yes
-
-
-
Yes
-
-
Yes
-
-
Yes
-
-002
Yes
-
Yes
-
Yes
-
-003
-
Yes
Yes
-
Yes
-
-005
-
Yes
-
Yes
Yes
-
-007
-
Yes
-
-
-
Yes
-009
-
Yes
Yes
-
-
Yes
Feature Set
Positive Logic
On/Off
-000
-001
Product Offering:
Product Code
Input Voltage (V)
Output Voltage (V)
Output Current (A)
Maximum Output
Power (W)
Efficiency
i6A4W020A033V
9 - 53
3.3 - 15
20
250
97%
i6A4W010A033V
9 - 53
3.3 - 40
10
250
97%
February 21, 2022 v5
Specifications – i6A4W Series
2 / 22
Typical Application Circuit:
i6A Series DC/DC
1
Vin(+)
Vout(+)
8
7
SENSE(+)
Cin
2
+
TRIM
ON/OFF
Cout
6
+
100uF
Vin
0.1uF
22uF
*
Rup
3
3.3V
Vin(-)
Vout(-)
Power
Good SYNC
5
32
33
4
User
application
MS SEQ
3.3V
34
10k
10k
Optional features
Recommendation
1.
TRIM resistor Rup should be connected to the i6A module as close as possible.
February 21, 2022 v5
Specifications – i6A4W Series
3 / 22
Mechanical Specification:
Dimensions are in mm [in]. Unless otherwise specified tolerances are:
x.x 0.5 [0.02], x.xx 0.25 [0.010].
33.0 [1.30]
22.9 [0.90]
12.1 [0.474]
MAX
1.57 [0.062] DIA Pins
2.59 [0.102] DIA Stand-offs
2 Places
1.02 [0.040] DIA Pins
1.78 [0.070] DIA Stand-offs
up to 9 Places
3.7 [0.14]
4.6 [0.18] Optional Pin Length
Pin 1
Chamfer
1.3 [0.05]
1.3 [0.05]
February 21, 2022 v5
Specifications – i6A4W Series
4 / 22
Recommended Hole Pattern – STANDARD – 000-R/-001-R/-007-R (Top View):
33.0 [1.30]
3.8 [0.15]
3.8 [0.15]
Pin1
Pin8
3.8 [0.150]
Pin7
7.6 [0.300]
7.6 [0.300]
15.2 [0.600]
Pin6
Pin2
15.2 [0.600]
22.9 [0.90]
Pin4
Pin3
2.5 [0.10]
2.5 [0.10]
27.9 [1.100]
Recommended Hole Pattern – FULL FEATURE –002-R/-003-R/-005-R**/-009-R (Top View):
33.0 [1.30]
3.8 [0.15]
3.8 [0.15]
Pin1
Pin8
Pin34
Pin7
Pin2
Pin6
3.8 [0.150]
3.8 [0.150]
7.6 [0.300]
7.6 [0.300]
15.2 [0.600]
Pin33
Pin3
Pin32
15.2 [0.600]
11.4 [0.450]
22.9 [0.90]
Pin5
Pin4
2.5 [0.10]
20.3 [0.800]
24.1 [0.950]
2.5 [0.10]
2.5 [0.10]
27.9 [1.100]
Pin Assignment:
PIN
Function
PIN
Function
1
Vin (+)
7
SENSE +
2
On / Off
8
Vout (+)
3
Vin (-) / GND
32
SYNC (Option)
4
Vout (-) / GND
33
MS (Option)
5
Power Good
(Option)
34
SEQ (Option)
6
TRIM
February 21, 2022 v5
Note:
Pin base material is brass or copper with gold over nickel
plating.
Maximum Weight: 15g (0.53 oz.)
** For option code –005-R, pin 34 (SEQ-Sequencing) is not
present.
Specifications – i6A4W Series
5 / 22
Absolute Maximum Ratings:
Stress in excess of Absolute Maximum Ratings may cause permanent damage to the device.
Characteristic
Min
Max
Unit
Continuous Input Voltage
-0.25
55
Vdc
Isolation Voltage
---
---
Vdc
Storage Temperature
-55
125
˚C
Operating Temperature Range (Tc)
-40
125*
˚C
Notes & Conditions
None
Measured at the location specified in the
thermal measurement figure; maximum
temperature varies with output current –
see curve in the thermal performance
section of the data sheet.
* Engineering Estimate
Input Characteristics:
Unless otherwise specified, specifications apply over all rated Input Voltage, Resistive Load, and Temperature conditions.
Characteristic
Min
Typ
Max
Unit
Notes & Conditions
Operating Input Voltage
10
---
53
Vdc
Vin > Vo
Maximum Input Current
---
---
20
A
Stand-by Input current
---
1.5
---
mA
Vin = Vin,nom, On/Off = Off
Startup Delay Time from application of
input voltage
---
4
---
ms
Vo = 0 to 0.1*Vo,set; On/Off = On,
Io = Io,max, Tc = 25˚C
Startup Delay Time from On/Off
---
3
---
ms
Vo = 0 to 0.1*Vo,set; Vin = Vin,nom,
Io = Io,max,Tc = 25˚C
Output Voltage Rise Time
---
10
---
ms
Io = Io,max,Tc = 25˚C, Vo = 0.1 to
0.9*Vo,set
Input Ripple Rejection
---
50*
---
dB
@ 120 Hz
Turn on input voltage
---
8
---
V
Turn off input voltage
*Engineering Estimate
---
7
9
V
Vin = Vin,min to Vin,max; Io = Io,max
Caution: The power modules are not internally fused. An external input line normal blow fuse with a maximum value of 30A is required,
see the Safety Considerations section of the data sheet.
February 21, 2022 v5
Specifications – i6A4W Series
6 / 22
Electrical Characteristics: i6A4W020A033V (20 A)
Characteristic
Min
Typ
Max
Unit
Notes & Conditions
Output Voltage Initial Setpoint
-2
-
+2
%
Vo = 3.3 V setting, Vin = Vin,nom;
Io = Io,min; Tc = 25 ˚C
Output Voltage Tolerance
-4
-
+4
%
Overall rated input voltage, load, and
temperature conditions to end of life
Efficiency
Vo = 5 V
Vo = 9 V
-----
95
97
-----
%
%
Vin = 12 V; Io = Io,max; Tc = 25 ˚C
Efficiency
Vo = 5 V
Vo = 12 V
-----
93
97
-----
%
%
Vin = 24 V; Io = Io,max; Tc = 25 ˚C
Efficiency
Vo = 5 V
Vo = 12 V
-----
90
95
-----
%
%
Vin = 48 V; Io = Io,max; Tc = 25 ˚C
Line Regulation
---
0.4
---
%
Vin = Vin,min to Vin,max
Load Regulation
---
1.2
---
%
Io = Io,min to Io,max
Output Current
0
---
20
A
Observe maximum power limit
Output Current Limiting Threshold
---
27
---
A
Vo = 0.9*Vo,nom, Tc