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AM1/4L-N Series 
0.25 watt dc-dc converters
 SMD PACKAGE
 UL94-VO PACKAGE
 LOW RIPPLE & NOISE
 EFFICIENCY UP TO 68%
 INPUT/OUTPUT ISOLATIONS OF 1000 & 3000VDC 
 OPERATING TEMPERATURE: -40°C ... +85°C 
 UNREGULATED
 PIN-COMPATIBLE WITH MULTIPLE MANUFACTURERS
GENERAL DESCRIPTION
ELECTRICAL SPECIFICATIONS
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
Input Specifications:
Voltage range
±10% 
Filter
Capacitor
Our AM1/4L-N series is a family of cost effective
1/4W
 single and dual output DC/DC converters.
These converters combine a miniature SMD pack-
age and high performance features such as a 1000 &
3000VDC input/output isolation voltages, continu-
ous short circuit protection and a tight line / load
regulation.
96 models operate from input voltages of 3.3, 5, 12 and
24VDC producing output voltages of 3.3, 5, 9, 12, 15,
24,  ±5, ±9, ±12, ±15 & ±24VDC. Full SMD design
and a 100% production test of parameters ensures a
high reliability in this product.
MTBF: > 3,500,000 hrs (MIL-HDBK-217F, Ground Benign, t=+25°C)
Specifications are subject to change without notification.
Isolation Specifications:
Rated voltage (60 sec) 
Resistance 
Capacitance 
1000 & 3000VDC 
> 1000MOhm 
60pF, typ.
Output Specifications:
Voltage accuracy
Voltage balance (Dual Output)
Ripple & Noise 
(at 20MHz BW)
Short circuit protection 
Line voltage regulation 
Load voltage regulation
Temperature coefficient 
±5%, max.
±2%
75m Vp-p, typ.
1 sec.
±1.2% max. for 1% of Vin
10% typ., (10...100% load)
±0.03%/°C, max.
Environmental Specifications:
Operating temperature 
(ambient)
 -40°C ... +85°C 
Storage temperature 
Case Temperature
Derating  
Humidity (non-condensing)
Cooling  
-55°C ... +125°C
+95°C, max.
None required 
Up to 95% 
Free-air Convection
Physical Specifications:
Dimensions (Single)
Dimensions (Dual)
Dimensions (S&D@3000VDC) 15.20x11.20x6.00mm 
Weight 
Case material  
12.70x11.20x6.30mm
15.30x11.20x6.30mm
1.5g 
UL94-VO Plastic
General Specifications:
Efficiency 
Switching frequency (Single)
Switching frequency (Dual)
68%, typ. 
100KHz, typ., 100% load
150KHz, typ., 100% load
D
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